RTcom Radio Modems user manual Configuration, Pin Number Designation WRT Modem

Pin Number	Designation WRT Modem	Notes
1	DCD	Optional not
		normally needed
2	RX (data)	RS232 input
		data to modem
3	TX(data)	RS232 output
		data from
		modem
4	RTS	Optional not
		normally needed
5	GND	Ground
6	B RX(-)	RS485/RS422
7	A RX(+)	"
8	+Vs	Supply 7.5 to
		15V dc
9	N/C
10	GND	Ground
11	Z = TX(-)	RS485/RS422
12	Y = TX(+)	"
13	+Vs	Optional supply
		connection.
14	GND	Optional
15	+ Vs	Optional supply
		connection

Connections for the Universal & Plastic Housed Global Modem

Note with RS422 & RS485 connections it is the rosponsibility of the system builder to ensure that the connections are correctly terminated. Normally cables with an impedance > 100 Ohms should be used and terminating resistors (120R bwtween A-B and Z-Y) may aslo be required.

CONFIGURATION:-

Depending upon the model of the modem you will be able to select one of the communication configurations listed below:-

VHF :	UHF:	VHF/UHF	UHF: MPT1329
MPT1328	MPT1329	RTcom-Max	RTcom-Global
RTcom-Outback	RTcom-Outback
1200-2400bps	1200-4800bps	2400 fixed	2400-9600bps
7 & 8 bit ASCII	7 & 8 bit ASCII	7 & 8 bit ASCII	7 & 8 bit ASCII
Even & odd parity	Even & odd parity	Even & odd	Even & odd parity
		Parity
1 or 2 Stop bits	1 or 2 stop bits	1 or 2 stop bits	1 or 2 stop bits

Operating Modes available with the Global, Max and Outback Modems

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