Laser beta lasermike LS8000-3 - Manual (Page 205)

LaserSpeed 8000-3 Instruction Handbook
Appendix E: Troubleshooting Guide
Part No. 93463 / Drawing No. 0921-01561 Page 205 of 221 Revision A (Sep 2007)
Appendix E: Troubleshooting Guide
Communications
Can't connect to the gauge
through the RS-232/RS-422 serial
port.
--- or ---
LaserTrak won't detect the gauge.
--- or ---
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