Installation, Operation & Diagnostics
for the
MIU9.6FPD
Industrial Grade, Digital Fast Poll
Standalone Modem
Document No. 49-0002-013 Rev. A
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TABLE OF CONTENTS
1. STANDARDS.............................................................................................. 2
2. PRODUCT OVERVIEW........................................................................... 3
3. GENERAL PRODUCT SPECIFICATIONS............................................ 4
4. MODEM SPECIFICATIONS ................................................................... 5
5. ANALOG LINE SPECIFICATIONS ........................................................ 7
6. ANALOG MICROWAVE INTERFACE.................................................. 8
7. POWER CONNECTIONS........................................................................ 10
8. SERIAL DATA PORT PIN-OUT ............................................................ 11
9. DIP SWITCH FUNCTIONS..................................................................... 12
10. MODEM CONFIGURATION ................................................................. 14
11. LED INDICATOR..................................................................................... 15
12. OUTLINE DRAWING & MOUNTING.................................................. 16
13. DIAGNOSTICS ......................................................................................... 17
MIU9.6FPD Installation, Operation & Diagnostics
April 25, 1998
Page 1
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1. STANDARDS
Meets FCC Rules Part J, Subpart 15, Class A for radiated emissions.
MIU9.6FPD Installation, Operation & Diagnostics
April 25, 1998
Page 2
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2.
PRODUCT OVERVIEW
The MIU9.6FPD is an industrial grade Digital Fast Poll modem designed
for multidropping applications over unconditioned metallic lines (eg;
pilot wires). Available as single channel device (MIU9.6FPD), 2-channel
device (MIU9.6FPD/D) or repeater (MIU9.6FPD/R)
The MIU9.6FPD can be powered from a wide range of AC and DC
power supplies, it is internally surge protected on both the power and
analog lines, and it will operate in temperatures from -40 to +85 deg C.
Internally, the MIU9.6FPD consists of a baseboard and a
communication module. The baseboard includes the power supply
regulation and surge protection. The communication module is a
Telenetics™ Pony Express™ PE9.6FPD Modem Module.
The MIU9.6FPD is packaged specifically for the harsh environments
found in utility substations and industrial facilities. Though functionally
similar to commercial modems, the MIU9.6FPD includes special features
that make it particularly well suited for utility and industrial applications:
Environment: The MIU9.6FPD has been designed specifically for use
in harsh environments. In addition to an extended
temperature range (-40 to +85º C), the MIU9.6FPD
includes surge, shock, vibration, and safety features
superior to those of conventional commercial modems.
Power Supply: The MIU9.6FPD can be powered from a broad range of
AC and DC power supplies, such as an auxiliary supply
(eg; 12VDC) from another piece of equipment,
125VDC from a station battery or a standard 120VAC.
Industrial:
The MIU9.6FPD is packaged in a rugged, compact,
non-metallic (ABS) enclosure. Designed for unmanned
locations, the MIUs do not include the array of
pushbuttons and LEDs normally associated with
consumer-type modems. Configuration is by dip
switches. Standard industrial connectors for data,
analog and power interfaces allow reliable
interconnection to other industrial components.
MIU9.6FPD Installation, Operation & Diagnostics
April 25, 1998
Page 3
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3. GENERAL PRODUCT SPECIFICATIONS
Dimensions:
Weight:
5.3 x 4.0 x 1.375 inches
1 lb
Voltage Supply: Standard Model:
LV Model (Suffix “-LV”):
Current Requirements:
40 to 270VDC
40 to 270VAC, 50/60Hz
9 to 36VDC
12VDC 24VDC 125VDC 120VAC 220VAC
MIU9.6FPD
MIU9.6FPD/D
MIU9.6FPD/R
Surge Protection: Power Supply: 8kVrms
Analog Line:
Digital Line:
3.75kVac IEC255-5
ESD ± 10kV
Operating Temperature:
-40 to +85 deg C
Operating Humidity:
Storage Temperature:
0 to 90% (non-condensing.)
-55 to 100 deg C
MIU9.6FPD Installation, Operation & Diagnostics
April 25, 1998
Page 4
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4. MODEM SPECIFICATIONS
Modulation:
Synch/Async:
Data Rate:
Pulse Position Modulation (PPM)
Asynchronous Only
0 – 1200bps
Error Correction:
Data Compression:
None
None
Data Modulation Connectivity:
Using 16ms Polling Test
99.999% or better at -37dBm
99.5% or better at -40dBm
95% or better at -43dBm
Serial Formats and Flow Control:
Asynchronous and RTS/CTS flow control
Analog Interface
Tx Output Level:
Rx Sensitivity:
-0 dBm or -10 dBm *
-43dBm or -33dBm *
-43dBm for constant carrier
-40dBm for polling carrier
Dip Switch Selectable *
600 ohms balanced
Line Termination:
Line Impedance:
2 or 4 Wire Configuration:
Dip Switch Selectable *
MIU9.6FPD Installation, Operation & Diagnostics
April 25, 1998
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Other Features
Receiver Equalization:
Self Test Diagnostics:
Local Analog Loopback:
Local Digital Loopback:
Remote Analog Loopback
Remote Digital Loopback
Anti-Streaming:
Compromise Equalization
None
See Section 13
See Section 13
See Section 13
See Section 13
OFF or 45 Seconds (+ 5 sec) *
1ms, 12ms, 35ms or 50ms (+5%) *
Note: Soft Carrier will effect
RTS/CTS delay time (see Dip
Switch Settings ~ Section 8)
Switch Selectable ON or OFF
20ms of 900Hz after RTS is turned
Off
RTS/CTS delay:
Constant Carrier
Soft Carrier Turn Off
Carrier Turn ON/OFF
8ms +0.5ms
* Dip Switch Selectable ~ See Section 9
MIU9.6FPD Installation, Operation & Diagnostics
April 25, 1998
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5. METALLIC CONDUCTOR SPECIFICATIONS
The MIU9.6FPD contains digital circuitry for connection 2 or 4-wire
metallic conductors (eg; pilot wires). The MIU9.6FPD will also interface
to Power Line Carrier or Microwave radio voice channel networks.
The MIU9.6FPD has an RJ-11terminated connector. The following lists the
MIU9.6FPD conductor interfaces
Conductor Type:
Conditioned or unconditioned, Bell type 3002, 2 or 4-wire, full duplex
voice grade or metallic lines or better.
Analog Line Specifications:
Bandwidth
Impedance
Frequency Response
Receiver Input Level
Output Level
300 Hz to 3400 Hz (±3dB)
600 / 900 ohms , balanced
400 to 3000Hz (±2dB)
-16dBm max.
+7 dBm
Noise Signal Level
-48 dBmO
MIU9.6FPD Installation, Operation & Diagnostics
April 25, 1998
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6. POWER CONNECTIONS
MIU9.6FPD Installation, Operation & Diagnostics
April 25, 1998
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7. SERIAL DATA PORT PIN-OUTS
MIU9.6FPD Installation, Operation & Diagnostics
April 25, 1998
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8. DIP SWITCH FUNCTIONS
IMPORTANT NOTE: Invert modem to view dip switches as shown above
Table 1
Switch
Function
ON
OFF
Switch 1
Switch 2
Switch 3
Switch 4
Switch 5
Switch 6
Antistreaming
Data Rate = 19200 bps
Data Rate = 9600 bps
Data Rate = 4800 bps
Data Rate = 2400 bps
MIU9.6FPD Installation, Operation & Diagnostics
April 25, 1998
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9. LED INDICATOR
MIU9.6FPD Installation, Operation & Diagnostics
April 25, 1998
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10. OUTLINE DRAWING & MOUNTING
MIU9.6FPD Installation, Operation & Diagnostics
April 25, 1998
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11. DIAGNOSTICS
The following pages provide hardware techniques for diagnosing
communication problems and thereby isolating the problem at the local
modem, the remote modem or the interconnecting line.
(a) LOCAL ANALOG LOOPBACK (Figure 2)
Requires a loop back cable with a built-in circuit for line loss to
simulate a typical leased line condition (See Figure 3).
Connect the loop back cable to the RJ11 connector on the modem
under test.
Set Dip Switches as follows…
Switch 7 = OFF
Switch 9 = ON
Switch 1 = ON
Switch 3 = ON
Switch 6 = OFF
Switch 4&5 = ON
4-Wire
Soft Carrier Turn Off Enabled
Transmit (TxA) Signal Level = 0dBm
Receive (RxA) Signal Level = –33dBm
Switched Carrier
RTS/CTS Delay = 50ms
Test 1: RTS/CTS Analog Control
Set RTS “ON” and check that CD (Carrier Detect) turns
“ON”.
Turn RTS “OFF” and ensure that CD turns “OFF”
With RTS “ON”, run a test message at TxD and verify that
the same message is received at RxD with no data errors.
Test 2: Transmit Signal Power & Receive Levels
Set Dip Switch 1 OFF (TxA = -10dBm)
CD will be OFF.
Change Dip Switch 1 to ON (TxA = 0dBm)
CD should now be ON.
MIU9.6FPD Installation, Operation & Diagnostics
April 25, 1998
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Test 3: Received Signal Level
Set Dip Switch 1 OFF (TxA = -10dBm) and Dip Switch 3
OFF (RxA = -43dBm).
CD will be ON.
Run a test message at TxD and verify that the same message
is received at RxD with no data errors.
Test 4: Repeat Test 3 for various RTS/CTS delay times and with
soft carrier ON and OFF.
(b) LOCAL DIGITAL LOOPBACK – 4/Wire Network (Figure 4)
On the modem under test, connect TxD to RxD
Switch 1 = ON (TxA = 0dBm)
Switch 3 = ON (RxA = -33dBm)
Switch 4 = OFF (RTS/CTS = 35ms)
Switch 5 = ON (RTS/CTS = 35ms)
Switch 6 = ON (Constant Carrier mode).
Switch 7 = OFF (4-Wire)
Switch 8 = ON (Line Termination = 600 ohms)
Switch 9 = ON (Soft Carrier = ON)
Transmit a test message from a remote modem and confirm that the
same message is received back at RxD on the remote modem with no
data errors.
MIU9.6FPD Installation, Operation & Diagnostics
April 25, 1998
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(c) REMOTE DIGITAL LOOPBACK – 4/Wire Network (Figure 5)
Configure both the local and remote modems as follows:
Switch 1 = ON (TxA = 0dBm)
Switch 3 = ON (RxA = -33dBm)
Switch 4 = OFF (RTS/CTS = 35ms)
Switch 5 = ON (RTS/CTS = 35ms)
Switch 6 = ON (Constant Carrier mode).
Switch 7 = OFF (4-Wire)
Switch 8 = ON (Line Termination = 600 ohms)
Switch 9 = ON (Soft Carrier Turn Off = ON)
Connect TxD to RxD at the remote modem.
Transmit a test message from the local modem and confirm that the
same message is received back at RxD on the local modem with no
data errors.
MIU9.6FPD Installation, Operation & Diagnostics
April 25, 1998
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(d) LINE DIAGNOSTICS
(i) Typical modem configuration for 4-wire Point-to-Point system…
Switch 1 = ON (TxA = 0dBm)
Switch 3 = ON (RxA = -33dBm)
Switch 4 = OFF (RTS/CTS = 1ms)
Switch 5 = OFF (RTS/CTS = 1ms)
Switch 6 = ON (Constant Carrier mode).
Switch 7 = OFF (4-Wire)
Switch 8 = ON (Line Termination = 600 ohms)
Switch 9 = OFF (Soft Carrier = OFF)
(ii) Typical modem configuration for 4-wire Multi-Point system…
Switch 1 = ON (TxA = 0dBm)
Switch 3 = ON (RxA = -33dBm)
Switch 4 = OFF (RTS/CTS = 1ms)
Switch 5 = OFF (RTS/CTS = 1ms)
Switch 6 = ON (Constant Carrier mode).
Switch 7 = OFF (4-Wire)
Switch 8 = ON (Line Termination = 600 ohms)
Switch 9 = OFF (Soft Carrier = OFF)
Adjustments…
In a network with high line loss (greater than 16dB) change Switch 3
(RxA) to OFF (-43dBm).
If there are conditions that can cause cross-talk (TxA leaking into RxA
path) set Switch 1 (TxA) to OFF (-10dBm).
Note that noise level should be –50dBm or lower for most FSK
operation (signal-to-noise ratio of 15dB or higher)
MIU9.6FPD Installation, Operation & Diagnostics
April 25, 1998
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MIU9.6FPD Installation, Operation & Diagnostics
April 25, 1998
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April 25, 1998
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MIU9.6FPD Installation, Operation & Diagnostics
April 25, 1998
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NOTES:
MIU9.6FPD Installation, Operation & Diagnostics
April 25, 1998
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