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7-1
Section 7
Troubleshooting & Maintenance
This section contains a list of possible error messages and a troubleshooting process for each.
7.1
Error Messages
Table 7-1 lists the error messages that are displayed on the LCD of the receiver as well as the
message sent to the printer. There are two types of error messages that are displayed and
printed, line card communication errors, and system event errors. Line card communication
errors relate specifically to how the receiver communicated to an incoming call. System event
errors relate specifically to the system and the performance of its peripheral devices such as
the automation software, printers, etc. In Table 7-1, heading “LC Error” indicates that the
error message was a line card communication error and “SYS Error” indicates any system
event related error messages.
Table 7-1: Error Messages
LC
Error
Sys
Error
LCD
Messages
Printer Message
Description
What to Do
No Data
Received
No Data Received
On an incoming call no data was sent to the
receiver after the receiver gave its handshake
tones.
Usually a wrong
number.
0 Length Block
0 Length Blk
One of the message blocks received contained no
data.
Possibly a call with
caller ID information
but no data from a
control panel.
No Ack
No Ack
Receiver was unable to acknowledge the call.
Check the line card
setup and retest the
panel.
Time Out
Time Out
The incoming call timed out and the phone line
was released.
1. Retest Panel.
2. Replace panel.
3. Replace line card.
Corrupted Data
Corrupted Data
Bad or corrupted data was sent to the receiver.
Illegal Specifier Illegal Specifier
An error occurred in the look-up table for this call
message.
Call Technical
Support.
Undefined
Event
Undefined Event
The panel communicating to the receiver sent an
event code that the receiver does not recognize.
Unsupported
Event
Unsupported Event
The panel communicating to the receiver sent an
event code that the receiver recognized but does
not support.
Unsupported
Format
Unsupported Fmt
The calling panel communicated in a format not
supported by the receiver.
Program the panel to a
different reporting
format.
Summary of Contents for 9500
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