Installation and Setup
X-320M™ User's Manual
14-pin Connector Pinout
Pin
Description
Vin+
Power Supply VDC+.
9-28 VDC for model X-320M-I.
DO NOT EXCEED MAXIMUM POWER SUPPLY VOLTAGE.
Vin-
VDC- (Ground) power supply input.
Ain1
Analog Input 1 used with 0-5 V analog sensors, such as
temp, solar, humidity, and barometric pressure.
Ain2
Analog Input 2.
Ain3
Analog Input 3.
Ain4
Analog Input 4.
5V Rf
+5 VDC reference output for analog sensors.
AGnd
Analog Ground for Analog inputs.
Gnd
Digital Ground for 5V Out return used with Outputs, Inputs,
Frequency inputs, and digital Temperature/ Humidity sensors.
5V Out
+5 VDC Output. Voltage output for digital inputs and for the
digital temperature and humidity sensors.
D I/O 1
Digital I/O 1 can be configured as logic input, output, rate, or
counter. Programmable pull-up resistor for input mode.
D I/O 2
Digital I/O 2, same as above.
FreqIn
AC frequency counter.
Data
Temperature/Humidity Data Input for “1-wire” digital
temperature and humidity sensors.
2.2.1 Power Supply Connection
X-320M™ requires power for its internal logic circuits. Connect a 9-28 VDC power supply to the Vin+
and Vin- terminals. Note that a regulated power supply is recommended, such as a wall-mount AC-DC
adapter, or POE Injector and Splitter. Verify that the adapter is rated for the operating current of X-
320M™ (See
Appendix G: Specifications
for current requirements.)
Note: Vin- should be tied to Earth ground.
Multiple X-320M™ units may be connected to a single power supply by connecting the power supply
input terminals in parallel. The power supply must have a high enough current rating to power all units
connected. (See
Appendix G: Specification
s for current requirements.)
Page 16
Xytronix Research & Design, Inc.
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