GeoSIG GSR-12 User Manual page 10

GeoSIG Ltd.
Page 4
Instrument. It carries the output signals from the sensor(s) and the test signals from the Instrument.
The SENSOR connector provides +12 VDC power to the sensor(s). Different types of sensors with
following sensor voltage output ranges are supported:
• GCR 12 / 16 recorders:
2.5 VDC ± 2.5 VDC
• AS-12 / 16 and GSR-12 / 16 / 18 recorders:
standard:
0 ± 10 VDC (20 Vpp) or 0 ± 2.5 VDC (5 Vpp) differential
optional:
0 ± 5 VDC (10 Vpp) differential
0 ± 20 VDC (40 Vpp) differential
RS-232
This connector is typically for attaching a PC to the Instrument for configuring operating parameters,
retrieving data or performing system tests. Maximum data rate is 115'200 Baud.
INTERCON (Optional)
This connector allows the Instrument to be interconnected to a recording array. Different types of
interconnections may be realised, please refer to separate documentation from GeoSIG.
OPTION (Optional)
Two options are supported by the option connector:
• The alarm option gives two different output signals (relay contacts) to activate alarm indicators
such as buzzer or flashlights.
• The connector is also used to connect an external time source such as GPS to the Instrument. The
signal of this external source can be either a pulse or an RS-232 level signal.
POWER
Through this four-pin connector the internal battery charger is supplied with 115/230 VAC power.
Alternatively, external batteries for powering the Instrument may be connected here (with DC Input
Option).
GS_GSR_GCR_UserManual_V21.doc / 18.09.2009
Figure 3. Connectivity Options
GSR / GCR / AS User Manual