Raisecom RC802-30B-FV35-S1 User Manual - page 14
OFF Disable
When fault pass enable, alarms of optical interface Rx and Tx will be transferred to DCD
and CTS signal on V.35 interface; When fault pass disable the DSR, DCD and CTS signals
of V.35 interface will be valid.
When fault pass enable, if the device has local alarm (errors on fiber Rx interface) the DCD
signal of V.35 interface will close and DTE device should have some denotation.
When fault pass enable, if the device has remote alarm (errors on fiber Tx interface) the
CTS signal of V.35 interface will close and DTE device should have some denotation.
After power on the DSR signal of this series device will be forever valid.
2. The 2
nd
, 3
rd
, 4
th
bit: Reserved dip-switch.
These bit are reserved and for internal test. They should be all OFF when work normally.
3. The 5
th
, 6
th
, 7
th
, 8
th
bit: Vendor configuration dip-switch
These bit are configured by producer and please don’t change.
3.3. Relationship between dip-switch and software configuration
The corresponding relationship of above device dip-switch and network management ability
is shown as below table:
Dip-switch The
configuration
can be changed by software or
not
SW1~SW4 Can
SW5 Can
SW6 Can
not
3.4. Basic Connection Type
The connection topologies introduced in this part is only for user reference. Users are
advised to design and deploy the most appropriate topology according to their specific
environment.
3.4.1. Point-to-point, ‘Master Clock – Slave Clock’ Topology
When connecting Routers or other V.35 interface equipment point to point, routers should
work in DTE mode. For the convenience of installation and test, it is advised to set the local
modem ‘Master Clock Mode’, and remote modem ‘Slave Clock Mode’. That is, the timing
resource is from the local modem.