Figure 84 - Cim Diagnostic Leds - B3 - B0 - Keyscan CA250 Series Technical Manual

CIM Boot-up
When power is applied to the CIM or the reset jumper J1 is momentarily shorted, the CIM module will
begin its boot-up sequence. The module uses the four (4) diagnostic LEDs to indicate where it is in the
boot-up sequence.
B3 – B0 Code
 1 to 4 – basic initialization notices
 5 (0101) – the CIM has entered NETCOMP program mode (LEDs will extinguish after approximately 1
second.)
 6 (0110) – the CIM has entered ACU connection mode (The LEDs may extinguish after 1 second if the CIM
can establish communication with the ACU quickly. The CIM may stay in this mode longer if it is auto-
matching the bit rate of the ACU or is unable to communicate to the ACU via the global communication
port.)
 7 (0111) – the CIM has entered CIM 0 mode (It has been set to provide PC to CANBUS communication. (If
the bit rate has been set via jumpers J9 – J11, the CIM will extinguish the LEDs after approximately 1
second. If the CIM has been set for auto-match bit rate, the LEDs may extinguish after 1 second if the CIM
can establish communication with the ACU quickly. The CIM may stay in this mode longer if it is auto-
matching the bit rate of the ACU or is unable to communicate to the ACU via the global communication
port.)
Keyscan Inc. – Technical Guide (PC109x - 07.15)

Figure 84 - CIM Diagnostic LEDs - B3 - B0

Cut View
1 2 1 2
Rx - COM CAN
KI-00268E-07-12
Diagnostic LEDs
& Diagnostic Jumper J2
J10
J4
J11
J9
J3
Diag
J12
B3 B2 B1 B0
Power
Good
1 2 1 2
Fault
J2
COM CAN - Tx
(Flashing)
119