Cisco Systems IPMUX-1 Remote Loopback, Tone Injection, To run a loopback test, To run a test

Chapter 4 Troubleshooting and Diagnostics IPmux-1/1EInstallation and Operation Manual

ISDN BRI

External Loop

An external loop on IPmux-1E can be set to test the ISDN “S’ line (Figure 4-7). The test is performed on B channels only.

Figure 4-7. IPmux-1E/ISDN External Loop

Main Menu

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2. Configuration

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2.ISDN Configuration

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3.Channel

Configuration

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1.Choose Channel

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3.Loopback State

Internal Loop

An internal loop on IPmux-1E can be set to test the ISDN “S’ line (Figure 4-8). The test is performed on B channels only.

Figure 4-8. IPmux-1E/ISDN Internal Loop

To run a loopback test:

•Press the <Spacebar> on your keyboard to toggle between the values: Internal/External /Disable.

−Internal: Data received from the IP network side is looped back to the network transmit line.

−External: Data received from the PBX at the receive ISDN S line is looped back to the ISDN S Tx path (toward the same PBX). Data coming from the IP network is ignored.

−Disable: No loopback. Regular operation.

Default value: Disable

FXS/FXO/E&M

Main Menu

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2. Configuration

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2.Analog Configuration

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3.Channel

Configuration

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1.Choose Channel

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5.Testing

Remote Loopback

You can set a remote loopback analog signal, per port, in IPmux-1E with FXS/FXO/E&M interface. The analog signal is looped back towards the IP network.

Tone Injection

A 1 kHz tone, per port, is injected towards the local telephone set.

To run a test:

•Press the <Spacebar> on your keyboard to toggle between the values: Remote Loopback/Tone Injection/Disable.

Default value: Disable

4-26 Diagnostic Tests