Connections
The GeoSwitch has 16 screw terminals which allow for connection of power, serial
connection, clear switch and three relays.
Connector
Pin
Name
Comment
J2
01
1
+9-28 VDC
Power line for external power supply
2
GND
Ground line for external power supply
3
TXD/A
TXD line of RS232 interface or A line of
RS485 interface (MODBUS)
4
RXD/B
RXD line of RS232 interface or B line of
RS485 interface (MODBUS)
5
GND
Ground line for RS232 or RS485 interface
(MODBUS)
6
CLR_SW
Clear Switch input
7
GND
Ground line for Clear Switch input
8
K1_NC
Normally closed contact of relay 1
9
K1_CMN
Common contact of relay 1
10
K1_NO
Normally opened contact of relay 1
11
K2_NC
Normally closed contact of relay 2
12
K2_CMN
Common contact of relay 2
13
K2_NO
Normally opened contact of relay 2
14
K3_NC
Normally closed contact of relay 3
15
K3_CMN
Common contact of relay 3
16
K3_NO
Normally opened contact of relay 3
For the pin colour code of the supplied GeoSwitch cable please refer to Appendix D and
E in the user manual or check the GeoSwitch Cable drawing supplied with the product.
Further reading
For further reading on operation and correct use of the instrument, please refer to the user
manual and datasheet which are available from the GeoSIG Ltd website: www.geosig.com
GeoSwitch Quick User Manual
V3
GeoSIG Ltd, Wiesenstrasse 39, 8952 Schlieren, Switzerland
Phone: + 41 44 810 2150, Fax: + 41 44 810 2350
[email protected], www.geosig.com