Keyscan Inc. A Member of the Kaba Group – CA150 Rev. B Installation Guide (07.15)
Terminate Wiring at the ACU
The following sub-sections review lock, input, reader and auxiliary output wiring at the ACU.
PoE
Before terminating connections at the control unit and if you are using power over Ethernet (PoE Class 0),
please note the CA150 PoE power supply has a 680mA @ 12V maximum – approx. 8 Watts – current rating.
The total number of connected hardware devices including the door strike cannot exceed this threshold;
otherwise, a separate +12V DC power supply with a sufficient current rating is required. For more information
on PoE, refer to page 9.
Do not use PoE to power a magnetic lock or similar device. Either, power the CA150 control board or the mag
lock from a dedicated +12V DC supply.
Output Relays
The CA150 has 1 door output for terminating a door lock or magnetic lock and 1 auxiliary output for
terminating an alarm/hardware device.
Powered / Unpowered
The door output relay and the AUX output relay are each fused at 500 mA. Depending on the current demand
of the device connected to the output, each output must be jumpered as indicated below:
Powered – device is powered from the CA150 relay output (500 mA or less) – Counter EMF diode (CEMF)
connected at terminal block
Unpowered – CA150 provides a dry contact, but the device requires an independent power source (over
500 mA) – Counter EMF diode (CEMF) connected at strike or maglock
Jumper settings are shown in the respective wiring diagrams or refer to page 50.
Table 2 – Relay Specifications
Output Relay Specifications
Form C contacts, 30 VDC 4 Amps, 24 VAC 8 Amps
1 door output, 1 aux output
Door output relay – powered/unpowered
AUX output relay – Powered/Unpowered
Important
Counter-EMF diodes (CEMF) are supplied with Keyscan access control unit(s).
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