5
cybox GW-P
installation manual
3.2
Power Supply
3.2.1
Local Power Input
CyBox GW-P can be powered by a DC power source connected to the power supply connector, shown in
Table 1. The nominal input voltage can vary between 24 V and 110 VDC.
3.3
M12 service interface (USB and serial ports)
CyBox GW-P is equipped with USB and serial ports. The USB port can be used to attach a memory device
to update the firmare or configuration of the wireless gateway.
Note that the USB port is a dedicated maintenance port. It is not designed to be used while the device is
in operation inside rolling stock equipment.
Table 3 shows the pin-assignment of the power supply connector.
Table 3
Pin Assignment of the M12 service connector
Pin
Signal Name
Description
1
2
3
4
5
6
7
8
1
USB
VCC
USB positive power supply voltage
2
USBD-
USB positive data line
3
USBD+
USB negative data line
4
USB
GND
USB negative power supply voltage
5
n.c.
Not connected
6
RS323-TX
Console Port Transmit Data
7
RS232-RX
Console Port Receive Data
8
RS232-GND
Console Port Ground