LBI-39190
40
RF Control Stations
Problem
Corrective Actions
RF control stations
do not transmitt (no
“TX DATA”
display).
1. Verify that the RF control stations are feature encrypted (when turning on the power
of the RF control station, the control head should display “DATA ON”).
2. Verify that the RF control stations are physically connected to a Data Advantage port.
3. Verify that the jumpers of the SCI-232 modules are set as DTE.
4. Verify that the baud rate of RF control stations is programmed correctly (19,200 bps).
5. Check fuse 3 on VCOM24 Board(s).
6. Verify that RF power supply is working.
7. Verify that the RF control station is not in programming mode. Ensure that the toggle
switch on the front of the RF control station shelf is in “Normal” position.
RF control stations
can not transmit
data to radio, but
the “TX DATA” on
the RF control
station is displayed.
This problem
occurs even if there
is no other traffic
on the EDACS site.
1. Verify that the destination radio is locked onto the same site as the RF control
stations.
2. Verify that the LID programmed into the RF control station is correct. A LID of RF
control station is programmed correctly if (a) the radio is programmed as Data Host
and (b) the LID is in the range (1 - 63).
3. Verify that the antenna system of both the radios and the site is set up properly.
Check the RF channel statistics. If there is a channel with excessive number of “Bad
Packets” then the RF system on that channel is not set up properly.
4. Verify that the destination radio is in the RF coverage area, and the signaling
environment is acceptable.
Radio is
transmitting, but no
RF control station
receives the call.
There is no
“RX DATA”
display on the RF
control station.
1. Verify that radio is sending the data call to one of the LIDs assigned to RF control
stations.
2. Verify that the LIDs programmed into the RF control stations are correct. A correct
LID of RF control station must satisfy two conditions: (a) the radio is programmed as
Data Host, and (b) the LID is in the range 1-63.
3. Verify that the radio and the RF control station are locked onto the same EDACS site.
4. Verify that the RF control stations are feature encrypted. When turning on the power
of the RF control station, the control head should display “DATA ON”.
5. Verify that the RF control station is not in programming mode.
6. Verify that the transmitter power levels of the RF control stations are set correctly.
Radio is
transmitting and
the RF control
station displays
“RX DATA”, but
the Data Advantage
fails to receive
data.
1. Verify that the BREN Anti-Biasing in both the RDT and the RF control station is
enabled. Check the personality of both the radio and the RF control station.
2. Verify that the baud rate of RF control station is programmed correctly (19,200 bps).
3. Verify that the RF signaling environment is acceptable.