Black Box MT1000A-13-R3, Быстрый старт

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Chapter 4 Configuration MT1000A Installation and Operation Manual
4-26 Diagnostics
2. Highlight the Loop status field of the channel you want to change.
3. Enter the loopback status you want to set:
No loop —No loopback on the channel
LLB —Local loopback on the channel or uplink
RLB —Remote loopback on the channel.
See Chapter 5 for definitions of local channel and uplink loopbacks in the
remote MT1000A.
The loopback test begins running immediately after a loopback has been set.
Setting Loopbacks in the Remote MT1000A
To set loopbacks in the remote MT1000A:
1. From the Diagnostics menu, choose
Remote Device Loops
.
The Remote Device Loops menu is displayed. This menu is the same as the
Local Device Loops menu (
Figure 4-40 ).
2. From the Remote Device Loops menu, choose Loops Setting .
The Loops Setting screen ( Figure 4-41 ) is displayed.
3. Highlight the Loop status field of the channel you want to change.
4. Enter the loopback status you want to set:
No loop —No loopback on the channel
LLB —Local loopback on the channel or uplink
RLB —Remote loopback on the channel.
See Chapter 5 for definitions of local channel and uplink loopbacks in the
remote MT1000A.
The loopback test begins running immediately after a loopback has been set.
Setting the uplink local loopback in the remote MT1000A disconnects the link,
and as such, is irreversible. To remove this loopback, connect a terminal to the
remote unit or shut down the power to the remote unit. If you set the Uplink LLB
timeout on the remote MT1000A, the loopback test will stop after the specified
timeout period.
Displaying Loop Status
To display the current status of loops you have configured in the system:
1. Open the Diagnostics menu ( Figure 4-39 ).
2. Choose Loop Status .
The status of all loops currently configured on the local MT1000A is
displayed.
Caution