NorthStar 957 Installation Instruction

Page of 70
957 INSTALLATION MANUAL, Revision C1
Page 63
APPENDIX A: 
957 system 
technical 
specifications 
Table 14: 957 technical specifications
Physical features/environmental
Interfacing 
Waterproof control head
Two bi-directional NMEA I/O ports, 1 AUX port
10.4” diagonal color LCD
Two bi-directional RS-232 ports
Unsurpassed sunlight viewability
Interfaces to optional Northstar 490 for fishfinding 
640x480 pixel, hi-temp, backlit, transmissive color 
LCD
Flush mount standard
Waypoint upload/download capability to a PC (with 
appropriate software)
High-contrast anti-reflective screen
Waterproof chart cartridge door
One VGA out port (connects to Northstar 1201 
monitor and others)
Large, easy-to-use backlit controls
One VIDEO in port
Easy interfacing I/O plugs
NMEA input sentences: WPL and others
0 degrees Celsius - 55 degrees Celsius max 95% 
relative humidity, noncondensing
10 - 36 volts DC power
200 PPNM speed output
Honk output
NMEA output sentences: APB, BOD, BWC, GGA, 
GLC, GLL, GSA, GSV, LCD, HSC, MSS, RNN, RMC, 
RMA, RMB, VTG, WCV, XTE, ZDA, ZTG. (Conforms 
to NMEA v 2.0 and later. Supports 1.5 GLL and 
BWC.)
Accepts most external loran receivers
Waypoint and route transfer between two 957’s (or a 
957 and a Northstar 941/951/952)