User manual

Raisecom Technology Co., Ltd
7
OFF OFF OFF OFF No
loop-back
OFF OFF OFF ON 1
st
E1
OFF OFF ON OFF 2
nd
E1
OFF OFF ON ON 3
rd
E1
OFF ON OFF OFF 4
th
E1
ON ON ON ON All E1 links
Note: Only two test method can be set: single E1 channel loop-back or all E1 channels
loop-back. When single E1 channel loop-back is testing, the other channels work normally.
• 5
th
bit: loop-back type options
This switch is used to choose “remote loop-back” or “local loop-back” when performing
the E1 loop-back operations.
5
th
bit Loop-back type option
OFF Remote loop-back enable
ON Local loop-back enable
Figure2: sketch map of setting remote loop-back on local site
Figure3: sketch map of setting local loop-back on local site
Note: When any loop-back is set on local site, 1
st
~ 4
th
loop- back DIP-switch of remote site
must be all off (not loop-back).
• 6
th
bit: Saving the configurations
OFF: when rebooted, the equipment will read from the saved configurations.
ON: when rebooted, the equipment will not read from the saved configurations.
6
th
bit Switch for saving configurations
OFF Read from the saved configurations when
booting
ON Not read from the saved configurations when
booting
Local
Remote
Fiber
E1
E1
Multipl
exer
BER tester
Multipl
exer
Local
Remote
Fiber
E1
E1
Multipl
exer
BER tester
Multipl
exer