Figure 70 - Hid Iclass Keyr40 - Keyscan CA250B Technical Instructions

Diagram illustrates connections
and cables for Rev A.
Note
Rev B & Rev C do not require
separate power supply. Connect
Red wire to PWR RED terminal
on ACU reader terminal.
Connect shield to ACU ground
lug. 18 or 22 AWG shielded
cable acceptable.
Yellow (Beeper) used for pre-alert
otherwise isolate and tape back.
If connecting external sound device,
see Pre-Alert Relay Option or refer to
ACU cut sheet enclosed with panel
for ACU/OCB8 relay assignments.
Note - If Pre-alert is connected,
the reader cannot read any
HID 125 kHz-compatible card
during the pre-alert beep.
to separate DC
power supply
VDC + -
KI-00207E-10-13
Keyscan Inc. – Technical Guide (PC109x - 04.15)
Figure 70 – HID iClass KEYR40
ACU Ground
Lug
Shield
Black
Red
C1 LED D1
(BEEP)
Reader terminal on control board
Rev. A – 260 mA
Rev. B – 75 mA
Rev. C – 121 mA
Shield not connected.
Isolate with electrical
6 conductors shielded 18 AWG
Maximum - 500 ft (152.4 m)
D0 PWR GND
WHT GRN RED BLK
tape.
104