24
OEM Series™ I/O Guide
MDS 05-3624A01, Rev. B
5.0
TROUBLESHOOTING
Successful troubleshooting of the radio system is not difficult, but it
requires a logical approach. It is best to begin troubleshooting at the
master station, as the rest of the system depends on the master for
polling commands. If the master station has problems, the operation of
the entire network can be compromised.
It is good practice to start by checking the simple things. For proper
operation, all radios in the network must meet these basic requirements:
• Adequate and stable primary power.
• Secure connections (RF, data, and power).
• An efficient and properly aligned antenna system with a good
received signal strength (at least –90 dBm). It is possible for a
system to operate with weaker signals, but reliability may be
degraded.
• Proper programming of the transceiver’s operating parameters
(see
Section 4.0, TRANSCEIVER PROGRAMMING
• The correct interface between the transceiver and the connected
data equipment (correct cable wiring, proper data format, timing,
etc.).
5.1 LED Indicators
The LED status indicators are an important troubleshooting tool and
should be checked whenever a problem is suspected.
describes the function of each status LED.
5.2 Event Codes
When an alarm condition exists, the transceiver creates a code that can
be read on a terminal connected to the
DATA INTERFACE
port. These
codes can be very helpful in resolving many system difficulties.
lists the definitions of the event codes.
Checking for Alarms—STAT command
To check for alarms, enter
STAT
on the terminal interface. If no alarms
exist, the message
NO ALARMS PRESENT
appears at the top of the display.
If an alarm does exist, the
STAT
command displays a two-digit alarm
code (00–31) and the event is identified as a Major or Minor Alarm. A
brief description of the alarm is also given.
If more than one alarm exists, the word
MORE
appears at the bottom of
the screen. To view additional alarms, press
.
ENTER
