CTI 2500-RIO-B Installation and Operation Guide V1.4
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2.8. Operation of LED Display
The LED Display is used to indicate the status of the 2500-RIO-B Remote Base Controller as shown
in the following table:
Display
Definition
Communications
to RBC
Comment / Action
0
Module Ready
OK
Fully Operational and online with CPU.
1
Diagnostics Failure
None
Serious malfunction. Place system in safe
state and contact CTI Technical Support.
2
Module Mismatch
OK
I/O modules installed do not match the
expected configuration in the CPU.
3
I/O Communications
timeout
Failed
There is no communication with the CPU.
Place the system in a safe state. Check
power, cabling, and connection to the CPU.
4
Ram Parity Error
Failed
Serious malfunction. Place system in safe
state and contact CTI Technical Support.
5
Standby, No
Configuration
None
Standby RBC in dual-media application is
not configured. Configure module.
6
Address Mismatch
OK
Dual-
media RBC’s must have identical
station address. If addresses are equal,
contact CTI Technical Support.
7
Communications OK,
No Configuration
OK
2500-RIO-B is not configured. Configure
RBC in CPU.
8
Watchdog timeout
Failed
Serious malfunction. Place system in safe
state and contact CTI Technical Support.
*blank*
No Code Displayed
None
Serious condition. 2500-RIO-B is not
operational. If power to base is OK, contact
CTI Technical Support.
C
Standby unit
configured
OK
Standby unit of a redundant pair is
configured and communicating
A,B,E
Internal Failure
Failed
Hardware failure detected during power on
initialization tests.
Following power up of a redundant RBC pair, the unit on the left becomes the primary and displays a
“0”. The unit on the right becomes the standby unit and displays a “C”.
