Trimble Outdoors SPSX51 User Manual

SPSx51 Modular GPS Receivers User Guide     

Features and Functions     

Figure 2.2

Rear view of the receiver

1

TNC

Connect to the GPS antenna

2

• TNC (450 MHz Internal 

radio) 

• Reverse polarity TNC 

(900 MHz internal radio)

• Not installed, system without 

internal radio

Connect to the radio antenna

3

Vent plug

External venting plug for pressure equalization

4

High Density 
DB26

• Ethernet connectivity to a 10/100 Base-T network through an 

RJ45 jack on a multiport adaptor (P/N 57167)

• 'Slave' USB communications through the USB type B 

connector on the multiport adaptor (P/N 57167)

• 'Host' USB communications through the USB type A 

connector on the 26-pin to Hirose adaptor (P/N 56653-10) and 
Hirose to USB type A cable (P/N 73841001)

• Primary power from a Trimble AC/DC power supply 

(P/N 62546) using the multiport adaptor (P/N 57167)

• Power input from an SPS700 total station battery cradle 

system using the adaptor

 

(P/N 56653-10)

• Full 9-wire RS-232 serial communications using the 26-9-pin 

multiport adaptor (P/N 57168) or a 26-pin serial 
communications cable

• 1PPS, 2 x RS-232 input DC, USB, Ethernet cable (P/N 60789-00)

5

Lemo (7-pin/0-shell)

• 3 wire RS-232 serial communications using a 7-pin/ 0 shell 

Lemo cable

• Secondary power from a Trimble battery (P/N 32364-00 or 

32365-00) or a 12 V battery using the Fused Lemo Power 
Cable (P/N 46125-20)

• CAN

1

4

3

5

2