User's Manual Part 2

PN 8100-40 Help Hot Line (U.S. only): 1-800-530-9960 10-5
620004-0 Rev. E
Troubleshooting
10.2.2.2 Diagnostic Procedures
Use the following table when diagnosing system problems. For troubleshooting, you
can copy the blank table on page 10-8 and use it to record the LED colors on the Main
Hub, the particular Expansion Hub indicating a fault, and the RAUs connected to it.
This is necessary because the Main Hub, Expansion Hubs, and RAUs typically are
geographically distributed.
To determine where the fault might be:
1. Go to the Main Hub and record the LEDs. The Main Hub indicates which Expan-
sion Hub may be faulty by lighting one of its port LEDs red.
2. Go to the Expansion Hub attached to the port that has a red LED.
3. Record that Expansion Hub’s LEDs. The Expansion Hub indicates which RAU(s)
may be faulty by lighting its antenna LED red.
4. Go to the RAU(s) connected to the Expansion Hub port that is indicating a fault.
Record the error.
5. Compare your filled in table to the Diagnostic Table below and begin trouble-
shooting according to the notes indicated for your situation.
Table 10-2 LED Diagnostics
Visual Alarm LEDs
Remote Alarm
Contacts
Main Hub Expansion Hub RAU DB-9 Connector
Port Functionality Port Functionality
Power Sync
Major
Alarm
Contact
Error
Latch
Contact
See
Note
Link
Status Sync Sync Power
Link
Status Sync Sync Power
Green Green Green Green Green Green Green Green Green Green Short Short 1
Red Red Green Green Off Off Off Off Off Off Open Open 2
Green Red Green Green Green Red Green Green Off Off Open Open 3
Green Red Green Green Red Red Green Green Off Off Open Open 4
Green Red Green Green Green Red Green Green Green Red Open Open 5
Green Red Green Green Green Red Off Green Green Red Open Open 6
Red Red Green Green Green Red Red Green Green Red Open Open 7
Off Off Off Off Green Red Off Green Green Red Open Open 8
Green Red Red Green Green Red Red Green Green Red Open Open 9
Red Red Green Green Green Green Green Green Green Off Open Open 10
Green Red Green Green Red Red Green Green Off Off Open Open 11
Green Red Green Green Green Green Green Green Green Off Open Open 12
Green Red Green Green Red Green Green Green Off Off Open Open 13
Major and Error Latch contacts indicate an alarm when the contacts go from a short to open state.