Keyscan CA250B, Technical Instructions

Page: 104 / 140

Keyscan Inc. – Technical Guide (PC109x - 04.15) 104
Figure 70 – HID iClass KEYR40
Shield not connected.
Isolate with electrical
tape.
6 conductors shielded 18 AWG
Maximum - 500 ft (152.4 m)
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.
L
E
D
(
O
ra
n
g
e
)
D
1
(
W
h
ite
)
D
0
(
G
re
e
n
)
P
W
R
(
R
e
d
)
G
N
D
(
B
la
c
k
)
P
re
-a
le
rt
(Y
e
llo
w
)
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.
Shield
ACU Ground
Lug
D
1
(
W
h
ite
)
D
0
(
G
re
e
n
)
Red
G
N
D
(
B
la
c
k
)
L
E
D
(
O
ra
n
g
e
)
Black
VDC + -
P
W
R
(
R
e
d
)
Reader terminal on control board
LED D1
WHT
D0
GRN
PWR
RED
GND
BLK
C1
(BEEP)
P
re
-a
le
rt
(Y
e
llo
w
)
to separate DC
power supply
Note - If Pre-alert is connected,
the reader cannot read any
HID 125 kHz-compatible card
during the pre-alert beep.
KI-00207E-10-13
Rev. A
– 260 mA
Rev. B
– 75 mA
Rev. C
– 121 mA