D-Link DI-1750 Reference Manual page 24

5. Configuring Loopback Transmission Mode of E1 Interface
While in the mode of remot loop-back transmission, the message that received through the port will be
return by E1 through the sending channel.
loopback local
Loop(undo)
Take the first command as an example:
Choose the item 20 of interface-parameter prompt, it will display:
(00)local
(01)remote
Please Input the code of command to be excute(0-1): 0
Input 0, choose the item "local".
6. Configuring Transmitting Impulse Mode of E1
Choose transmitting impulse mode. To execute Cable 120 for cable type is 120Ω twisted-pair. The 75Ω
coaxial cable for default setting and obey ITU-T G.703 standard. The transmitting impulses of two types
of cable are diffenent.
Command
Cable 120
No cable
Choose item 1 of interface-parameter prompt, it will display:
(00)120 set 120ohm cable
Please Input the code of command to be excute(0-1): 0
Choose 0.
7. Forbid the link of E1 interface
Use for forbidding a E1 interface and the line status for all interfaces of port switch to down.
Command
Shutdown
Shutdown(undo)
Choose item 28 of interface-parameter prompt, then the link will be forbidden. If you input the "U" or "u"
before choose the item 28, the link will be resumed.
Example
Router_config#config-controller E1 2/0
Router_config_controller_E1_2/0#shutdown
Router_config_controller_E1_2/0# shutdown(undo)
8. Configuring set-channel-group Parameter of E1 Interface
set-channel-group is channel number of E1 with the range of 0-30. the timeslot is time-slot number of
E1 with the ranger of 1-31. The channel is able to occupy any non-assigned time-slot and combines
time-slot arbitrarily. The configuration of E1 channel will generate new interface.
Command
Configure the operation mode of E1 as remote
loop-back
Cancel the setting of remote loop-back
set local loopback
set local remoteback
Configure the cable of E1 interface as 120Ω twisted-pair
Default setting is 75Ω coaxial cable
Forbid the link of E1 interface
Restore the link of E1 interface
Model Name
Function
Function
Function
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