User's Guide

10
Configuring the RS422 Receiver
The receiving device (a PC running charting software, or similar) needs to
be configured so that it can receive the NAVTEX messages output from the
ICS NAV5plus. Set up the RS422 receiver’s communication port as:
Baud rate 4800
8 data bits
1 stop bit
no parity
XON/XOFF
Connecting to an RS422 Device
If the receiver is an RS422 device then only 2 connections are required:
Pin
ICS NAV5plus
Connection
RS422 Receiver Connection
3 Output (Y) Input (A)
4 Output (Z) Input (B)
Note that, because receiver terminology varies between manufacturers, it
may be necessary to swap the two connections for the receiver to function
correctly. Don’t worry – you won’t damage the interface.
Connecting to a RS232 Device
If the receiver is a RS232 device, eg a computer serial (COM) port, then a
RS422 to RS232 converter is required.
A suitable converter is Amplicon ‘Model 485F9/485H9’, although any similar
product should be compatible. Be sure to follow the connection instructions
supplied with your converter.