====== Communication Module ======

The MOACON can support up to 3 RS-232/485 channels. One (channel 0) is built into the CPU Module.
Channels 1 and 2 can be found on the Communication Module.

{{ :moacon:dp-comm2:dpcomm2.png?nolink |}}

RS-232 pin configuration is shown in the image below. Like channel 0, channels 1 and 2 have a 5V power
source on pin 9, but unlike channel 0, it cannot be turned off.

{{ :moacon:dp-comm2:moacon_rs232c_port.png?nolink |}}

On the Communication Module, channel 1 is dedicated to RS-232, but channel 2 can be switched between
RS-232 and RS-485.

{{ :moacon:dp-comm2:dpcomm2_dipsw.png?nolink |}}

====== Installing Communication Module ======

Only one Communication Module can be installed at a time. 
{{ :moacon:dp-comm2:specialmodule_location.png?nolink |}}

As shown in the image above, Communication Module can be installed in any vacant slot on the 10-slot
main board. Cannot be installed in the expansion boards.

**WARNING: Do not plug or unplug modules while the power is on.**