Section 10 – Access Control
10-3
Part Purpose
TXD and RXD LEDs Indicates the ACIU communication status as follows:
•
TXD LED - flashing when the ACIU is transmitting.
•
RXD LED - flashing when the ACIU is receiving.
Tamper Space is provided for adding a tamper switch, which must be ordered
separately as a 248116 Tamper Kit.
TERMINAL STRIP
TB3 FOR POWERING STRIKE
OR SOLENOID (NOTE 3)
DS2
RXD
DS1
TXD
RS-485
RS-485 BUS LEDs
TXD (YEL) RXD (RED)
RS-485 BUS
ADDRESS JUMPERS
(SEE DETAIL "A")
JUMPER E10
(SEE NOTE 4)
E2
E3
E4
E5
E6
E7
E8
E9
TERMINAL STRIP TB1
FOR RS-485 BUS
CONNECTIONS
JUMPER CONDITIONING SHOWN FOR COMMUNICATION GROUP 4
IN COMBINATION WITH UNIT NUMBERS 0 THROUGH 7.
E2
E3
E4
E5
E6
E7
E8
E9
0
1
UNIT NO.
UNIT NO.
COMMUNICATION
GROUP NO. 4
JUMPER IN
JUMPER OUT
NOTES:
1. RS-485 BUS LEDs:
(A) TXD (YEL) FLASHES WHEN ACIU IS TRANSMITTING
(B) RXD (RED) FLASHES WHEN ACIU IS RECEIVING.
2. A 248116 TAMPER KIT (ORDERED SEPARATELY) MUST BE INSTALLED
FOR UL INSTALLATIONS. CONSISTS OF TAMPER SWITCH PLUS
MOUNTING HARDWARE.
3. LEAVE JUMPER E11 IN IF POWERING A 12V STRIKE (CARD
READER OR MARLOK KEYREADER). REMOVE JUMPER E11 IF POWERING
A 5V MARLOCK KEYLOCK OR OTHER 5V DEVICE. CONNECT STANDARD
3K EOL RESISTOR ACROSS TB3-1 AND TB3-2 IF NOT USING KEYLOCK OR STRIKE.
4. REMOVE JUMPER E10 IF USING ON-BOARD 12VDC 0.8AH BATTERY.
2 3 4 5 6 7
FOR TAMPER
(IF USED)
SEE NOTE 2
GND
+ 12V
COM
COM +
(BLK) 1
(YEL) 3
(RED) 2
(BLU) 4
E1
JUMPER E11
(SEE NOTE 3)
CONNECTION FOR
ON BOARD BATTERY
IF USED)
TB3
BATTERY
1
2 +
1
2 +
3 "0"
4 "1"
5 "A"
6 "B"
TERMINAL STRIP
TB2 FOR READER
CONNECTIONS
JUMPER E1 (REMOVE JUMPER
TO DISCONNECT RS-485
TERMINATING RESISTOR)
TB2
BATTERY AREA
12V, O.8AH
TB1
Figure 10-1: Access Control Interface Unit (ACIU)
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