RuggedCom RX1100, RX1000 manual T1/E1 Loopback Menu

Chapter 6 – Configuring Frame Relay/PPP And T1/E1

T1/E1 Loopback

When at least one logical interface is configured, a T1/E1 Loopback tests can be performed. This menu can be reached from a link on the T1/E1 WAN Interfaces menu.

Figure 60: T1/E1 Loopback Menu

The loopback test provides a means to test the digital and analog hardware of your T1/E1 hardware and the T1/E1 line. The sender transmits a number of frames which are looped back to it. The returning frames are verified for correctness.

A digital loopback is started first, verifying the digital section of the interface. If a loopback stub is inserted in the interface jack, a remote loopback will verify the interfaces digital and analog sections. If the remote equipment is able to loop, the entire T1/E1 line can be verified. If the remote router is another RuggedCom router, a starting a line loopback will verify both cards and the line. This router will display the count of loopback frames as they arrive.

Figure 61: T1/E1 Loopback

The Select Loopback Type field selects the loopback.

The Number of Loops field controls the frames sent during digital and remote loopback. This parameter is not used during line loopback.

The Time to run test field limits the time the sender will transmit and the router running line loopback will wait.

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