User guide

SATELLINE-3AS NMS / NMS Epic / NMS 869 / VHF
User Guide, Version 1.0
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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, NMS Epic, NMS 869, 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...