ADCP-61-471 • Issue 4 • June 2000 • Section 2: Operation and Maintenance

TAP-103

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LOCAL CRAFT INTERFACE CONNECTION TROUBLESHOOTING

This TAP describes how to troubleshoot local Craft Interface connections.

1.Verify that you have the correct cable and connectors for the port you intend to use:

•A straight-through RS-232 25-pin D-sub female connectorized cable is required to connect to the MPU.

•A null-modem RS-232 25-pin D-sub female connectorized cable is required to connect to chassis Port 2 or 3.

Reference: DLP-504Local Craft Interface Connection

2.Verify that the cable length is correct for your application by referring to the EIA-232 protocol. The maximum length is 50 feet.

3.Verify that the cables and connectors are in good working condition.

4.Verify that you are using a control terminal (VT-100 or equivalent) or a host computer with VT-100 emulation.

5.Verify that the MPU is functioning properly by re-installing it. This procedure is non- service-affecting.

Reference: DLP-502MPU Installation and Testing

Reference: DLP-519MPU Replacement and Testing

6.If you are using chassis Port 2 or 3 and are unable to logon to the local Craft Interface after following Steps 1 through 5:

•Verify that Port 2 or 3 is configured for CRAFT through a connection to the MPU Craft Port.

Note: Ports 2 and 3 must be configured through the Craft Interface first before they can be used because they do not default to CRAFT.

Reference: DLP-504Local Craft Interface Connection

Reference: DLP-549Serial Port Configuration

7.If you are using the MPU Craft Port and are unable to logon to the local Craft Interface after following Steps 1 through 6:

•Check your records to see if the MPU has been reconfigured for a different interface than Craft, such as a TBOS or TL1 interface.

Note: The MPU Craft Port defaults to CRAFT but can also be configured for TBOS, TL1 or NONE. Refer to the TBOS and TL1 sections in this manual for additional information.

Reference: DLP-549Serial Port Configuration

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© 2000, ADC Telecommunications, Inc.