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SPSx51 Modular GPS Receivers User Guide 175
Receiver Connector Pinout Information I
Modem multi-function port
Pin 1 is top left
Pin Usage
1 RS-232 Modem port data terminal ready (DTR)
2 RS-232 Modem port clear to send (CTS)
3 RS-232 Modem port Data Set Ready (DSR)
4 RS-232 Modem port Data Carrier Detect (DCD)
5 RS-232 Modem port Ring Indicator (RI)
6GND
7 RS-232 Modem port 2 Transmit Data (TX)
8 RS-232 Modem port 2 Receive Data (RX)
9USB+
10 Ethernet Ground (ET_GND RJ45 Pin 4)
11 RS-232 Modem port Ready to Send (TX)
12 RS-232 Modem port Transmit Data (TX)
13 Ethernet Ground (GND RJ45 Pin 5)
14 Ethernet Ground (GND RJ45 Pin 8)
15 USB ID
16 Ethernet Receive Data+ (RD-RJ45 Pin 6)
17 Ethernet Transmit Data+ (RD-RJ45 Pin 2)
18 USB-
19 USB Power
20 1PPS
21 RS-232 Modem Port Receive Data (RX)
22 Ethernet Ground (GND RJ45 Pin 7)
23 GND
24 DC Power In 9–28 V DC
25 Ethernet Receive Data+ (RD+, RJ45 Pin 3)
26 Ethernet Transmit Data+ (TD+, RJ45 Pin 1)
Pin 10 is middle left
Pin 19 is bottom left
Pin 18 is middle right
Pin 9 is top right
Pin 26 is bottom right