GMS-GPS User Manual
02.09.2022 / V3
5 / 19
1. Introduction
This document describes the principle of operation and installation instructions of the GPS.
The GPS device is used with GeoSIG Instruments to provide the global coordinates of the GPS
antenna and accurate date and time to the Instruments. It’s very useful for precise synchronisation of
one or several interconnected Instruments.
a
GPS provides only UTC time at 0° Greenwich meridian without daylight savings time
adjustment.
The GPS device is provided in a box with a cable length to be defined at the time of order or provided
by the customer.
2. GPS Cable
Two different cables can be used according to connection:
GPS - RS-232 (standard):
Up to 70 meters of cable length
GPS - RS-485:
Up to 300 meters of cable length
2.1. GPS RS-232 cable
For the RS-232 connection, the cable used by default is:
a
GeoSIG standard cable type: XY DIN 5 x 0.25 mm
2
gr UL style 2464.
Figure 1. Example of GPS device RS-232 assembled with 20 m of cable for an Instrument
2.2. GPS RS-485 cable
For the RS-485 connection, the cable used by default is:
a
GeoSIG standard cable type: LiY(St)CY 300V 4 x 2 x 0.25 mm
2
gr UL Style 2464
.
Figure 2. Example of GPS device RS-485 assembled with 20 m of cable for an Instrument
Summary of Contents for GMS-GPS
Page 1: ...GMS GPS User Manual...
