User's Manual Part 2

29
Connector pin-outs
NAV-7 rear panel connections:
• The auxiliary alarm contact is capable of switching up to 24 V DC at up to 1 A
(inductive load). The contacts are not connected to any internal voltages.
• The power supply input is isolated from the case and antenna. It must remain
within the range 10.8 – 31.2 V DC (12/24 V DC nominal) at all times.
TNC RF connector
1
/
8
” Spade terminal – ground pin
9-way D-type – NMEA 0183 & printer port
USB connector – for in-field programming
15-way D-type – power and IBS port and alarm relay