Specifications

WSE • 3/21/97 16720 — A Alto 818 Access Control System
PART IV APPENDIX
.1 READ RANGE MATRIX
DigiReader® Digital Proximity Reader
Prox Card
DR4204 DR4205 DR4208 DR4226 DR4238
QuadraKey up to 2"
(5.08 cm)
up to 4"
(10.16 cm)
up to 7"
(17.78 cm)
up to 13"
(33.02 cm)
up to 22"
(55.88 cm)
NexKey up to 2"
(5.08 cm)
up to 4"
(10.16 cm)
up to 7"
(17.78 cm)
up to 13"
(33.02 cm)
up to 22"
(55.88 cm)
DuraKey up to 3"
(7.62 cm)
up to 6"
(15.24 cm)
up to 8"
(20.32 cm)
up to 22"
(55.88 cm)
up to 36"
(91.44 cm)
Maximum read ranges may vary depending on physical environment of installation
.2 MOUNTING DIAGRAMS
A. Alto 818SX/Alto 818SC:
CHAS GND
16VAC
GND/CT
16VAC
25.2VAC
25.2VAC
ANTI-TAMPER
POWER FAIL
COMMON 1,2
LOCK 1
LOCK 2
COMMON 3,4
LOCK 3
LOCK 4
COMMON 5,6
LOCK 5
LOCK 6
COMMON 7,8
LOCK 7
LOCK 8
TX -
TX +
RX -
RX +
CHAS GND
RLSD
GND
DCER
CTS
RTS RD
TD
DTER
DTER
TD
RD
RTS
CTS
DCER
GND
RLSD
CHAS GND
MP -
MP +
SHIELD RETURN
PWR
GND
B
A
SENSOR 1
SENSOR 2
SENSOR 3
SENSOR 4
SENSOR 5
SENSOR 6
SENSOR 7
SENSOR 8
POWER RELAYS 20mA
HOST
TERMINAL
ANNUNCIATOR RS485
MADE IN U.S.A.
SEE INSIDE COVER FOR WIRING INSTRUCTIONS
VITAL
FUNCTION
1
56
23
7
4
8
RX RX
TX TX
RELAYS HOST TERMINAL
7.40
17.20
18.0
10.4
ALTO
818SX
Model No. 818SX
2.2