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SIRIUS

® 

TECHNICAL REFERENCE MANUAL 



4.4.2. SBOX common connectors 

4.4.2.1. GPS connector (DSUB-9) 

Used for connecting RTK modem or display: 

● External VGPS-DISP can be connected to receive and display NMEA parameters if internal GNSS              

receiver is used (TOPCON) 

● RTK modem (RF or LTE) can be connected to receive or transmit RTK corrections if RTK license is                  

available on the receiver 

● GNSS receiver can work as an RTK rover (receive RTK data) or as a base station (transmit RTK                  

data) 

GPS port A is used for VGPS-DISP or for the RTK-modem when RTK option is in use. GPS port D is                     

reserved. Do not connect! 



GPS connector: pin-out (DSUB-9 female) 



Pin 

Name 

Description 

1 

+5V 

+5 V (max. 0.5 A) 

See 1. 

2 

Tx Ch A 

TXD GPS port A 

3 

Rx Ch A 

RXD GPS port A 

4 

PPS 

GPS PPS 

5 

GND 

Ground 

6 

Remote-On 

7 

Rx Ch D 

RXD GPS port D 

8 

Tx Ch D 

TXD GPS port D 

9 

+12V 

+12 V (max. 0.5 A) 

See 1. 

1.) The voltages and the Remote-On features are always        

available, but the GPS data and PPS are only available          

when you have one of the GPS options. 



VGPS-DISP external display 



The VGPS-DISP display can be directly connected to        

any of our GPS devices and will display: 

● speed, 

● heading, 

● altitude, 

● time and 

● number of satellites in reach. 



SIRIUS

V20-1 51 / 336  

Brand	DEWESOFT
Model	SIRIUS-SBOXe
Category	Data Loggers
Language	English

DEWESOFT SIRIUS-SBOXe User Manual

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DEWESOFT SIRIUS-SBOXe Specifications

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