Instruction manual
FO SERIAL
Page 18
9.
Troubleshooting
This chapter describes the operation phases of the FO and provides a diagnostic for most of the problems encountered during installation and
operation.
9.1.
Power up
Trouble
Check
Power-up
phases do not
progress
The mains power plug,
ON/OFF switch is on “ON” position
Power is applied to the chassis, electrical continuity on the fuse
receptacle
ON or flashing of the LED
on the front display
The FO does
not answer the
commands
LED
stays ON permanently. This LED flashes as soon as the
unit detects the terminal on the control port (DTR signal)
The CTRL plug at the terminal or PC used for the FO configuration.
The terminal parameters:19,200bps, 8 data bits, 1 stop bit, no parity
At power up and when a terminal is connected to the CTRL port
(signal DTR), the FO sends a welcome message
The Fibre
Optic Link
integrity is
down
Verify the crossing between the two fibres modem. Rx<->Tx
Clean the optic fibre and FO connector with a bomb of compressed
air to suppress any dust on the optic contact.
Any dust can degrade the transmission.
Use two FO modems of the same type with the correct fibre (multi-
mode or mono-mode)
If the trouble remains after the above verification, please contact your distributor or call CXR Hot Line
E-mail at:
Telephone:
+33 (0) 237 628 804