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OBSERVATOR
Instruments
Technical User Manual
OMC-045-II
2.6 Connections
(general)
GPS antenna
GPRS antenna
3.6V battery connector
FUSE
X1 USB mini-B connector.
SIM card holder
SD card holder
X2
X3
X4
X2 Connector Layout: power inputs, power outputs, and display
terminal
name
Description
X2.1
GND
X2.2
VIN
Power supply input for 10-30V
(not used for OMC-045-II-regen)
X2.3
GND
X2.4
VOUT1+
X2.5
GND
X2.6
VOUT1+
Switched power supply output for
sensors (output 1)
Terminals X2.4 and X2.6 are internally
interconnected
X2.7
GND
X2.8
VOUT2+
X2.9
GND
X2.10
VOUT2+
Switched power supply output for
sensors (output 2)
Terminals X2.8 and X2.10 are internally
interconnected
X2.11
GND
X2.12
LEDOUT
Connection for external red LED. LED
function is identical to the LED on the
top of the OMC-045-II
X2.13
GND
X2.14
VOUTCONT
X2.15
TXDIS
Data logger
Display
X2.16
RXDIS
Reserved for connections of an external
display
Data logger
Display
Warning:
The voltage on VOUT1, VOUT2, and VOUTCONT is (almost) equal to the power supply
voltage. Take care that this voltage is compatible to the connected sensors
