Operating instructions

1892 1335 - Orion Radio Modem Operating Instructions - v2.9 / Aug 2009 89
Digital Inputs, Analogue Inputs, Analogue Outputs: Adaptor 01146 0200 A
Digital inputs: connect to Port 2 on the Orion
Analogue inputs: connect to Port 3 on the Orion
Analogue outputs: connect to Port 4 on the Orion
Connector pins are used as follows:
Pin
No.
Port 1
Digital Out
Port 2
Digital In
Port 3
Analogue In
Port 4
Analogue Out
1
Use adaptor 01146 0201 A
0V 0V 0V
2 0V 0V 0V
3 Digital In 1 Analogue In 1 Analogue Out 1
4 Digital In 2 Analogue In 2 Analogue Out 2
5 Digital In 3 Analogue In 3 Analogue Out 3
6 Digital In 4 Analogue In 4 Analogue Out 4
7 0V 0V 0V
8 0V 0V 0V
Notes: The value of the RSSI can be programmed by command ATS310 to appear on
any one of the analogue outputs if required.
In order to test the transmitter, any one of the digital inputs can be programmed
by command ATS316 to operate as PTT, i.e. pull to 0V to transmit.
LED indicators are connected across each line via a 1K resistor, and are intended to
indicate a digital high input, although they will also indicate higher analogue inputs and
outputs. They draw approximately 10mA at 12V. A digital or analogue input must be able to
provide this. When used as an analogue output, the LEDs function on 5V, 10V and 20mA
loop settings. Approximately 10mA of analogue output will be available from the Orion on its
5V and 10V settings.