CTI Products CHIB CommandSTAR Lite Host Interface Module User Manual

Page 21

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CHIB Hardware Reference

Troubleshooting

CTI Products, Inc.

68-11662-100

17

PROBLEM

CAUSE

Bad AIB to Astrotac cable
Bad Astrotac

5. If using a CIB

Bad connections to the comparator
Bad CIB

6. Bad console I/O programming, firmware, or module

Status Updates Okay
but no Force-Votes
or Disables

Since status updates are okay, the links between the console and
CHIB are okay. Also, the link between the AIB or CIB and the
CHIB is okay (at least in the AIB/CIB to CHIB direction).
(Remember that switch presses must go through the entire system
and than back to the console before the LED comes on.)

Possible problems:
1. Check to see if the ACT LED on CIB or AIB is off.

- Disconnect all other possible CHIBs, HIBs, and IIBs from
the AIB or CIB. (If any of these devices is accessing the AIB
or CIB, the ACT LED will be on.)
- If the ACT LED on the CIB or AIB is off, see the section
labeled: "If ACT LED on CIB or AIB is off".

2. If using a CIB:

Bad wiring to comparator
Improper option switch setting on CIB
Bad CIB

3 If using an AIB:

Bad AIB or Astrotac comparator

ACT LED on CIB or
AIB is off

CHIB is not talking to the CIB or AIB.
Possible Problems:
1. Check MCN Network Connections
2. Bad Address on AIB or CIB module

(These must be set to 00:0.)

3. Bad address on CHIB module

(It cannot be set to 00:0.)

4. There may be a duplicate address on a module in the system
5. If using EXB-Serial units, possible data transmission problem

from CHIB side to AIB/CIB side.

6. Bad EXB units
7. Bad CHIB, AIB, or CIB modules

Net Act /Reset LED
blinks

This is a normal condition. This LED will blink when the CHIB

sees updates from the AIB/CIB or when the console sends button

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