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CONNECTION GUIDE FOR MASTER SED 900
Access
control
data
clock
reader 1
led
beep
com
------
data
clock
reader 2
led
beep
com
------
NOTE: YOU MUST ALWAYS WIRE ALL CABLES SHOWN FROM THE
SED 900 TO THE ACCESS CONTROL SYSTEM. IF YOU DON'T
THE WIRLESS UNIT WILL NOT WORK CORRECTLY .
CONNECTIONS
AC = 16v ac plug Pac supplied
12v battery in ( back up battery ) not supplied
485 expander + expander boards
I/O for input output board
Outputs channel A to access control system
•Data to access control DATA / D1 GREEN
•Clock to access control CLOCK D0 WHITE
•Led to access control LED BROWN
•Beep or access control BUZZ or BEEP YELLOW
•Com to access control GND or COMMON BLACK
Outputs channel B to access control system
•Data to access control DATA / D1 GREEN
•Clock to access control CLOCK D0 WHITE
•Led to access control LED BROWN
•Beep or access control BUZZ or BEEP YELLOW
•Com to access control GND or COMMON BLACK
Sed 900 master guide
SED 900 master
LEDS
power
charging
signal
Output XXXX
TX Data
data
clock
Rx Data
led
out
A-Request
beep
com
A-Reply
------
B-Request
Output XXXX
B-Reply
data
clock
In
led
channel
beep
select
com
------
POWER = Power ok to board
CHARGING = Battery charging
SIGNAL = ON , Transmitting out
Tx Data= radio sending data out
Rx Data= radio receiving data in
A request = reader on A sending data
A Reply = reader on A receiving data
B request = reader on B sending data
B Reply = reader on B receiving data
MASTER
12v
Battery in
16 VAC
LED INDICATORS
2
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