Microwave Data Systems EL805, Руководство по установке и эксплуатации

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MDS 05-2708A01, Rev. B MDS TransNET 900 I&O Guide 39
The ZONE DATA format is displayed as follows:
1:TX TOTAL 00000000
1:RX TOTAL 00000000
1:RX ERROR 00000000
x:
x:
x:
8:TX TOTAL 00000000
8:RX TOTAL 00000000
8:RX ERROR 00000000
All data is based on payload packets. Incoming network data may be divided
up into multiple packets for over-the-air transfers. The number before the
colon represents the zone.
TX TOTAL
is the transmit packet total.
RX TOTAL
is
the receive packet total.
RX ERROR
is the total number of received packets
with CRC errors. All zone data is reset with the
ZONE CLEAR
command.
7.0 TROUBLESHOOTING
Successful troubleshooting of an MDS transceiver system is not difficult, 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, especially
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).
• In store-and-forward systems there are several areas that must be
carefully evaluated:
• Duplicate
XADDR
values on
MODE M
and
MODE X
radios will cause
failures unless the radios are far enough apart to not hear each other.
• Errors in the synchronization qualifiers,
XPRI
and
XMAP
, on
corresponding Remote radios.
•
SAF
must be enabled at the Master