MDS 05-3624A01, Rev. B
OEM Series™ I/O Guide
13
3.0
OPERATION
In-service operation of the transceiver is completely automatic. Once
the unit has been properly installed and configured, operator actions are
limited to observing the radio’s LED status indicators for proper
operation.
3.1 Initial Startup
If all parameters are set correctly, operation of the radio can be started
with these steps:
1. Apply DC power to the transceiver.
2. Observe the LED status panel for the proper indications (see
).
3. If not done earlier, refine the antenna heading of the station to
maximize the received signal strength (RSSI) from the master
station. Use the
RSSI
command from a terminal interface connected
to the radio’s
DATA INTERFACE
connector.—See
3.2 LED Indicators
The transceiver includes four status LEDs visible from the top of the
unit, behind the Data Interface connector.
describes the function
of each status LED.
RXD
TXD
DCD
PWR
Table 5. LED Status Indicators
LED Name
Description
PWR
(Power)
• Continuous—Power is applied to the radio, no problems
detected.
• Rapid flash (five times-per-second)—Fault indication.
• Flashing once every second—Unit is not programmed. Radio is
in Bootloader mode.
DCD
(Data Carrier
Detect)
Flashing—Indicates another radio (with the same network
address) is transmitting at the radio’s receive frequency.
RXD
(Receive Data)
Receive data is present on DATA INTERFACE connector.
TXD
(Transmit Data)
Transmit data is present on DATA INTERFACE connector.
