Voice Broadband Optical Multiplexer
User
Manual
14
1,2,3,4,5,6,7,8
5.1.4 How to make voice interface connecting cable
8 RJ45 interfaces provide 32 lines of telephone; each one
provides four lines,
Pin
Definition
[1..2]
Voice Line1
[3..4]
Voice Line2
[5..6]
Voice Line3
[7..8]
Voice Line4
5.1.5 How to make CONSOLE interface connecting cable
Pin
Definition
1
RS232Input
2
Empty
3
RS232Output
4
GND
5.2 Failure Diagnoses and Troubleshooting
Symptom
Possible Cause
Remedy
PWR is OFF
1. Control switch is not fully turned on.
2. The power supply is not connected
with correct polarity.
3. Outside power source is not correctly
plugged.
4. Conductor is dropped into the frame,
causing short-circuits between power
source and the ground.
5. Failure at power supply module.
1. Fully turn on the control switch.
2. Swap the polarity connection.
3. Properly plug the outside power source.
4. Remove the conductor.
5. Contact the distributor.
LOS
and
SYL
alarm
after
the
optical interface are
1.
The RX and TX are reversed at
optical interface.
2.
The cable is not made properly.
1.
Swap RX and TX.
2.
Make the cable properly.
3.
Set the transmission distance based
