Speco Technologies KBD-927 - Manual (Page 8)

8
Chapter 2
INSTALLATION
2.1 Connection Diagram
2.1.1 Basic Installation Diagram
3~4
5~8
1~2
1~4
ALARM OUTPUT
UP TO 4
ALARM OUTPUT ALARM OUTPUT
ALARM INPUT
HALF DUPLEX MODE : TX+,TX-
RS-485
ALARM INPUT
UP TO 8
ALARM INPUT
LIGHT
SIREN
SENSOR
DOM
E
1 +
DO
M
E
1 -
AWG # 24
BNC
BNC
MONITOR
AC 24V
POWER
RX
-(
TX
-)
RX
+ (TX
+ )
(R
X -)
(R
X+
)
(RS-422)
RS
-4
85
GN
D
(R
X+
)
AC
-
AC
+
FG
N
D
(R
X
-)
AC
-
R
X
+(T
X
+)
RX
-( TX
-)
AC
+
NC2
NO2
NC1
NO1
COM 2
COM 1
AL4
GND
AL3
AL2
GND
AL1
NO4
NC4
COM4
NO3
NC3
COM3
GND
AL8
AL7
GND
AL6
AL5
AC 24V
POWER
RS-422
SIMPLEX MODE : TX+,TX-
DUPLEX MODE : TX+,TX-,RX+,RX-
Figure 2 – Basic installation diagram