Lathem Clock ATX6 User Manual

Model ATX6  
Wireless Wall Clock Transceiver  
Installation & User's Guide  
Copyright © 2009 Lathem Time Corporation. All rights reserved.  
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Table of Contents:  
Introduction:............................................................................ 1  
Case Design ............................................................................. 2  
Installation: ............................................................................. 2  
ATX6 Quick Reference Guide ......................................................... 6  
Date/Time Set-Up:..................................................................... 7  
P
1
2
3
4
5
Awaiting Password  
Month (01 ~ 12) ............................................................ 7  
(000 ~ 999) .................................. 7  
Date  
Year  
(01 ~ 31)............................................................ 7  
(00 ~ 99)............................................................ 7  
Hours (00 ~ 12 AM/PM).................................................... 8  
Minutes (00 ~ 59)............................................................ 8  
Parameter Set-Up: ..................................................................... 8  
P
Awaiting Password  
(000 ~ 999) .................................. 8  
6
7
8
9
Time Zone (-12 ~ +12) ...................................................... 9  
Time Reference Source (rtc, GPS, Air, 485, ............................. 9  
Spring DST Month: (00 ~12) ................................................ 9  
Spring DST Week: (1,2,3,4,L) ............................................ 10  
Fall DST Month: (00 ~12) ................................................. 10  
Set Fall DST Week: (1,2,3,4,L)........................................... 10  
12/24hr Display (12 / 24) ................................................. 10  
AirTime Radio UHF Channel (1~8)........................................ 10  
Time Slot: (A or 0~9)....................................................... 11  
RC Emulation (0/1)....................................................... 11  
UHF Power Level (Lo / Hi) ............................................... 12  
Sync Pulse Hrs (00 ~ 12 AM/PM).......................................... 12  
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
P
Sync Pulse Mins  
(00 ~ 59) ............................................ 12  
External Amplifier (0 ~ 1)............................................... 12  
Password (000 ~ 999) ...................................................... 13  
Operating Modes:...................................................................... 14  
Normal:............................................................................. 14  
AirTime Transmit Mode:.......................................................... 15  
Receive Mode: ..................................................................... 16  
RC Transmit: ....................................................................... 17  
Firmware Version Number Display: ................................................. 17  
Battery Replacement: ................................................................ 17  
Installation Examples .............................................................................18  
Wiring Diagrams ....................................................................... 20  
Synchronizing the ATX6 to Lathem’s AirTime TimeSync Software.............. 20  
Synchronizing the ATX6 to the ATX6-GPS Receiver............................... 20  
Synchronizing a LTRX-512 to an ATX6 using RS485................................ 21  
Synchronizing the ATX6 from a LTRX-512.......................................... 21  
Synchronizing a LTR0 or DWA-S to an ATX6........................................ 22  
Synchronizing a DDC2/4-RS to an ATX6............................................. 22  
Synchronizing the ATX6 to a LTR-GPS .............................................. 23  
Synchronizing a LTRX-512 to ATX6 using Sync Relay closure .................... 24  
Synchronizing the ATX6 to an External Relay Closure............................ 25  
Specifications.......................................................................... 26  
Warranty................................................................................ 27  
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ATX6 Installation and User Guide  
Introduction:  
Lathem’s ATX6 is a Wireless Transceiver that can function in both  
“Master” (Primary), and “Repeater” (Secondary) modes.  
In “Master” mode, the ATX6 can wirelessly transmit clock  
synchronization signals to Lathem AT series Wall Clocks, to other  
Lathem ATX-series Transceivers in Repeater mode and to Lathem RC  
Series Wall Clocks. It can provide RS485 Wired synchronization signals  
to Lathem LTRx-512 and LTR-0 Master Clocks and to DWA-S Bell  
Ringers. It can also provide a “Dry-Contact” closure to synchronize  
other timekeeping systems.  
As a “Master”, the ATX6 can synchronize its internal crystal-controlled  
Real-Time-Clock to “Atomic” references that include GPS and Network  
Time Servers and other system references.  
In “Repeater” mode, the ATX6 can receive and synchronize itself to  
another ATX series Transceiver in Master mode and re-broadcast the  
signal according to the AirTime Protocol, same as described above in  
“Master” mode.  
The ATX6 can be set to transmit its radio signal at any of several  
frequencies licensed to Lathem’s AirTime system by the FCC, at either  
a 4 Watt or 6 Watt output power level. With an optional external  
amplifier that can boost the signal to 20 Watts.  
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ATX6 Installation and User Guide  
Case Design  
Metal Enclosure  
LCD  
Function Buttons  
INC NXT SET  
TRNS RECV RC  
RS485  
+ -  
RS232  
Bottom View  
Ext. Sync  
GPS  
Installation:  
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ATX6 Installation and User Guide  
1. Choose an appropriate location to install the ATX6 on a wall.  
a. If you intend to use the ATX-GPS accessory to  
synchronize the ATX6, then a site should be selected  
that is within the 25-foot cable limit of the ATX-GPS to  
a window or skylight having an unobstructed view of  
the sky.  
b. If the ATX6 will be used in synchronizing a wide area /  
campus, then the site should, generally, be close to the  
center of the facility; rather than at the perimeter.  
c. If you intend to synchronize the ATX6 to an ATX  
Transceiver in Master mode then select a site within  
approximately 130 feet from where the ATX  
Transceiver will be located..  
2. If synchronizing another system to the ATX6, or if  
synchronizing the ATX6 to another system via “Dry Contact”  
(Relay) Closure, install the shunt jumper onto the circuit  
board’s J7 Pins, according to the following diagrams:  
CAUTION: Make sure the AC Power Cord is unplugged before  
opening the ATX6 enclosure  
To access the jumpers, remove the two screws from top case  
cover.  
Carefully slide the front panel assembly up until the jumper’s  
location is accessible.  
Change the jumper settings as needed  
Slide the front panel assembly back into place and secure the  
top case cover.  
3. Mount the ATX6 on a suitable wall, according to the following  
steps.  
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ATX6 Installation and User Guide  
If mounting near a ceiling, make sure the top holes are at  
least 2” away from the ceiling.  
If an external amplifier will be used, mount the ATX6 within 6  
feet of its location.  
» After deciding the location where the clock will be mounted,  
use the enclosed template to make the three marks for the  
mounting screws.  
» Drill a 5/16" hole at each of the marks  
» Insert a wall anchor in each hole and tap it flush to the wall  
with the hammer.  
» Insert a screw into the top two wall anchors leaving 1/8"  
exposed.  
» Line up the two keyholes on the back of the case and slip over  
the two screws.  
» The lower mounting screw can now be inserted into the wall  
anchor and secured.  
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ATX6 Installation and User Guide  
4. Attach the UHF Antenna to the ATX6’s BNC Connector and  
place it on top of the ATX6 or on a shelf within 12 feet.  
If an external amplifier is used, attach the amplifiers cable to  
the “RF IN” BNC connecter and to the BNC connector on the  
ATX6. Connect the antenna to the “ANT” BNC connector and  
place the antenna in the desired location. Refer to function 19  
of the setup on page 12, this function must be enabled when  
using an amplifier.  
For best performance, mount the antenna in a vertical position  
not horizontal  
5. If synchronizing the ATX6 to an ATX-GPS, attach the cable to  
the RJ-45 Modular Jack, and mount the ATX-GPS according to  
the instructions included in its package.  
6. If synchronizing the ATX6 to a Lathem Master Clock or LTR-GPS,  
or if synchronizing a Lathem Master Clock or DWA-S to the ATX6  
via RS-485, install a Cat-3 or Cat-5 (UTP) Cable between the  
Terminal Block connections on the ATX6 and the connections on  
the other unit, taking note of signal polarity: plus to plus /  
minus to minus.  
7. If synchronizing the ATX6 to Lathem’s AirTime TimeSync  
Software using an Ethernet to RS232 Adapter (Lathem part #  
TXTOSER) and cable, install the Ethernet to RS232 Adapter  
according to the instructions included with its package.  
Install and execute the AirTime TimeSync Software according  
to the instructions included with its package.  
8. If synchronizing another system to the ATX6, or if synchronizing  
the ATX6 to another system via “Dry Contact” (Relay) Closure,  
install a Cat-3 or Cat-5 (UTP) Cable between the Terminal  
Block connections on the ATX6 and the connections on the  
other unit.  
9. If synchronizing another system to the ATX6 using the Remote  
Wireless Relay Option, install the Wireless Relay at the remote  
location, according to the instructions in its package.  
10. Connect the ATX6 to an AC Power Outlet using the integral  
cable.  
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ATX6 Installation and User Guide  
Apply a minimum of 3.5 to 4.5 lb-in torque for tightening field wires  
into the terminal blocks. Use Cat-3 or Cat-5 Twisted-Pair Wires Use  
only Copper Wire.  
ATX6 Quick Reference Guide  
Date/Time Settings (NXT & SET)  
#
P
1
2
3
4
5
Parameter  
Awaiting Password:  
Month:  
Date:  
Year:  
Hours:  
Minutes:  
Range of Values  
(000 ~ 999)  
(01 ~ 12)  
(01 ~ 31)  
(00 ~ 99)  
(00 ~ 12 AM/PM)  
(00 ~ 59)  
Parameter Settings (INC & NXT)  
#
P
6
7
8
9
Parameter  
Awaiting Password  
Time Zone:  
Time Source:  
Spring DST Month:  
Spring DST Week:  
Range of Values  
(000 ~ 999)  
(-12 ~ +12)  
(rtc, GPS, Air, Syn, 485, PcL)  
(00 ~12)  
(1,2,3,4,L)  
10 Fall DST Month:  
11 Set Fall DST Week:  
12 12/24hr Display:  
(00 ~12)  
(1,2,3,4,L)  
(12 / 24)  
13 AirTime Radio Channel:(1~8)  
14 Time Slot:  
(A or 0~9)  
(0/1)  
(Lo / Hi)  
(00 ~ 12 AM/PM)  
(00 ~ 59)  
(0 ~ 1)  
15 RC Emulation:  
16 UHF Power Level:  
17 Sync Pulse Hrs:  
18 Sync Pulse Mins:  
19 External Amplifier  
P
Set Password:  
(000 ~ 999)  
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ATX6 Installation and User Guide  
Date/Time Set-Up:  
To enter the Date/Time Set-Up Mode, simultaneously press the Center  
(NXT) and Right (SET) buttons for 1 second. You will see the Password  
prompt: “P000”. For each of the following parameters to be set, the  
display will show the parameter number in the two left digit positions,  
and the parameter value in the two right digit positions. The  
parameters are as follows:  
P
Awaiting Password  
(000 ~ 999)  
If you have not previously changed the password, press the SET button  
to continue [Default Password is ‘000’]. If you have previously changed  
the Password, enter the value using the INC, NXT and SET buttons. The  
INC button will increment the digit over the displayed cursor. The NXT  
button will move the cursor to point to the next digit. The SET button  
will enter your final selection. If correct, the display will advance to  
enter the first set-up parameter.  
If incorrect, an “Err” message will be displayed. Press the Set button  
to re-enter your password. Press Inc or Next to abort the setup.  
1
Month  
(01 ~ 12)  
Use the INC button to advance through the values. Press the SET button  
when the correct value is displayed.  
2
Date  
(01 ~ 31)  
Use the INC button to change the first digit. Press NXT to move the  
cursor to the next digit, then press INC to change the selected digit.  
Press the SET button when the correct value is displayed.  
If an incorrect value is entered “Err2” will be displayed. Press the Set  
button and reenter the date  
3
Year  
(00 ~ 99)  
Use the INC button to change the value of the first digit. Press NXT to  
move the cursor to the next digit, then press INC to change the  
selected digit. Press the SET button when the correct value is  
displayed.  
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ATX6 Installation and User Guide  
4
Hours  
(00 ~ 12 AM/PM)  
Use the INC button to advance through the values. Advancing past ‘11’  
will also toggle the AM and PM indicators. Press the SET button when  
the correct value is displayed.  
5
Minutes  
(00 ~ 59)  
Use the INC button to change the value of the first digit. Use the NXT  
button to move the cursor to the next digit, and then use the INC  
button to change the selected digit. Press the SET button when the  
correct value is displayed.  
Press SET after this step to set seconds to :00. For the most precise  
manual time setting, increment the displayed value to represent the  
up-coming minute. Then, at the start of the new minute, press the SET  
button to record the programmed MM-DD-YY HH:MM:00.  
Parameter Set-Up:  
To enter the Parameter Set-Up Mode, simultaneously press the Left  
(INC) and Center (NXT) buttons for 1 second. You will see the Password  
prompt: “P000”. For each of the following parameters to be set, the  
display will show the parameter number in the two left digit positions,  
and the parameter value in the two right digit positions. The  
parameters are as follows:  
P
Awaiting Password  
(000 ~ 999)  
If you have not previously changed the password, press the SET button  
to continue [Default Password is ‘000’]. If you have previously changed  
the Password, enter the value using the INC, NXT and SET buttons. The  
INC button will increment the digit over the displayed cursor. The NXT  
button will move the cursor to point to the next digit. The SET button  
will enter your final selection. If correct, the display will advance to  
enter the first set-up parameter.  
If incorrect, an “Err” message will be displayed. Press the Set button  
to re-enter your password. Press Inc or Next to abort the setup.  
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ATX6 Installation and User Guide  
Time Zone (-12 ~ +12)  
6
Use the INC button to advance through the values. Advancing past ‘11’  
will also toggle the ‘+’ and ‘-‘indicators. The most common Western  
Hemisphere values (offsets from GMT / UTC) are:  
Atlantic Time  
Eastern Time  
Central Time  
Mountain Time  
Pacific Time  
Alaska  
-04  
-05  
-06  
-07  
-08  
-09  
-10  
Hawaii  
Press the SET button when the correct value is displayed  
7
Time Reference Source (rtc, GPS, Air, Syn, 485, PcL)  
Use the INC button to advance through the values. Select which Time  
Reference is to be used by the ATX6. Press the SET button when the  
correct value is displayed.  
rtc  
GPS  
Air  
Real-Time-Clock, set in parameters # 1 through 5  
External ATX-GPS Receiver option  
Another ATX-series Transceiver  
Syn  
Synchronize to an external Relay closing for 1 second at  
00:00:00  
485  
PcL  
Sync from a Lathem LTRx-series Master Clock or LTR-GPS  
Sync from a PC using Lathem’s AirTime TimeSync, via Ethernet  
to RS232 (with external Adapter)  
8
Spring DST Month:  
(00 ~12)  
Use the INC button to advance through the values. Default value is ‘03’  
(March). Selecting ‘00’ will disable automatic DST adjustment and  
settings 9,10 and 11. Press SET when the correct value shows.  
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ATX6 Installation and User Guide  
9
Spring DST Week:  
(1,2,3,4,L)  
Use the INC to select which Sunday of month that Daylight Savings Time  
begins: 1st, 2nd, 3rd, 4th or Last Sunday of month. Default is ‘02’ (2nd  
Sunday in March). Press SET when the correct value is displayed.  
10  
Fall DST Month:  
(00 ~12)  
Use the INC button to advance through the values. Default value is ‘11’  
(November). Choose ‘00’ to disable automatic DST adjustment. Press  
SET when the correct value shows  
11  
Set Fall DST Week:  
(1,2,3,4,L)  
Use the INC button to select which Sunday of month that Daylight  
Savings Time ends: 1st, 2nd, 3rd, 4th or Last Sunday of month. Default is  
‘01’ (1st Sunday in November). Press SET when the correct value shows.  
12  
12/24hr Display  
(12 / 24)  
Use the INC button to toggle between selection of a 12-hour display  
with AM/PM indicators, or a 24-hour (Military Time) display (00:00 ~  
23:59). Press SET when the desired value shows.  
13  
AirTime Radio UHF Channel (1~8)  
The ATX6 is pre-loaded with the multiple Frequency selections:  
Use the INC button to select the frequency channel for your  
installation; default is ‘1’. Do not change unless AirTime system  
components have been specifically ordered for a different  
frequency. Press SET when the correct value shows.  
Page 10  
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ATX6 Installation and User Guide  
14 Time Slot: (A or 0~9)  
To support systems that include multiple Transceivers using the same  
Frequency Channel, AirTime Transceivers can automatically determine  
their position in a network of transceivers. In most cases, the ATX6 will  
determine its own position by listening to transmissions from other  
Transceivers in the area. To select this feature, set the parameter  
value to Automatic.  
In installations with an ATX Transceiver receiving the time from WWVB  
and transmitting it to multiple ATX6’s or a combination of ATX6’s and  
ATX Repeaters, Channel Interference may be avoided by setting  
specific “Transmission Slots” for each Transceiver. The ATX and ATX6  
Transceivers can be set to transmit on one of ten Transmission Slots,  
numbered 0 through 9. When manually selecting a Transmission Slot  
following this chart will often provide the best results:  
Recommended Parameter # 14 Setting for each device  
#of ATX  
Transceivers  
Device Device Device Device Device Device  
#1  
#2  
#3  
#4  
#5  
#6  
1
2
3
4
5
6
5
2
1
1
1
0
7
5
3
3
2
8
5
5
4
7
7
6
9
8
9
Fixed positions are numbered 0 ~ 9, and may be selected using the INC  
button. Press the SET button when the correct value is displayed  
15  
RC Emulation  
(0/1)  
Use the INC button to toggle between Enabling (‘1’) and Disabling (‘0’)  
the transmission of radio signals to synchronize Lathem’s RC-series Wall  
Clocks. If there are no RC-series Wall Clocks in the system, or if they  
are to be controlled by a separate RC-MASTER, then RC Emulation  
should be disabled. Press SET when the correct value shows.  
Page 11  
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ATX6 Installation and User Guide  
16  
UHF Power Level  
(Lo / Hi)  
Use the INC button to toggle between Lo (4-Watt) and Hi (6-Watt)  
transmission power settings. Select the Hi setting for the widest area of  
coverage. Select the Lo to minimize interference with systems outside  
of your facility. Press SET when the desired value is displayed.  
17  
Sync Pulse Hrs (00 ~ 12 AM/PM)  
If an external system will be synchronized to the ATX6 by a “Dry  
Contact” Relay closure, set the Hour at which the event should occur.  
The double-cursor indicates that both digits may be changed using the  
INC button. Advancing past ‘11’ will also toggle the AM / PM indicators.  
Press SET when the correct value is displayed  
18  
Sync Pulse Mins  
(00 ~ 59)  
If an external system will be synchronized to the ATX6 by “Dry  
Contact” Relay closure, set the Minute when the event should occur. A  
two second closure will occur at the 58th second of the previous minute  
syncing the device to the ATX6. Use the INC button to change the value  
of the first digit. Press NXT to move cursor to the next digit, and then  
press INC to change the selected digit. Press SET when the correct  
value shows.  
The Sync Pulse will not execute if programmed between 1:05AM and  
1:20AM, 3:05AM and 3:20AM, 10:45PM and 10:59PM or during the first  
15 minutes after power is applied.  
19  
External Amplifier  
(0 ~ 1)  
If an external amplifier will be used this function must be set to 1  
(Enable). Enabling this function changes the frequency of  
transmissions. When enabled, the ATX6 will transmit an AirTime signal  
4 times per hour.  
Page 12  
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ATX6 Installation and User Guide  
P
Password  
(000 ~ 999)  
For security purposes, you may set a unique password for your ATX6. To  
change the Password, use the INC, NXT and SET buttons. The INC  
button will increment the digit over the displayed cursor. The NXT  
button will move the cursor to the next digit. The SET button will enter  
your final selection. If you do not wish to change the current Password,  
simply press SET.  
This is the final step, indicated by the display showing the correct time  
and Day-Of-Week cursor. Daylight Savings Time is also indicated.  
Page 13  
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ATX6 Installation and User Guide  
Operating Modes:  
Normal:  
In Normal Mode, the ATX6 will listen for synchronization signals from  
the device selected as the Time Reference (Set-Up parameter # 7). If  
an external Time Source is selected, the ATX6 will synchronize its Real-  
Time-Clock to that source, when the synchronization signal is received.  
In the event of a power failure, the RTC Date and Time parameters are  
protected and continue to operate using a Lithium “coin-cell” battery.  
In Normal Mode, the ATX6 transmits a radio signal (indicated by the  
UHF LED flashing once) to other ATX-series devices during the last ten  
seconds of each minute, If RC Emulation is enabled (Set-Up parameter  
# 15), the ATX6 will transmit a radio signal to RC-series Wall Clocks at  
the top of each odd minute; except the minute designated to generate  
a relay closure (see below). If an external amplifier is used, the ATX6  
will transmit a signal every 15 minutes of each hour.  
If “Dry Contact” (Relay) synchronization is not selected as the time  
reference (Set-Up parameter #7 is not equal to ‘Syn’), then the ATX6  
will activate the local Relay [and Wireless Remote Relay (option)] at  
the selected HH:MM:00.  
If 485 is not selected as the time reference (Set-Up parameter #7 is  
not equal to ‘485’), then the ATX6 will transmit the RS-485 protocol to  
synchronize Lathem Master Clocks and Bell Ringers that support the RS-  
485 interface at the 40th second of each minute (HH:MM:40). This is  
indicated by the 485 flashing indicator once.  
Each day for 15 minutes, beginning at 1:05AM, 3:05AM and 10:45PM the  
ATX6 will listen to and re-evaluate its radio environment, to determine  
if any Automatic Time Slot adjustment is required. During this period,  
the “~” symbol will flash and radio transmissions are inhibited.  
Transmission parameters are automatically adjusted, as may be  
necessary. If another AirTime Transceiver (ATX or ATX6) is selected as  
the time reference for this unit (Set-Up parameter #7 is set to ‘Air’),  
then this ATX6 will synchronize its clock to the received transmission.  
The ATX6 will indicate when it receives a signal by the UHF LED  
flashing twice.  
Page 14  
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ATX6 Installation and User Guide  
If ‘PcL’, ‘485’ or ‘GPS’ is selected as the time reference, the ‘PCL’,  
‘485’ or ‘GPS’ LED will flash twice each time a valid signal is received.  
The ‘485’ or ‘UHF’ LED will flash once each time a signal is transmitted  
by the ATX6.  
AirTime Transmit Mode:  
Automatic:  
When not in Receive Mode (automatically or manually initiated) the  
ATX6 will transmit the RC radio signal each odd minute (if RC Emulation  
has been enabled). The ATX6 will transmit the AirTime radio signal  
each minute, or each even minute (if RC Emulation has been enabled).  
When an external amplifier is used, the ATX6 will transmit an AirTime  
signal 4 times per hour.  
Manual:  
Transmit Mode is entered by pressing and holding TRNS (SET) for 2  
seconds, and is evidenced by the ‘~’ symbol appearing in the display  
solidly and the UHF LED flashing once each time it transmits a signal.  
When AirTime Transmit Mode is active, the ATX6 will transmit the  
AirTime synchronization signal to all ATX-series devices, once every 10-  
seconds for one hour. This can be helpful when installing and testing  
other ATX-series devices in the system.  
If the TRANSMIT (SET) button is pressed during the 15-minute Receive  
Mode that occurs automatically upon unit power-up and during the  
period beginning at 1:05AM, 3:05AM and 10:45PM each day, or as a  
result of manually starting Receive Mode (see below), transmissions will  
not occur until Receive mode has expired or been cancelled.  
During AirTime Transmit Mode, all other Normal operations (except RC  
radio transmissions) will continue. Transmit Mode can be terminated by  
pressing and holding the TRNS (SET) button for 2 seconds, and is  
evidenced by the ‘~’ symbol disappearing from the display.  
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ATX6 Installation and User Guide  
Receive Mode:  
Automatic:  
If RS485, GPS or Air have been selected as the synchronization type (in  
Set-Up Parameter #7) , then the ATX6 will automatically enter a  
“listen” mode for 15 minutes after power up and each day at 1:05AM,  
3:05AM and 10:45PM. This is indicated by the “~” symbol flashing. The  
UHF LED will flash twice during this time each time a signal is received.  
Manual:  
Receive Mode is entered by pressing and holding RECV (NXT) for 2  
seconds, and is evidenced by the ‘~’ symbol appearing in the display  
solidly. The UHF LED will flash twice each time a signal is received.  
When Receive Mode is active, the ATX6 will listen for AirTime signals  
transmitted by other ATX-series devices for one hour, allowing it to  
configure itself as a member of the AirTime Network. This is helpful  
when installing and testing other ATX-series devices in the system.  
Radio transmissions are inhibited during receive mode.  
If another AirTime Transceiver (ATX or ATX6) is selected as the time  
reference for this unit (Set-Up parameter #7 is set to ‘Air’), then the  
ATX6 will synchronize its clock to the received transmission.  
Receive Mode can be terminated by pressing and holding RECV (NXT)  
for 2 seconds, indicated by the ‘~’ symbol extinguishing on display.  
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ATX6 Installation and User Guide  
RC Transmit:  
If RC EMULATION is enabled [Set-Up parameter #15, above, = ‘1’] RC  
Transmit is selected by pressing and holding RC (SET) for 2 seconds.  
The ATX6 transmits one (1) RC synchronization signal to all RC-series  
Wall Clocks, as indicated by illumination of the UHF Indicator. This is  
helpful when installing and testing RC-series devices in the system.  
During RC Transmit, lasting approximately 5-seconds, “Normal”  
operations are suspended.  
Firmware Version Number Display:  
The Firmware Version installed in the ATX6 can be displayed by  
pressing and holding INC, NXT and SET buttons simultaneously for 2  
seconds. The display will show “F1.14” for example.  
The Firmware Version also displays for 2 seconds after power up.  
This information may be helpful to Lathem’s Tech Support personnel,  
in the course of answering a technical question about the ATX6  
product.  
Battery Replacement:  
The ATX6 includes a #BR2325 Lithium Coin-Cell Battery that maintains  
the Real-Time-Clock during AC Power Failures. Typical battery life,  
when the ATX6 is normally powered from an AC outlet, is eight years.  
As battery life may be less, depending upon your circumstances, it is  
suggested that the battery be replaced every five years.  
CAUTION: Make sure that the AC Power Cord is unplugged  
before opening the ATX6 enclosure.  
To replace the battery, remove the two screws from top case cover.  
Lift the top case cover.  
Carefully slide the front panel assembly up until the battery’s location  
is accessible.  
Using a pen point, push the old battery through the Holder access  
opening, so that it emerges from its Holder  
Insert a new battery with the positive side pointing away from the  
board into the Holder and slide the front panel assembly back into  
place and secure the top case cover  
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ATX6 Installation and User Guide  
Installation Examples  
ATX6 Stand Alone correcting Wireless Wall Clocks  
ATX-GPS to ATX6 correcting Wireless Wall Clocks and LTR Master  
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ATX6 Installation and User Guide  
ATX Receiving WWVB signal synchronizing an ATX 6 correcting Wireless  
Wall Clocks and LTR Master  
ATX6 through an external amplifier correcting Wireless Wall Clocks  
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ATX6 Installation and User Guide  
Wiring Diagrams  
Synchronizing the ATX6 to Lathem’s AirTime TimeSync  
Software via Ethernet to RS232 Converter  
(Program Synchronization “PcL”)  
Synchronizing the ATX6 to the ATX6-GPS Receiver  
(Program Synchronization “GPS”)  
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ATX6 Installation and User Guide  
When attaching wires to the terminal block the ATX6 should be in a  
vertical position. If the ATX6 is horizontal the terminal block will not  
lock down the wires.  
Synchronizing a LTRX-512 to an ATX6 using RS485  
Synchronizing the ATX6 from a LTRX-512  
(Program Synchronization “485”)  
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Synchronizing a LTR0 or DWA-S to an ATX6  
Synchronizing a DDC2/4-RS to an ATX6  
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ATX6 Installation and User Guide  
Synchronizing the ATX6 to a LTR-GPS  
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ATX6 Installation and User Guide  
Synchronizing a LTRX-512 to ATX6 using Sync Relay  
closure  
(Program ATX6 Relay closure at 12:00AM)  
Verify Jumpers are “Open” as shown for Sync Output.  
To access jumpers see page 3.  
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ATX6 Installation and User Guide  
Synchronizing the ATX6 to an External Relay Closure  
(Program Synchronization “SYN”, verify J7 & J8 are Closed)  
Verify Jumpers are “Closed” as shown for Sync Input.  
To access jumpers see page 3.  
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ATX6 Installation and User Guide  
Specifications  
Dimensions  
Weight  
9" H X 5 1/8" W X 3 1/8" D  
3.8 lbs (1.702 kg)  
Display  
LCD with Time / Status indicators  
and 4 LED indicators  
Housing  
All metal enclosure with grey textured paint.  
Line Power  
90 to 250vAC, 47 - 63Hz, 10W max  
Max Current = 100mA (while transmitting)  
Standby Power  
Environment  
BR2325 3V Lithium Battery (included)  
32o to 130 o F (0 o to 55 o C)  
20% - 80% Relative Humidity (non-condensing)  
FCC  
Conforms to FCC Part 15  
FCC ID: UP3ATX6  
UL  
Mounting  
Wall (surface)  
Inputs / Outputs 6W UHF radio transceiver via BNC antenna connector  
RS232 via Lathem cable (Part # SAE0370) through an  
external Ethernet adapter. (Lathem part # TXTOSER)  
RS485 via UTP (Cat3, CAT5) cable to terminal block  
From: LTR-0, LTRx-512, LTR-GPS  
To:  
LTRx-512, DWA-S, DDC2/4-RS  
Dry Contact Sync-Out (Load: 24VDC max at 250Ma)  
from terminal block  
Dry Contact Sync-In to terminal block  
GPS Receiver (Part # ATX-GPS) input via RJ45 jack  
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ATX6 Installation and User Guide  
Warranty  
Limited One-Year Limited Warranty  
Lathem warrants the hardware products described in this guide against defects in material  
and workmanship for a period of one year from date of original purchase from Lathem or  
from an authorized Lathem reseller. The conditions of this warranty and the extent of the  
responsibility of Lathem Time Corporation (“Lathem”) under this warranty are listed below.  
1. This warranty will become void when service performed by anyone other than an  
approved Lathem warranty service dealer results in damage to the product.  
2. This warranty does not apply to any product which has been subject to abuse,  
neglect, or accident, or which has had the serial number altered or removed, or  
which has been connected, installed, adjusted, or repaired other than in  
accordance with instructions furnished by Lathem.  
3. This warranty does not cover dealer labor cost for removing and reinstalling the  
machine for repair, or any expendable parts that are readily replaced due to  
normal use.  
4. The sole responsibility of Lathem under this warranty shall be limited to repair of  
this product, or replacement thereof, at the sole discretion of Lathem.  
5. If it becomes necessary to send the product or any defective part to Lathem or  
any authorized service dealer, the product must be shipped in its original carton  
or equivalent, fully insured with shipping charges prepaid. Lathem will not  
assume any responsibility for any loss or damage incurred in shipping.  
6. WARRANTY DISCLAIMER AND LIMITATION OF LIABILITY: Except only the limited  
express warranty set forth above, the products are sold with no expressed or  
implied warranties of any kind, and the implied warranties of merchantability and  
fitness for a particular purpose are hereby expressly disclaimed. No warranties  
are given with respect to products purchased other than from Lathem or an  
authorized Lathem reseller and any such products are purchased "as is, with all  
faults." In no event will Lathem be liable for any direct, indirect, special,  
incidental or consequential damages arising out of or in connection with the  
delivery, use or inability to use, or performance of this product. In the event any  
limited remedy given herein shall be deemed to have failed of its essential  
purpose, Lathem's maximum liability shall be to refund the purchase price upon  
return of the product.  
7. Proof of date of purchase from Lathem or an authorized Lathem reseller is  
required for warranty service on this product.  
8. This Warranty grants specific legal rights. Additional legal rights, which may vary  
by locale, may also apply.  
9. Should any difficulties arise with the performance of this product during  
warranty, or with any Lathem authorized service centers, contact Lathem Time at  
the address below.  
Lathem Time  
200 Selig Drive, SW, Atlanta, GA 30336  
404-691-0405  
Page 27  
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