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Introduction
The Crystal.PoE controller is a single door access control unit which takes its power from the same
Ethernet cable that provides communication. This can save installation time and can be used where it is
impractical to get a mains supply.
The switch used to connect to the controller will need to be a PoE switch or have an external PoE injector
to add power to the data cable. The switch or injector should be IEEE 802.3af 15.4W type or better.
At the controller end the power and data are split and 12V is made available at 1.0 Amps.
Normal Hub
or Switch
POE Injector
Document Number: MAN0038
PoE Data Patch
plug in here
POE Hub / Switch
Power & Data
4003
Crystal.PoE
Crystal.PoE
Issue: 2
4003 Crystal.PoE
Power & Data
4003
Page 2 of 4
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