User's Manual

50 MDS 9810 Installation and Operation Guide MDS 05-3301A01, Rev. C
A variation on the ZONE DATA command is ZONE DATA! This causes data
to be retrieved from all zones. Data is sequentially displayed for each of
the 8 zones and then control returns to the command prompt.
(Note: If a frequency zone has been skipped, statistics will still be gath-
ered for that zone when
ZONE DATA is invoked at a remote site, but the
numbers will accumulate very slowly since the only data being passed
in a skipped zone is the radio’s synchronization signal. When invoked
at a master, no polls will be received from a skipped zone.)
ZONE CLEAR
The
ZONE CLEAR command clears the zone data for all zones, resetting
the count to 0. (Zone data is also cleared automatically upon reboot, or
upon saturation of a zone data counter.)
7.0 TROUBLESHOOTING
Successful troubleshooting of an MDS transceiver system is not diffi-
cult, but 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 instructions and synchronization data. If the master station has
problems, the operation of the entire network will be affected.
When communication problems are found, it is good practice to begin
by checking the simple things. All radios in the network must meet these
basic requirements:
• Adequate and stable primary power
• An efficient and properly aligned antenna system
• Secure connections (RF, data & power)
• Proper programming of the radio’s operating parameters, espe-
cially Mode selection (
MODE), Network Address (ADDR), and
interface Baud Rate (
BAUD)
• The correct interface between the radio and the connected data
equipment (proper cable wiring, data format and timing).
7.1 LED Indicators
The LED status indicators are an important troubleshooting tool and
should be checked whenever a problem is suspected. Table 11 describes
the function of each status LED.