Raisecom Technology Co., Ltd
13
of SW3 is switched to ON. If the optical fiber is connected properly, the loop-back status can be
viewed at the port of local Router.
z
The
8
th
bit: Local loop-back function
Local Loop-back is performed at local V.35 interface and used for test and diagnosis the V.35
interface.
The local V.35 interface loop-back can only performed on the ‘Master Clock’ and ‘Terminal Clock’
equipment. As the above figure, the local equipment is set to Master Clock or Terminal Clock mode.
The 8
th
bit of SW3 is switched to ON, and the 1
st
~ 5
th
bits of SW1 are set to configure the
customized bandwidth. The loop-back status can be viewed at the port of local Router.
z
The factory default setup for SW3 is all OFF
Switch 1
st
bit
2
nd
bit
3
rd
bit
4
th
bit
5
th
bit
6
th
bit
7
th
bit
8
th
bit
Status
OFF OFF
OFF
OFF OFF OFF OFF OFF
Definition
Auto
negotiation
100M
Full
duplex
Vacant
FPT
disabled
Auto
MDI/MDIX
Remote
loop-back
disabled
Local
loop-back
disabled