Interfacing The 2505 - NorthStar 2505 Installation Manual

Interfacing the
2505
Connecting the 2505 to
other equipment
Pin Description
1 BDM control input A (RS-422)
2 Ground
3 GPS primary input B (RS-422)
4 BDM RTCM SC-104 output B (RS-422)
5 GPS primary output A (RS-422)
6 GPS primary output (RS-232)
7 GPS primary input (RS-232)
8 Ground
9 BDM monitor output (RS-232)
10 BDM monitor input (RS-232)
11 Configuration pin B (leave OPEN)
POWER ON
12
25 if no remote control)
13 (-) DC power input (ground)
a. Pins 11, 23, and 24 have been left open for future use.
2505 INSTALLATION MANUAL, Revision A
The 2505 is easily interfaced to other equipment using the
NMEA 0183 data format. Table 3 below lists the hardware port
numbers and the signal levels available on the connector pins
for a normal installation. Pins 6, 7, 8, 12, 13, and 25 (in bold
type) are the minimum connections required to operate the
2505. Choose either RS-422 or RS-232 pins as required by the
equipment to which you're interfacing. For input/output
options, see "Appendix A Technical specifications" on page 19,
and for input/output protocols, see "Appendix C NMEA output
protocol" on page 23.
Table 3: Standard connector pinouts
a
control (connect to pin
SECTION TWO Installing and interfacing the 2505
Pin Description
14 BDM control input B (RS-422)
15 GPS primary input A (RS-422)
16 BDM RTCM SC-104 output A (RS-422)
17 Ground
18 GPS primary output B (RS-422)
19 Ground
20 BDM RTCM SC-104 output (RS-232)
21 BDM control input (RS-232)
22 Not Used
23 Configuration pin A (leave OPEN)
24 Configuration pin C (leave OPEN)
25 (+) DC power input
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