Service and troubleshooting
8.14 EST3 Installation and Service Manual
Table 8-6: 3-FIB troubleshooting
Symptom Possible causes
No LED activity on any fiber
optic port
1. Ribbon cable between interface and electronics card loose,
Improperly installed, or broken.
2. Electronics card not properly seated in J2 of CPU.
No LED activity on “IN” fiber
optic port
1. Incorrect cable connected to port.
Steady on LED on “IN” fiber
optic port
1. Jumper JP1 left in test position.
Signature Controller modules
Please refer to Signature Component Troubleshooting Chapter
for complete information on Signature related troubleshooting.
Control / display modules
The information in this section applies to the following models
of control / display modules:
3-12/1RY 3-2RY 3-12/2RY
3-12SG 3-12SR 3-12SY
3-12/SIGY 3-12/S1RY 3-12/AS2Y
3-24G 3-24R 3-24Y
3-6/3S3L 3-6/3S1G2Y 3-6/S1GYR
The control / display modules operate independently of the host
module on which they are installed. The displays do use the host
module’s electronics to communicate with the CPU.
The Lamp Test function (pressing Panel Silence and Alarm
Silence Switches simultaneously) will quickly isolate hardware
problems from programming problems with any display.
Table 8-7: Control / display module troubleshooting
Problem Possible cause
Module LEDs and switches
inoperative AND host module
inoperative
1. No power to panel
2. Ribbon cable between display and host module loose or
defective
3. Display defective
4. Host module defective
To Next Page
Loading...
Need help?
General