M2M Control CX320 Technical Manual V1.01
Page 16 of 42
Mini USB-B Connector
This USB port is for programming and communication with the M2M Control IDE or other RACP
compliant applications. A standard USB cable can be used between the device and the PC.
Ethernet / LAN
This is a standard 10Base-T/100Base-TX IEEE 802.3 compliant RJ45 Ethernet connector.
Please use an appropriate connector and cable, such as a standard CAT-5 twisted pair patch cable
The connector has the following LED indicators that show the LINK status and communication
activity.
Power Supply
The M2M Control CX320 device must be supplied with 8..36 VDC from an external DC power source.
Positive power is applied to the SUPP pin and the ground to the PGND pin.
There are three different ground labels for ground connections: Supply ground (PGND), signal
ground (SGND), and analog ground (AGND).
The signal and the analog grounds are filtered from the power ground. Power ground must only be
used as a power supply return path.
The M2M Control CX320 is protected against wrong polarity. If a chassis or system ground is
connected to either SGND or AGND, a wrong polarity on the supply lines will destroy the internal
GND connection.
The M2M Control CX320 contains an internal backup battery, which will supply the device if the
external power supply fails or is disconnected. By default, the CX320 is powered down when a power
failure occurs. This setting, however, can be changed. Please consult the M2M Control IDE online
help for more information. When the wakeup/ignition inputs are activated with a logical high, the
M2M Control CX320 device will wake up from a power-down mode.
Power supply pins
Pin
Name
Description
27
PGND
Power ground, negative (-) connection
28
SUPP
Power supply, positive (+) connection
29
SUPP
Power supply, positive (+) connection