User manual

Raisecom Technology Co., Ltd
17
Please keep OFF when the device works normally.
4.3.3. Function Dip-switch (SW6)
1
st
bit 2
nd
bit 3
rd
bit 4
th
bit 5
th
bit 6
th
bit 7
th
bit 8
th
bit
Set
Fault
Pass
Reserved Reserved Reserved
Configuration of vendor
ON Enable
OFF Disable Normal Normal Normal
Forbidden to be changed by users
1. The 1
st
bit: Fault Pass dip-switch (Default is OFF)
SW6-1 Fault Pass Function
ON Enable
OFF Disable
When the fault pass function is enabled, the alarms on fiber receiving side and
transmitting side will be transferred to DCD and CTS signals on V.35 interface; when the
fault pass function is disabled, the DSR, DCD and CTS signals on V.35 interface will be
always valid.
When the fault pass function is enabled, and if there is local alarm on fiber optic modem,
that is to say there are errors on fiber receiving side, the DCD signal of V.35 interface will
be closed and DTE device will have some reflection.
When the fault pass function is enabled, and if there is remote alarm on fiber optic modem,
that is to say there are errors on fiber transmitting side, the CTS signal of V.35 interface
will be closed and DTE device will have some reflection.
The DSR signal of this series device will be always valid after power on.
2. the 2
nd
, 3
rd
and 4
th
bit: Reserved (Default is OFF)
These bits are reserved for testing and they should be all OFF when the device works
normally.
3. the 5
th
, 6
th
, 7
th
and 8
th
bit: Vendor configuration bits
These bits are configured by vendor during the producing process and should not be
changed by users.