Telenetics Network Card Modular Nest User Manual

Part No. TEL–09949, Rev A  
June 2001  
Page 1 of 34  
326X SERIES MODEM  
Modem Cards, Backplanes, and Modular Nest 9 and 21 Enclosures  
In This Notice  
Topic  
See Page  
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Part No. TEL09949, Rev A  
June 2001  
Safety Information  
Page 3 of 34  
Safety Information  
This section explains how Warning Notices are used in Telenetics’ documentation,  
and it provides such notices for users of the 326X Series Modem.  
Warning Description  
The following notice emphasizes certain information. In documentation, it is  
displayed in the format shown:  
Warning  
Warning is the most serious notice, indicating that you can be physically hurt.  
Un avertissement constitue le message le  
plus sérieux, indiquant que vous pouvez  
subir des blessures corporelles.  
Eine Warnung ist der ernsthafteste  
Hinweis auf Körperverletzungsgefahr.  
Connecting Port Warning  
Warning  
Ports that are capable of connecting to other apparatus are defined as SELV. To  
ensure conformity with EN60950, ensure that these ports are only connected to ports  
of the same type on other apparatus.  
Les ports qui sont susceptibles d’être  
connectés à des équipements sont  
désignés comme TBTS. Pour garantir la  
conformité à la norme EN 60950,  
n’interconnecte ces ports qu’avec des  
ports du même type sur des autres  
matériels.  
Anschlüsse, die mit anderen Geräten  
verbunden werden können, sind als  
SELV beschrieben. Um Konformität mit  
EN 60950 zu versichern, versichern Sie,  
daß diese Anschlüsse nur mit denen der  
selben Type auf anderen Geräten  
verbunden werden.  
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Part No. TEL09949, Rev A  
June 2001  
Safety Information  
Page 4 of 34  
Installation Warning  
Warning  
All Telenetics devices should be used in environments designed for computers and  
electronic equipment. In areas susceptible to lightning, take precautions to prevent  
damage to electronic equipment. Contact your telephone company, or an electronic  
accessories vendor, for information on lightning protection equipment. Customers  
experiencing problems caused by surges from lightning have eliminated such  
problems by installing appropriate surge suppressors on power and data lines  
connected to Telenetics devices.  
Tous les dispositifs Telenetics doivent être  
utilisés dans des environnements conçus pour  
des ordinateurs et du matériel électronique.  
Dans les zones susceptibles d’être frappées  
par la foudre, prenez des précautions pour  
éviter que le matériel électronique soit  
endommagé. Contactez votre compagnie  
téléphonique, ou un vendeur d’accessoires  
électroniques, pour obtenir des  
renseignements concernant les systèmes de  
protection contre la foudre. Certains usagers  
confrontés à des problèmes causés par des  
sautes de tension dues à la foudre ont éliminé  
ces problèmes en installant des régulateurs de  
tension appropriés sur les câbles électriques et  
les câbles de données reliés aux dispositifs  
Telenetics.  
Telenetics-Geräte sind grundsätzlich in für  
Rechner und elektronische Anlagen  
vorgesehenen Umgebungen zu verwenden. In  
unwettergefährdeten Bereichen ist jegliche  
Elektronik gegen Blitzeinwirkung zu  
schützen. Näheres über entsprechende  
Schutzeinrichtungen erfahren Sie von Ihrer  
Telefongesellschaft oder einem  
Elektrohändler. Probleme mit  
Spannungsstößen durch Blitzeinwirkung  
lassen sich durch Einbau von  
Überspannungsableitern in die zu Telenetics-  
Geräten führenden Netz- und Datenleitungen  
beheben.  
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Part No. TEL09949, Rev A  
June 2001  
Pre-Installation Information and Activities  
Page 5 of 34  
Pre-Installation Information and Activities  
This section provides information about 326X Series Modem card models 3262,  
3263, 3267 and 3268. It describes activities you must complete before installing and  
operating 326X Series Modem card(s) in a Modular Nest enclosure.  
326X Series Modem Cards and Backplanes  
This section describes 326X Series Modem cards and backplanes, and items shipped  
with them.  
326X Series Modem Cards  
326X Series Modem cards can be:  
Dial modem —two modems on a card, 2-wire leased line or dial  
(Model 3262 or 3267)  
Leased line modem with dial restoral—2-/4- wire leased line or 2-wire dial  
(3263 or 3268)  
With each modem card, you receive:  
• Audio cables for connecting to the dial and leased line  
Optionally, you receive:  
• Two audio cables with ferrite beads (U.S.A., Japan, and Canada only)  
• Modular connector blocks (Japan only)  
Refer to the 326X Series Modem Users Guide, Appendix C, Country-Specific  
Information, for a description of the cables that meet your country’s requirements.  
326X Series Modem Card Backplanes  
326X Series Modem card backplanes can be:  
- 1-card/2-slot  
- 9-card/10-slot  
- 21-card/21-slot (for 21-slot enclosure only)  
With each 326X Series Modem card backplane, you receive:  
- One 326X Series Modem Users Guide (Part No. TEL–T0009)  
- One 326X Series Modem Reference Card (Part No. TEL–T0009-01)  
- Four cable clamps  
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Part No. TEL09949, Rev A  
June 2001  
Pre-Installation Information and Activities  
Page 6 of 34  
Stand-alone Modems and Enclosure Cards: Differences  
The 326X Series Modem card front panel differs from that of the stand-alone 326X  
Series Modem. As shown in Figure 1, the 3262, 3263, 3267, and 3268 Modem cards  
have eight front-panel LEDs. Stand-alone 326X Series Modems do not have two of  
these:  
• A/B LED  
• ALM LED  
These two LEDs are described here.  
326x Ready  
ACROSS  
RETURN DOWN  
ENTER  
The A/B and ALM LED's are not featured in stand-alone modems.  
Figure 1. 326X Series Modem Card Front Panel  
A/B Switching and the A/B LED  
With the 3262 and the 3267 Modem card (dial-only), two modems (A and B) share a  
single card and front panel. One modem controls the front panel display and LEDs at  
a time. The A/B LED indicates which front panel display and LEDs you are  
currently viewing. When the A/B LED is:  
Lit (green), modem A front panel information is being displayed  
Not lit, modem B front panel information is being displayed  
To toggle between the displays, hold down , and press  
.
Since the 3263 and the 3268 Modem cards (leased line with dial restoral) contain  
only one modem, the A/B LED is always lit (green).  
ALM LED  
The ALM LED lights (yellow) when a test is in progress or a modem failure occurs.  
With the Dual Dial Modem card, if one modem fails or is being tested, the ALM  
LED lights and remains lit regardless of which modem front panel is displayed.  
To find out which modem failed, toggle between the front panels of modems A and  
B by holding down , and pressing . The failed modem displays:  
ERRORxxx  
Note  
If modem A has control and the network manager puts modem B into test mode,  
modem B’s ALM LED lights.  
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Part No. TEL09949, Rev A  
June 2001  
Pre-Installation Information and Activities  
Page 7 of 34  
Telephone Company ComplianceU.S.A. Models  
The Telenetics 326X Series Modem complies with Part 68 of the FCC rules. The  
modem card includes a label with the FCC registration number for this equipment. If  
requested by the telephone company, you must provide this information. Generally,  
the ringer equivalence number (REN) is also requested for telephone equipment. The  
REN is listed on the FCC registration label.  
The REN is used to determine the number of devices that can be connected to the  
telephone line. Excessive RENs on the telephone line may result in the devices not  
ringing in response to an incoming call. The sum of the RENs should not exceed  
five. To be certain of the number of devices that can be connected to the line, contact  
the telephone company to determine the maximum REN for the calling area.  
NOTE: The telephone company may make changes in its facilities, equipment,  
operations, or procedures that could affect equipment operation. If this happens, the  
telephone company will notify you in advance so that you can make the necessary  
modifications to maintain uninterrupted service.  
This equipment uses the following USOC jacks: RJ11C, RJ16C, RJ45S, RJ4MB,  
and for the leased line, JM8.  
Refer to the 326X Series Modem Users Guide, Appendix C, Country-Specific  
Information, for regulatory agency information for your country.  
Backplane Jumpers for the Busy Out Feature  
This section applies to countries that use the “Universal International” (UI) Modular  
Nest enclosure backplane.  
This section also is of interest to users in Hong Kong and the United Kingdom.  
Hong Kong and the United Kingdom  
IMPORTANT: In Hong Kong and the United Kingdom, do not install a 3268 or  
3268FAST Modem (leased line with dial restoral) in a Busy Out backplane.  
The modem will not function.  
In Hong Kong and the United Kingdom, Busy Out backplanes are hard-wired for  
Busy Out operation. These backplanes do not use pin jumpers.  
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Part No. TEL09949, Rev A  
June 2001  
Pre-Installation Information and Activities  
Page 8 of 34  
Countries That Support Busy Out  
Some backplanes have a Busy Out feature and are intended for use with dial modems  
(models 3262 and 3267). In some countries, leased modems (models 3263 and 3268)  
use Busy Out for dial restoral. The following table shows which countries use the  
Busy Out feature.  
Countries that Support the Busy Out Option  
Country  
3262 and  
3267  
3263 and  
3268  
Australia  
Yes  
Yes  
Belgium  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
No  
Yes  
No  
Canada  
Denmark  
Yes  
No*  
Yes  
Yes  
Yes  
Yes*  
Yes  
Yes  
Hong Kong  
Ireland  
Sweden  
Switzerland  
United Kingdom  
United States  
All Others  
How and When is Make Busy Activated?  
Make Busy versions of Modular Nest 9 and Modular Nest 21 backplanes (which  
install in a Modular Nest enclosure with card modems) come equipped with the  
Busy Out feature. This feature causes a Busy Out modem to “appear busy” to the  
central office when:  
• Power is disconnected from the Modular Nest enclosure  
• The modem card is not present in its slot  
Busy Out=ON (the option is set through the front panel menu, the AT ACU,  
or a network manager)  
Busy Out is intended for use with Model 3262 and 3267 dial modems. In some  
countries, it is also used in dial-restoral mode on Model 3263 and 3268 leased line  
modems.  
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Part No. TEL09949, Rev A  
June 2001  
Pre-Installation Information and Activities  
Page 9 of 34  
Make Busy backplanes are factory configured for Busy Out operation in their  
destination country, as indicated in Table 1 or Table 2.  
Table 1. Backplane Pin Settings for Busy Out, Modular Nest 9  
Pin Pair  
Function  
U. S. A. and Canada: Other UI Countries:  
No jumper connector Connected with jumper  
1
Left  
TIP and RING  
1
Right  
Make Busy and  
Make Busy 1  
Connected with jumper No jumper connector;  
not applicable  
1Inner backplane surface, as viewed from the rear of the Modular Nest.  
Table 2. Backplane Pin Settings for Busy Out, Modular Nest 21  
Pin Pair  
Function  
U. S. A. and Canada: Other UI Countries:  
1
Left  
Make Busy and  
Make Busy 1  
Connected with jumper No jumper connector;  
not applicable  
1
Right  
TIP and RING  
No jumper connector  
Connected with jumper  
1Inner backplane surface, as viewed from the rear of the Modular Nest.  
Warning  
Only qualified service personnel should remove pin jumpers. A qualified service  
person is one who is familiar with product operation, trained in the technology of  
electrically powered information processing and business equipment and adequately  
aware of the hazards associated with this equipment. Removal by unqualified  
personnel could result in personal injury or equipment damage, which could  
jeopardize your warranty and maintenance agreement. Users who are not qualified to  
perform this action themselves should contact Telenetics or an authorized distributor  
regarding available upgrade services.  
Seul un personnel qualifié est autorisé à enlever  
les cavaliers. Nous appelons qualifiée toute  
personne familière avec le fonctionnement du  
produit, ayant suivi une formation dans la  
technique du traitement de l’information et des  
équipements de bureau par système électrique et  
connaissant les dangers liés à ces équipements.  
Le recours à un personnel non qualifié pour cette  
opération risque d’entraîner des dommages  
corporels et matériels ainsi que l’invalidité  
éventuelle du contrat de garantie et de  
maintenance. Nous conseillons aux utilisateurs  
non qualifiés pour effectuer cette procédure de  
contacter Telenetics ou un distributeur agréé pour  
obtenir une liste des services de mise à jour  
disponibles.  
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Part No. TEL09949, Rev A  
June 2001  
Pre-Installation Information and Activities  
Page 10 of 34  
Kontaktstiftüberbrückungen sollten nur von  
qualifiziertem Kundendienstpersonal entfernt  
werden. Ein qualifizerter Kundendiensttechniker  
ist vertraut mit dem Betrieb des Produkts,  
ausgebildet für die Technologie der mit Strom  
versorgten Datenverarbeitung und  
Unternehmensgeräten sowie informiert über die  
Gefahren, die von diesen Geräten ausgehen  
können. Werden diese Komponenten von unqual-  
ifiziertem Personal entfernt, kann dies Verlet-  
zungen von Personen oder Geräteschäden zur  
Folge haben und Ihre Garantie- und Wartungsv-  
ereinbarung gefährden. Anwender, die keine  
Berechtigung zum Durchführen dieses Vorgangs  
besitzen, sollten Upgradedienste von Telenetics  
oder einem autorisierten Händler anfordern.  
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Part No. TEL09949, Rev A  
June 2001  
Pre-Installation Information and Activities  
Page 11 of 34  
Refer to Figure 2, which shows pin locations on Modular Nest 21 backplanes.  
Modular Nest 9s have a similar layout.  
Modem A  
Modem B  
Pins  
Jumpers on  
Left Pin Pairs  
Pins  
Modular Nest 21  
Enclosure, Rear View  
Figure 2. Modular Nest Backplane Pin Locations (Modular Nest 21  
Shown)  
Caution  
If you use a 3263 or 3268 (leased line with dial restoral) modem card with a Busy  
Out backplane, remove jumpers from all four pins, or the modem in that slot will not  
operate properly. These cards do not support Busy Out.  
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Part No. TEL09949, Rev A  
June 2001  
Pre-Installation Information and Activities  
Page 12 of 34  
Setting the Modem Card DIP Switch  
An 8-position DIP (Dual Inline Package) switch on the modem card functions the  
same as the rear panel DIP switch on stand-alone modems.  
The switches are numbered from left to right on the card (Figure 3). You must set the  
DIP switch before installing the card. Table 3 lists the switches and explains their  
use. Open (Off) is the factory default for the switches.  
The references “Modem A” and “Modem B” in refer to the dual modem capability of  
models 3262 and 3267. See “A/B Switching and the A/B LED.”  
NOTE: Switches 7 and 8 apply only to Models 3262 and 3267 (dial-only). Though  
Switches 7 and 8 appear on Models 3263 and 3268 (leased line with dial restoral),  
they are not connected and have no function.  
1 2 3 4 5 6 7 8  
Switches 7 and 8  
Apply to Models  
3262 and 3267  
(Dial Only)  
The factory default for the  
326X Series Modem  
switch is open (off).  
Front Panel  
Figure 3. Locating Eight-Position DIP Switch  
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Part No. TEL09949, Rev A  
June 2001  
Pre-Installation Information and Activities  
Page 13 of 34  
Table 3. Modem Rear Panel DIP Switch Functions  
Switch Number Setting  
Function  
1 (Modem A only)  
7 (Modem B only)  
Off  
EIA/TIA 232-D pin 23 is set for data rate input.  
Setting Switch 1 or 7 to this position has no  
effect on modem operation.  
On  
EIA/TIA 232-D pin 23 is set as a data indicator.  
2 (Modem A only)  
8 (Modem B only)  
Off  
Busy Out Select. A signal on EIA/TIA 232-D  
Pin 25 makes the modem appear busy to  
incoming calls.  
On  
Test Indicator Signal (V.24 Circuit 142) Select.  
The modem sends a signal to the terminal on  
EIA/TIA 232-D Pin 25 (V.24 Circuit 142) when  
a test is in progress.  
3 (Modems A and B) Off  
Front panel enable. The front panel functions  
normally.  
On  
Front panel disable. You can check only status  
displays. NOTE: If your modem is under remote  
configuration control by another 326XSeries  
Modem, the controlling modem retains front-  
panel control of your modem.  
4 (Modems A and B) Off  
Normal password protection applies.  
On  
This reinitializes the modem to its factory  
settings. Use this when you forget your  
password, to unlock the modem from password  
protection.  
5 (Modems A and B) Off  
AT and V.25 bis command sets can be used from  
an attached terminal.  
On  
AT and V.25 bis command sets cannot be used  
from an attached terminal. NOTE: If your  
modem is under remote configuration control by  
another 326X Series Modem, the controlling  
modem retains AT ACU control.  
6 (Modems A and B) Off  
Factory use only.  
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Part No. TEL09949, Rev A  
June 2001  
Pre-Installation Information and Activities  
Page 14 of 34  
Cabling the 3262 and the 3267 (Dual Dial) Modem Cards  
Refer to Figure 4 for cabling of 3262 and 3267 (dual dial) Modem cards. Interface  
and cabling pin-outs vary by country.  
Refer to the 326X Series Modem Users Guide, Appendix C, Country-Specific  
Information, for interface and cable pin-outs. For DTE and Network Control Port  
interface pin-outs, refer to Appendix B, Interface Pin-outs, of that guide.  
A8  
B8  
A6  
B6  
A4  
B4  
A2  
B2  
DIAL LINE A  
2W LEASE  
A9  
A7  
A5  
A3  
A1  
Ferrite bead (in countries  
that require it)  
DIAL LINE B  
2W/4W LEASE  
B9  
B7  
7
B5  
5
B3  
3
B1  
1
SLOT9  
8
6
4
2
To Dial Line  
or Leased Line  
for Modem A  
To Dial Line  
or Leased Line  
for Modem B  
A
DTE  
B
A
A
DTE  
B
A
A
A
DTE  
B
A
A
A
DTE  
DTE  
DTE  
DTE  
DTE  
DTE  
B
B
B
B
B
B
NC BUS  
To DTE  
for Modem A  
NC  
MSTR  
2
NC  
MSTR  
1
IN  
OUT  
OUT  
COMM +5V +12V -12V  
AC POWER  
To DTE B  
for Modem B  
Figure 4. Cabling the 3262 and the 3267 (Dual Dial) Modem Cards  
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Part No. TEL09949, Rev A  
June 2001  
Pre-Installation Information and Activities  
Page 15 of 34  
Cabling the 3263 and the 3268 (Leased Line, Dial Restoral) Modem  
Cards  
Refer to Figure 5 for cabling of 3263 and 3268 (leased line with dial restoral)  
Modem cards. Interface and cabling pin-outs vary by country.  
Refer to the 326X Series Modem Users Guide, Appendix C, Country-Specific  
Information, for interface and cable pin-outs. For DTE and Network Control Port  
interface pin-outs, refer to Appendix B, Interface Pin-outs, of that guide.  
A8  
B8  
A6  
B6  
A4  
B4  
A2  
B2  
DIAL LINE A  
2W LEASE  
A9  
A7  
A5  
A3  
A1  
Ferrite bead (in countries  
that require it)  
DIAL LINE B  
2W/4W LEASE  
B9  
B7  
7
B5  
5
B3  
3
B1  
1
SLOT9  
8
6
4
2
To Dial Line  
A
DTE  
B
A
A
DTE  
B
A
A
A
DTE  
B
A
A
A
To Leased Line  
DTE  
DTE  
DTE  
DTE  
DTE  
DTE  
B
B
B
B
B
B
NC BUS  
To DTE  
NC  
MSTR  
2
NC  
MSTR  
1
OUT  
IN  
OUT  
COMM  
+5V +12V -12V  
AC POWER  
Figure 5. Cabling the 3263 and the 3268 (Leased Line with Dial  
Restoral) Modem Cards  
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Part No. TEL09949, Rev A  
June 2001  
Pre-Installation Information and Activities  
Page 16 of 34  
Attaching Ferrite Beads (U.S.A., Canada, and Japan Only)  
A cable with an attached ferrite is included in the accessory kit for U.S.A., Canada,  
and Japan 326X Series Modem cards. In order to meet FCC Class A and CISPR  
requirements, the ferrite side of the dial and leased line cables must be attached as  
close to the backplane as possible (Figure 6).  
.
A8  
B8  
A6  
B6  
A4  
B4  
A2  
B2  
DIAL LINE A  
2W LEASE  
A9  
A7  
A5  
A3  
A1  
B1  
The ferrite side of the cable  
should be located on the end  
closest to the modem backplane.  
DIAL LINE B  
2W/4W LEASE  
B9  
B7  
7
B5  
5
B3  
3
SLOT9  
8
6
4
2
Ferrites  
Figure 6. Attaching Ferrite Bead to Cable  
Removing Audio Cable Connectors From a Modem Backplane  
For compliance with safety standards, audio connectors (for dial and leased line  
connections) on the 326X Series Modem backplane are recessed approximately  
4 cm behind the sheet metal on the backplane (Figure 7).  
Figure 7. Releasing Backplane Audio Connectors  
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Part No. TEL09949, Rev A  
June 2001  
Pre-Installation Information and Activities  
Page 17 of 34  
To release the connector:  
1) Insert a small screwdriver beneath the clip on the bottom of the  
connector (Figure 7).  
2) Press down on the screwdriver to release the clip and gently pull  
to remove the connector from its receptacle on the backplane.  
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Part No. TEL09949, Rev A  
June 2001  
Pre-Installation Information and Activities  
Page 18 of 34  
326X Series ModemCabling to a Network Manager  
This section describes how to set the 326X Series Modem backplane NMS Bus DIP  
switches for network management. It also describes the proper sequence for  
connecting to a Network Management System (NMS).  
When cabling 326X Series Modem enclosure cards to a network manager:  
• The network control (NC) master is a modem that receives network  
management polls and responds over the digital NC interface. NC polls are  
generated by the manager and passed to the local or remote site. NC responses  
are generated:  
- By the modems at the local site and passed to the manager site  
- By the modems at the remote site and passed to the manager site  
• The NC slave is a modem that receives NC polls and responds over the audio  
interface (dial or leased line).  
• When you divide an enclosure into groups, each group represents a single NC  
channel. The enclosure can operate with some slots empty, but at least one  
card must be in the “master slot” of each group to allow NC signaling for  
other slots in that group. The master slot corresponds to the NC IN/NC OUT  
connectors.  
The network manager regards all 326X Series Modems included in a group and their  
associated slaves as operating on a single NC channel. For proper network  
management operation on a single NC channel, each modem and its associated  
slaves must have a unique NC address. The total number of 326Xs on one NC  
channel must not exceed the maximum number of devices per channel supported by  
the network manager. See your NMS documentation for details.  
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Part No. TEL09949, Rev A  
June 2001  
Pre-Installation Information and Activities  
Page 19 of 34  
Figure 8 shows a single NC command flow path. In the figure, the local masters  
receive network control from a single network manager source.  
Modular Nest 9 or 21 Enclosure  
Backplane  
Modular Nest 9 or 21 Enclosure  
Backplane  
Network  
Manager  
In-Connector  
from Backplane:  
Not Used.  
Remote  
Slave  
Local  
Master  
Local  
Slave  
In-Connector  
from Backplane.  
For Any  
Daisy-Chained  
Device.  
For Any  
Daisy-Chained  
Device.  
Remote  
Master  
Digital NC Bus  
Notes: (1) The dotted lines indicate the NC command flow path.  
Out-Connector  
from Backplane.  
Out-Connector  
from Backplane.  
(2) The network manager regards all 326X Series Modems in a  
group and their associated slaves as operating on a single NC channel.  
Figure 8. Leased or Dial Line Network Managed Command Flow Path  
Each 326X Series Modem backplane provides network control (NC) ports for  
connection to a Network Manager:  
• The 21-card backplane has four NC ports (NC 1 - NC 4)  
• The 9-card backplane has two NC ports (NC 1 and NC 2)  
• The 1-card backplanes each have one NC port  
With the 1-card backplane, the NC port is only for the modem occupying that slot,  
but with the 9-, and 21-card backplanes, one NC port is assigned to serve a group of  
4, 5, or 6 modem cards as outlined in Table 4.  
Table 4.  
Number of Groups vs. Number of Modem Cards per Slot  
Backplane  
Size  
Number of  
Groups  
Number of Modem Cards in a  
Group  
1 Card  
1
2
4
1
9 Card  
5 and 4  
21 Card  
5, 5, 5, and 6  
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Part No. TEL09949, Rev A  
June 2001  
Pre-Installation Information and Activities  
Page 20 of 34  
A group’s network management signaling is passed along a multi-drop bus in the  
backplane to each NC port. One slot of each group is the Bus Master slot (NC 1 for  
group 1, NC 2 for group 2, etc.). The group number is identified by the Bus Master  
slot number (e.g., Group 1 uses Bus 1 Master slot). For a group’s NC port to work, its  
Bus Master slot must be occupied. Figures 9 and 10 show this for each backplane.  
1-Card  
Backplane  
1-Card  
Backplane  
1-Card  
Backplane  
9-Card  
Backplane  
Filler  
Panels  
OUT  
OUT  
OUT  
NC BUS  
NC  
MSTR  
2
NC  
MSTR  
1
OUT  
IN  
OUT  
NC  
IN  
NC  
IN  
NC  
IN  
COMM  
+5V +12V -12V  
AC POWER  
NC Port and Bus Master Slots  
Are within Shaded Areas  
Network Control Group 1Network Control Group 2  
Figure 9. NC Port and Bus Master Locations, and Groups  
(1- and 9-Card Backplanes)  
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Part No. TEL09949, Rev A  
June 2001  
Pre-Installation Information and Activities  
Page 21 of 34  
NC Port and Bus Master Slots  
Are within Shaded Areas  
NC BUS  
NC BUS  
NC BUS  
NC  
MSTR  
2
NC  
MSTR  
2
NC  
MSTR  
2
NC  
MSTR  
IN  
OUT  
IN  
OUT  
IN  
OUT  
OUT  
1
+5V +12V -12V  
COMM  
AC POWER  
Network Control Group 4 Network Control Group 3  
Network Control Group 2  
Network Control Group 1  
Figure 10. NC Port Locations, Bus Master Locations, and Groups  
(21-Card Backplane)  
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Part No. TEL09949, Rev A  
June 2001  
Pre-Installation Information and Activities  
Page 22 of 34  
Setting Control Across Groups  
You can use cables to daisy-chain NC ports on 326X Series Modem cards, as you can  
with stand-alone modems. With 9- and 21-card backplanes, you can also set NMS  
Bus DIP switches on the backplane so that all NC signaling is bussed to one NC Port.  
To bus two or more groups’ NC signaling to one NC Port using Bus DIP switches:  
• Groups must be contiguous (Group 3 to Group 2 to Group 1)  
• The NC port you plan to use must be the lowest-numbered NC port, and it  
must have its Bus Master slot occupied  
• The NMS Bus DIP switch between groups whose signals are to be bussed to a  
common NC port must have all six positions set to the low number (if all six  
positions are set to the high number, daisy-chaining is disabled)  
Caution  
Do not mix switch settings to high and low numbers. This causes interference with  
Network Control signaling.  
Example  
For example, to bus signals from group 2 to group1’s NC port:  
1) Ensure that Bus 1 Master slot is occupied. Other slots in groups 1  
and 2 need not be (because the backplane uses a “multi-drop bus,”  
successful bussing of NC signaling along the backplane takes place  
even when slots are unoccupied).  
2) On the backplane, locate the NMS Bus DIP switch between Bus 1  
Master slot and Bus 2 Master slot (Figure 11). Set all six NMS Bus  
DIP switches to 1.  
3) Connect the network management cable (supplied with your  
network manager) from the Bus 1 Master slot NC IN port to the  
network manager.  
Figure 11 illustrates this example.  
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Part No. TEL09949, Rev A  
June 2001  
Pre-Installation Information and Activities  
Page 23 of 34  
A8  
B8  
A6  
B6  
A4  
B4  
A2  
B2  
DIAL LINE A  
2W LEASE  
A9  
A7  
A5  
A3  
A1  
DIAL LINE B  
2W/4W LEASE  
B9  
B7  
7
B5  
5
B3  
3
B1  
1
SLOT9  
8
6
4
2
Bus Master  
Switch  
A
DTE  
B
A
A
A
A
A
A
A
A
DTE  
B
DTE  
DTE  
DTE  
DTE  
DTE  
DTE  
DTE  
B
B
B
B
B
B
B
NMS BUS  
2
1
1
1
1
1
1
2
2
2
2
2
NC BUS  
NC  
MSTR  
2
NC  
MSTR  
1
OUT  
IN  
OUT  
NC Port and  
COMM  
+5V +12V -12V  
AC POWER  
Bus Master Locations  
Are within Shaded Areas  
Figure 11. Combining NC Ports With Backplane NMS Bus DIP Switches  
Cautions and Limitations for Network Management Cabling  
The enclosure daisy-chain (leased line) interface and the multi-drop (dial line) bus  
features do not support certain NC cabling applications.You can connect multiple  
NC Master modems to operate in a daisy-chain or operate in a multi-drop bus  
configuration. However, there can be only one NC slave configured in an enclosure  
multi-drop bus group or daisy-chain.  
Check your NMS documentation for the maximum number of modems per channel.  
Do not bus more modem NC signals to a single NC port than the network manager  
can handle on a single channel.  
Some applications require multiple NC slaves in an enclosure using the multi-drop  
NC bus. In this case, use the larger backplanes to accommodate multiple groups. For  
example, one NC slave is allowed for each group. For the number of groups that  
each backplane can accommodate and the number of modem cards in those slots,  
refer to Table 4.  
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Part No. TEL09949, Rev A  
June 2001  
Pre-Installation Information and Activities  
Page 24 of 34  
If the application requires more NC slaves than the larger backplanes have groups,  
connect multiple backplanes in the enclosure using the 1-card backplane.  
When combining backplanes in an enclosure, one modem card slot is lost for each  
type of backplane that is used. For example, two 9-modem card backplanes in an  
enclosure occupy 19 slots. Therefore, two 9-modem card backplanes and one 1-  
modem card backplane results in the use of only 19 326Xs in a 21-modem card  
enclosure. The maximum number of backplanes that can be combined in a 21-  
modem card enclosure is 11 1-modem card backplanes.  
Daisy-Chaining NC Ports: Card Modems to Stand-alone Modems  
When daisy-chaining NC ports between a modem card and a stand-alone modem, be  
aware of the following condition.  
If a 326X Series Modem card is located between a Network Manager and a  
stand-alone modem, the modem must have software revision level 3.0 or higher  
326X Series Modem Card in Enclosure  
Network  
Manager  
(Must Have Revision 3.0 Software or Higher)  
326X Series  
Stand-alone Modem  
OUT IN  
NC  
NC  
OUT IN  
Figure 12. Daisy-Chaining NC Ports: Enclosure Between Network  
Manager and Stand-Alone  
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Part No. TEL09949, Rev A  
June 2001  
Pre-Installation Information and Activities  
Page 25 of 34  
There are two ways to determine your modem’s software revision number.  
From the modem front panel:  
1) Press the appropriate front panel control key (from your location in the  
configuration menu structure) until the following (for example) appears:  
Data 9600 T/D?  
2) Press  
until the Operating Status appears (for example):  
DTE 19.2 RELIABL  
3) Press  
until the following appears:  
Display Modem ID  
4) Press . The following appears:  
SWPart=xxxxxxxx  
The rightmost two digits indicate the software revision level. Ensure that they are  
“30” (meaning software revision level 3.0) or higher.  
Using an AT Command:  
Enter AT&IO from the control terminal. The 8-digit software part number appears.  
The software revision number is indicated by the rightmost two digits.  
If a stand-alone modem is located between a Network Manager and a card modem,  
software revision levels are not an issue. Figure 13 illustrates this condition.  
326X Series Modem Card in Enclosure  
Network  
Manager  
(Must Have Revision 3.0 Software or Higher)  
326X Series  
Stand-alone Modem  
OUT IN  
NC  
NC  
OUT IN  
Figure 13. Daisy-Chaining NC Ports: Stand-Alone Between Network  
Manager and Enclosure  
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Part No. TEL09949, Rev A  
June 2001  
Pre-Installation Information and Activities  
Page 26 of 34  
Preparing the 9110 DMS for 326X Series Card Modems  
When managing 326X Series Modems in an enclosure using the 9110 Dial  
Management System (DMS), set the Use option (in the 9110 Comm Port Definition  
screen) to Complete. This configures the 9110 to poll all modems (see “Polling” in  
Chapter 1 of the 9110 DMS User's Guide) even if one modem is not responding.  
Change the Use option to Complete as follows:  
1) Shut down the 9110.  
2) Start up the Setup Program, log on, and select the Setup File Editor  
Option.  
3) Open SETUP.WIN from the File menu.  
4) Select Edit from the Comm menu. The Comm Port List Window is  
displayed.  
5) Select a Comm port that is cabled to a 326X Series modem enclosure.  
6) Select the Use option and select Complete in the popup window. Ensure  
the setting next to Use changes to Complete.  
7) Press F1 to save the change in memory.  
8) Repeat Steps 4 through 7 for each Comm port cabled to a 326X Series  
modem enclosure.  
9) Select Save from the File menu and save SETUP.WIN.  
10)Exit the Setup Program and restart the 9110.  
326X Modem Card Power Supply Requirements in 21-Card  
Enclosure  
If you are using more than nine 326X cards in a Modular Nest 21 enclosure, you  
must have two power supplies. A third power supply can be added for redundancy.  
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Part No. TEL09949, Rev A  
June 2001  
Removing and Installing a Backplane in Modular Nest 9 or 21 Enclosure  
Page 27 of 34  
Removing and Installing a Backplane in Modular Nest 9 or 21  
Enclosure  
This section explains how to remove and install a 326X backplane attached to a  
Modular Nest 9 and 21 enclosure. Use this information with the Modular Nest 9 and  
21 Installation and Operation Guide (Part No. TEL–09564).  
Warning  
Only qualified service personnel should perform the procedure described in this  
section. Use of this procedure by unqualified personnel could result in personal  
injury or equipment damage, and could jeopardize your warranty and maintenance  
agreement.  
Seules des personnes qualifiées peuvent mettre  
en pratique les procédures décrites dans cette  
section. Dans le cas contraire, des risques de  
blessures ou d’endommagement du matériel  
sont possibles, ce qui pourrait annuler votre  
garantie et votre contrat de maintenance.  
Die in diesem Abschnit aufgeführten Vorgänge  
sollten ausschließlich von geschultem und  
qualifiziertem Servicepersonal durchgeführt  
werden. Wenn diese Vorgänge von  
unqualifiziertem Personal durchgeführt  
werden, kann dies zu Personenschäden oder  
einer Beschädigung des Gerätes führen und  
darüber hinaus Ihren Anspruch auf  
Garantieleistung und Kundendienst gefährden.  
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Part No. TEL09949, Rev A  
June 2001  
Removing and Installing a Backplane in Modular Nest 9 or 21 Enclosure  
Page 28 of 34  
Removing a 326X Backplane  
Caution  
Power down the unit before you begin.  
To remove a backplane from a Modular Nest 9 or 21 enclosure (Figure 14):  
1) Ensure that the enclosure is powered down.  
2) Remove all cards from the front of the enclosure.  
3) Using a flat-blade screwdriver, unfasten the backplane connectors.  
4) Pushing up from beneath the connectors near the top of the  
backplane, lift the backplane vertically, very slightly, to disconnect it  
from the power distribution connector (A).  
5) Tilt the top of the backplane away from the enclosure (B), and  
remove the backplane (C).  
6) Power up the enclosure.  
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Part No. TEL09949, Rev A  
June 2001  
Removing and Installing a Backplane in Modular Nest 9 or 21 Enclosure  
Page 29 of 34  
B
Push and Turn in  
Direction of Arrow  
A
Avoid Bending  
These Male Pins  
Figure 14. Removing a 326X Backplane  
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Part No. TEL09949, Rev A  
June 2001  
Removing and Installing a Backplane in Modular Nest 9 or 21 Enclosure  
Page 30 of 34  
Installing or Replacing a 326X Backplane  
Caution  
Power down the unit before you begin.  
To install or replace a backplane in a Modular Nest 9 or 21 enclosure (Figure 14):  
1) Ensure the enclosure is powered down.  
2) Using the alignment guides on the backplane and enclosure to line up  
the backplane between the screw holes on the top and bottom of the  
enclosure, first insert the bottom of the backplane (A), and then rotate  
the top of the backplane into position (B). Do not to bend any pins on  
the connector.  
3) Push down slightly on the base of the backplane (C), ensuring that the  
backplane connectors are aligned.  
4) Using a flat-blade screwdriver, secure the backplane to the enclosure  
with the fasteners supplied. Fasten the base first, then the top.  
5) Remove all cards and power supplies from the front of the enclosure.  
6) Set an Ohm-meter a minimum 20 range. Measure the resistance  
between the following pairs of J2 test-connector pins:  
Pin  
Description  
Digital ground  
Pin  
Description  
1
4
+5V  
1
1
4
4
5
Digital ground  
Digital ground  
+5V to  
5
6
5
6
6
+12V  
-12V  
+ +12V  
-12V  
+5V  
+12V  
-12V  
• If all readings register as open circuits, the backplane connectors are not  
short-circuited. Go on to the next step.  
• If any reading registers resistance, the backplane connectors are short-  
circuited. Remove the backplane (using the procedure above), and  
carefully straighten any bent or broken pins. Reinsert the backplane  
(using this procedure).  
If you cannot resolve a problem, call the Telenetics Customer Support  
Center.  
7)Re-install the cards and power supplies that were removed when you  
removed the backplane.  
8)Power up the enclosure.  
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Part No. TEL09949, Rev A  
June 2001  
Removing and Installing a Backplane in Modular Nest 9 or 21 Enclosure  
Page 31 of 34  
A
Push and Turn in  
Direction of Arrow  
B
Figure 15. Installing or Replacing a 326X Backplane  
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Part No. TEL09949, Rev A  
June 2001  
Removing and Installing a Backplane in Modular Nest 9 or 21 Enclosure  
Page 32 of 34  
Index  
Numerics  
3262 5, 8, 12, 14, 15  
3263 5, 8, 11, 15  
3267 5, 8, 12, 14, 15  
3268 5, 8, 11, 15  
9110 DMS and the 326X Series Modem 26  
A
A/B LED 6  
A/B switching 6  
ALM LED 6  
audio cables 5  
audio connector 16  
Australia 8  
Avertissement 3, 4  
B
backplane jumper 7  
backplane, modem card 5  
backplane, Modular Nest 11  
Belgium 8  
Bus Master slots 19  
Busy Out 7, 8, 11  
busy out backplanes  
and supported countries 7  
C
cable clam p5  
cables 5  
cabling 14, 15  
card models to a network manager 19  
models 3262/3267 14  
Canada 5, 8, 16  
card modem 6  
Caution 11  
central office 8  
CISPR 16  
connecting port Warning 3  
D
daisy-chaining NC (network control) signals 24  
Denmark 8  
dial restoral 5  
DIP switch  
modem card 12  
Dual Inline Package (DIP) switch 12  
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Part No. TEL09949, Rev A  
June 2001  
Removing and Installing a Backplane in Modular Nest 9 or 21 Enclosure  
Page 33 of 34  
E
EN60950 3  
F
FCC 16  
FCC Part 68 7  
ferrite 5, 14, 15, 16  
ferrite cable  
attaching to card models 16  
front panel 6  
H
Hong Kong 7, 8  
I
installation warning 4  
interface 14, 15  
Ireland 8  
J
jack 7  
Japan 5, 16  
jumper 7, 11  
L
leased line 5  
LED 6  
LEDs  
A/B 6  
ALM 6  
ALM LED 6  
lightning 4  
M
Make Busy 8  
modular connector block 5  
Modulus 9 and 21 enclosure 2, 8  
N
NC (network control)  
card groupings for NC signal bussing 19  
ports 19  
signal bussing 19  
signal daisy-chaining 24  
network manager  
cabling card models to 19  
configuring 9110 DMS for 326X Series Mode m26  
P
power 8  
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Part No. TEL09949, Rev A  
June 2001  
Removing and Installing a Backplane in Modular Nest 9 or 21 Enclosure  
Page 34 of 34  
R
ringer equivalence number (REN) 7  
S
safety information 3  
safety standard 16  
SELV 3  
slot 5  
stand-alone modem 6  
surge 4  
Sweden 8  
Switzerland 8  
T
TBTS 3  
test mode 6  
U
U.S.A. 5, 8, 16  
United Kingdom 7, 8  
Universal International 7  
USOC 7  
W
Warning 3  
Warnung 3, 4  
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