
SATELLINE-3AS NMS / Epic NMS / VHF
User Guide, Version 3.0
78
14.2
Wiring
14.2.1
RS-232 wiring - both Ports 1&2 connected (DATA and NMS in use)
A typical connection between a radio modem and the PC serial ports (RS-232) is depicted in the
schematic below. One of the ports serves as the DATA port while the other is for NMS.
NOTE!
When installing the cables of the serial interface, the operating voltage of all devices must
be off (POWER OFF condition).
Due to the greater current consumption of SATELLINE-3AS Epic NMS operating voltage
must be connected to pins 14 AND 15, and ground to pins 7 AND 8. Correct fuse rating is
in this case 4 A (SLOW FUSE).