SATELLINE-3AS NMS / Epic NMS / VHF
User Guide, Version 3.0
27
4
INTERFACE - CONNECTORS & LEDS
4.1
Antenna connector
TNC female 50
connector.
The antenna should always be connected when the power is on. Removing the antenna while
the transmitter is on may damage the power amplifier inside the transmitter.
4.2
LED indicators
There are five (5) LEDs indicating the status of the serial port (
DATA
port) and the radio interface
on the front panel of the radio modem. See the table below for the description of operation.
Table 4.1.
SATELLINE-3AS(d) NMS, Epic NMS AND VHF LED INDICATORS
LED
Indication
OFF
Red
Orange
Green
RTS
RTS-line status (D15 Pin 13)
Inactive
Active
-
-
CTS
CTS-line status (D15 Pin 6)
Inactive
Active
-
-
TD
TD-line status (D15 Pin 11)
TD
indicates that the radio modem
is receiving data via serial port.
No data
Data
-
Test Tx active
RD
RD-line status (D15 Pin 9)
RD
indicates that the radio modem
is sending data via serial port.
No data
Data
-
-
CD
CD
indicates the status of the radio
interface.
No signal
Transmitter
is ON
Noise
Reception
Note
*)
The status of CD-line (D15 connector pin 2) may differ from the status of CD LED.
LED ERROR CODES:
In case the self-diagnostics routine of the radio modem detects a malfunction in the start
up, ALL LEDs shine red for 1 second after which the error code is indicated.
When the self-diagnostics function of the modem discovers an error, the modem will go to the
ERROR-state. In the ERROR-state the data transmission and reception are disabled. Instead of
data transfer, the LED indicators follow the sequence: All LEDs ON -> All LEDs OFF -> ERROR
code -> All LEDs ON...