Raytheon STD 21 GPS Operation Manual page 46

Terminal
1
2
3
4
5
6
7
8
9
10
11
12
13*
Terminal board B3
1
Terminal board B1
* Terminal board/Antenna Unit with development status E02
Figure 33: Antenna Unit, connecting the cable cores
3717/110--850.DOC020002
Satellite Compass
Designation
PPS + (pulses per second)
PPS-- (pulses per second)
0VDC (Antenna Unit supply)
24VDC (Antenna Unit supply)
TX2-- (Transmit data, RS422 interface 2)
TX2+ (Transmit data, RS422 interface 2)
RX2-- (Receive data, RS422 interface 2)
RX2+ (Receive data, RS422 interface 2)
TX1-- (Transmit data, RS422 interface 1)
TX1+ (Transmit data, RS422 interface 1)
RX1-- (Receive data, RS422 interface 1)
RX1+ (Receive data, RS422 interface 1)
Reference to RS422
Terminal board B2
12
STD 21 GPS
Terminal board B3
1
Terminal board B1*
38
connected to
Processor Unit
terminal board A1
PPS+
PPS--
0VDC
24VDC
RX2--
RX2+
TX2--
TX2+
RX1--
RX1+
TX1--
TX1+
GND
Terminal board B2
13
Edition: Jan. 16, 2009