Smoke Alarm User Manual

Installation, Operation and Maintenance Manual
Issue 1 Page 8-3
February 2001
Table 8.2 Intelligent Interface Module to Computer Communications Faults
Intelligent Interface Module to Computer Communications Faults
Symptom Corrective Action
1. Ensure that the computer to IIM cable is plugged in to the port marked
“PC” on the IIM
2. Check the configuration of the LaserNET software under the
Setup/System Computer/Configuration menus. The serial port must be
set to the same COM port as the communications cable is plugged in to.
Connection type must be set to “Local IIM”.
3. Ensure that the IIM is powered and operating. Depress the hard reset on
the IIM. It should momentarily engage the trouble relay and extinguish all
LEDs. The orange (lower) LED will come back on for about 1 min while
the IIM resets. If no action occurs, the IIM may be defective or not
receiving power
No communications
between the IIM and the
computer when using a
direct IIM to computer
connection (Local IIM
connection)
4. Check the DB9 to RJ12 connector by separating the DB9 section from
the plastic housing. The wire configuration must be as follows:
White Pin 2
Blue Pin 3
Black Pin 4
Yellow Pin 5
Red Pin 6
Green Pin 8
1. Check for proper operation of the IIM using a local IIM connection. If this
fails, refer to local IIM troubleshooting section above. If the local IIM
connection functions correctly, check that the correct phone number is
being used and that the phone line is properly connected and operating.
2. Check the configuration of the LaserNET software under the
Setup/System Computer/Configuration menus. The serial port must be
set to same COM port as the communications cable is plugged into.
Connection type must be “ Remote IIM”.
3. Check that the characters “ATSO=1” appear in the initialisation string box
of the configuration screen. For a very few modems this string may
require modification. Consult supplier if problems persist in this area.
No communications
between the IIM and the
computer when using a
modem and phone lines
to connect to the IIM
(Remote IIM Connection)
4. If steps 1 to 3 do not resolve the problem, the IIM may be defective.