Mitel 50005070 Instruction Manual download pdf (Page 281)

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Basic Troubleshooting and Repair

SX-200 ICP and PMS Cannot Communicate

If the SX-200 ICP PMS interface and the customer’s PMS computer

cannot communicate, the system will generate PMS related maintenance

log messages. Typically, PMS maintenance log messages will identify

• Operating status of the PMS

• Invalid start (STX) and end (ETX) of text message characters

• Invalid function code message characters

• Invalid status code message characters

• Invalid room number message characters.

Testing the PMS Interface of the PBX

PMS problems typically occur in these areas:

• PMS Protocol settings: Ensure that the communication parameters

between the systems match.

• PMS Programming: Verify that all the recommended PMS and

Dataset programming is complete.

• RS232-to-IP serial port converter: Use a straight-through cable

between the customer’s PMS computer and the converter.

Test the SX-200 ICP PMS interface as follows:

1. Disconnect the customer’s PMS computer from Ethernet-to-Serial

converter.

2. Connect a personal computer to the converter.

- Ensure that the communications parameters of the personal

computer / terminal match those expected by the PBX’s PMS

interface.

- Verify that you receive the ENQuire character from the SX-200 ICP

PMS interface. If not, verify that all the programming and the

connections are correct.

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Mitel 50005070 Instruction Manual Page 281

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