Sed 900 master guide 2
Battery in
MASTER
power
charging
signal
TX Data
Rx Data
A-Request
A-Reply
B-Request
B-Reply
Output XXXX
data
clock
led
beep
com
------
Output XXXX
data
clock
led
beep
com
------
12v
Access
control
16 VAC
channel
select
LEDS
SED 900 master
data
clock
led
beep
com
------
reader 1
reader 2
data
clock
led
beep
com
------
In
out
CONNECTION GUIDE FOR MASTER SED 900
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
CONNECTIONS LED INDICATORS
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
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 .
