RAD Data comm 146 Manual do Utilizador descarregar pdf (Página 68)

Chapter 4 Port Configuration and Monitoring 5620 Model Descriptor for LA-110 User’s Manual

4-18 Data Port Configuration

Figure 4-13. AAL1 Stream Interface Port Loopback State

2. Fill in the fields, as described in Table 4-8.

3. Click <Save> to save the changes.

Table 4-8. Data Port - AAL1 Stream Interface Loopback State Parameters

Parameter Remarks

Port The selected port

Read-only

Loopback Test Activates a loopback test on the specified port

• Local Loopback (LLB): Can be used to check the source of a certain problem.

Activates the local loopback on the local data port. Checks that the user's equipment

receives its own signal while the loopback is connected. If it does, the problem is

external.

• Remote Loopback (RLB): Can be used to check the source of a certain problem. For

example, if there is certain alarm on a port, and if after activating the RLB the alarm

disappears, then the problem is external.

• None: No Test.

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RAD Data comm 146 Manual do Utilizador Página 68