APPENDIX A
APPENDIX A
PATTON ELECTRONICS MULTI-MODE FIBER RACK MOUNT
MODEM WITH G.703/G.704 INTERFACE
SPECIFICATIONS
Clocking Modes:
Network (G.703/G.704), Internal, Receive
Recover
Line Rate:
2048 kbps
Diagnostics:
V.52 compliant (511/511E) pattern generator
and detector with error injection mode.
Remote Loopback (toward fiber line) and
local loopback (toward G.703/G.704 net-
work) controlled by a single front panel
switch
LED Status:
The following LEDs are displayed on the
front panel:
Fiber:
The green Fiber LED indicates reli-
able data on the fiber side
E1:
The green E1 LED indicates reliable
data on the G.703/G.704 side
LOS:
The red LOS indicates that syncro-
nization between modems has not been
established. Blinking red LOS LED indicates
the presense of coding errors
NS:
The red NS LED indicates that the sig
nal on the fiber side is too weak to be
detected
ER:
Flashing red ER LED indicates errors in
511 test pattern
TM:
The yellow TM LED indicates that
modem is in a test mode
(Local/Remote Loopback or 511/511E test
pattern). Opaque TM LED indicates normal
operation.
Compliance:
FCC Part 15, CE, CTR12
Transmission Line:
Single fiber
Line Coding:
8B10B
Line Interface:
Transformer coupled, 1500 VAC isolation
Fiber Physical
Connection:
One string of 62.5/125
µ
m fiber with SMA
or ST connectors
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G.703/G.704 Specific
Interface:
Female Dual Coaxial 75 ohm or
Female RJ-48C 120 ohm
Line rate:
2.048 Mbps
Line coding:
AMI or HDB3 (HDB3 is the default)
Isolation:
1500 Vrms
Physical Connection:
pin 1 Rx Data +
pin 2 Rx Data -
pin 4 Tx Data -
pin 5 Tx Data -
pins 3, 6, 7, 8 no connection
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