Datalogic Matrix 120 Product Reference Manual page 162

SOFTWARE CONFIGURATION
For Matrix 120™ readers some of these alarms are not relevant. The following table
shows the relevant alarms:
Alarm Code
171
189
191
193
195
999998
148 MATRIX 120™
Description
Protocol Index Failure
Fieldbus Communication
Failure
Fieldbus Type Mismatch
Fieldbus Configuration
Error
Fieldbus DHCP Problem
Camera Head Failure
Meaning
The expected Protocol Index is not received
There is a communication error between
the scanner and the Fieldbus module inside
the CBX connection box or QLM Gateway
The Fieldbus module inside the CBX
doesn't match the one saved in the scanner
configuration memory
A configuration error has occurred between
the scanner and the Fieldbus module inside
the CBX connection box
A communication problem has occurred
between the DHCP server and the Fieldbus
module inside the CBX connection box or
QLM Gateway
The Matrix 120™ Camera Head has failed