Keyscan CIM-LINK - CIM-LINK Diagnostics; CIM-LINK Diagnostics - Diagnostic Guidelines; CIM-LINK Diagnostics - LED Codes

CIM-LINK Setup Guide
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CIM-LINK Diagnostics
The CIM-LINK unit has on-board diagnostic LEDS - B3 to B0 - which are designed to assist
in troubleshooting communication difficulties.
 diagnostic LEDs during boot-up - initial power or Reset J1
 data LEDs during operation are Tx – transmit
Diagnostic Guidelines
LEDs B3 – B0 indicate Tx data transmission states. Diagnostic Jumper J2 sets the CIM
board to run in diagnostic mode.
CIM-LINK Diagnostics – LED Codes
The following table lists diagnostic LED codes on the CIM. LED indicators are as follows:
 0 = OFF
 1 = ON
Place a jumper on J2 to run the CIM in diagnostic mode.
LED
Trouble
Indication
Code
Fault
B3
B2
B1
B0
0
0
0
0
0
None
0
0
0
1
1
+ 5V Logic Voltage Low
0
0
1
0
2
+ 12V Input Voltage Low
0
0
1
1
3
+ 5V Isolated Logic Supply Low
0
1
0
0
4
n/a
0
1
0
1
5
Global Broadcast Fail
0
1
1
0
6
ACU Panel Initialize Fail
0
1
1
1
7
CAN Bus 2 Fault
1
0
0
0
8
n/a
1
0
0
1
9
n/a
1
0
1
0
10
NETCOMP not detected.
Note
Diagnostic mode is indicated by all 4 LEDs flashing 3 times. Diagnostic codes are displayed
every 20 seconds. Multiple codes are displayed lowest to highest.
End of diagnostic routine is indicated when all 4 LEDs flash 3 times.
Unless Power Good/Fault LED is flashing, the unit will not enter unit diagnostic mode even
if a jumper is on J2.
Diagnostics are continued on the next page …