Laser LS8000-3 manual Appendix E Troubleshooting Guide, Communications

LaserSpeed 8000-3 Instruction Handbook

Appendix E: Troubleshooting Guide

Appendix E: Troubleshooting Guide

Communications

Can't connect to the gauge through the RS-232/RS-422 serial port.

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LaserTrak won't detect the gauge.

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Can't communicate with terminal program (such as HyperTerminal)

Wiring or wrong Baud Rate

Computer Problem

1.Cycle the gauge power and check the baud rate and framing as described under Baud Rate Indication.

2.Verify that you are connected to the proper pins. The 9-pin DSUB on the back of the gauge is not an RS-232 port.

3.Verify that the serial cable you are using is not a null modem cable. A straight-through cable is required.

4.Verify that the breakout is wired correctly:

DB25 Pin 1	DB9 Pin 2
DB25 Pin 2	DB9 Pin 3
DB25 Pin 19	DB9 Pin 5

Verify that the serial port and cable are useable by the software.

1.Connect to the serial port with HyperTerminal

2.Make sure the "Echo typed characters locally" checkbox is NOT checked. Set the Hyperterminal settings to match the following:

3.Do a loop-back test by disconnecting the serial cable from the LaserSpeed breakout DB9 and short pins 2 and 3 of the cable together with a paperclip or screwdriver.

4.You should be able to type on the keyboard and see everything that you

Part No. 93463 / Drawing No. 0921-01561 Page 205 of 221 Revision A (Sep 2007)