Honeywell MPA1C1 Installation Manual page 16

MPA1ENCP Plastic Enclosure Installation
If the US gang box is not available or used, a plastic enclosure
with tamper is available as MPA1ENCP.
The MPA1C1 Controller slides and snaps into the enclosure
inner base without using any tools.
Make sure that the RJ45 Connector is on the outer left side.
The below figures show how to insert the MPA1C1 controller in
the MPA1ENCP inner base.
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