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WEX 300 Electrical Management.
Revision 2
7 System Description
7.1 Digital Inputs, Outputs and LEDs
The WEX300 has 20 digital inputs which can be setup in the configuration on
the WDC 100\200 NX. These inputs are 3.5mm stereo jack plugs to connect
to push buttons, optional remote controls and lighting switches and are
located on the bottom of the WEX300 housing. Below is a layout of the
connections on the bottom of the WEX300 unit.
Figure 4 Input Connections
From Figure 4 above SKT1 denotes Jack 1 and the numbering follows this
down to SKT20 which denotes Jack 20 in the configuration software. The Tip
of the 3.5mm jack is reserved for these input signals and the screen is
grounded. The Ring of the jack is reserved for the LED\Digital outputs and
are denoted as “LED” in the Configuration software, these are for input status
feedback. The behaviour of the LEDs is displayed below in Table 1.
ON (colour)
OFF
Power
WEX300 is receiving healthy
power (Orange)
WEX300 has no power
Fault
Communications has been lost
with the Relay or Metering card.
(Red)
WEX300 has healthy
communications to its slave
cards
CAN
CAN packet received (Green)
No CAN communications
Table 1 LED Indicators
