4P20 4
CONNECTORS
ETHERNET CONNECTORS
J2 and J3 are the 4P20's feedthrough Ethernet connectors. J2 is the upstream
connector that connects to a POE enabled HUB. J3 is the downstream connector that
connects (usually via a short patch cable) to the PC104-PLUS CPU’s Ethernet port.
5V AUX OUT
P1 is an alternate connection to the 4P20's 5V output. It can be used as a
convenient power tap for non-PC/104-plus devices.
P1 PINOUT
PIN1
5V
PIN2
GROUND
FAUX IN
If POE power is not available, the FAUX input allows the 4P20 to be powered from
an external source. The FAUX input share the same current limiting as the POE input. This
limits the lowest voltage the 4P20 will operate with full power out. The FAUX input can
range from +36 to +60 VDC.
P2 PINOUT
PIN1
+36 to +60 VDC
PIN2
INPUT COMMON
RAUX IN
Like the FAUX input, the RAUX input allows the 4P20 to be powered from an
external source. Unlike the FAUX input, the RAUX input does not have an input current
limit and therefore has a larger input volatge range. The RAUX input can range from +18
to +60 VDC.
PIN1
+18 to +60 VDC
PIN2
INPUT COMMON
