GE Security Legend IP, Installation Manual

Page: 13 / 82

Chapter 1
Introduction
5
Typical advanced analog system
A typical advanced analog system is shown in Figure 2 . In this configuration, control commands pass through
digital recorders and alarm equipment and video is switched to various monitors. For additional details, refer to
the data sheet, user manual, or application guide.
Figure 2. Typical advanced analog system
1 8
78
9
10
6
5
3
2
14
POWER 12 VDC
BIAS
SWITCH
78
9
10
6
5
3
2
14
RS485
A
B
A
B
+ AUDIO
KEYPAD
RS485
RS485
A
B
RS422 IN
RS422 OUT
SPEAKER SHIELD
SPEAKER
REMOVABLE TERMINAL STRIP
EARTH GROUND
78
9
10
6
5
3
2
14
POWER 12 VDC
BIAS
SWITCH
78
9
10
6
5
3
2
14
RS485
A
B
A
B
+ AUDIO
KEYPAD
RS485
RS485
A
B
RS422 IN
RS422 OUT
SPEAKER SHIELD
SPEAKER
REMOVABLE TERMINAL STRIP
EARTH GROUND
N/O
N/C
COM
Digital recorder
Video
loop-
through
Matrix switcher
Dome
Local alarm
inputs
(dry contacts)
Local relay
outputs
Mon 1 Mon 2 Mon 3 Mon 4
Data distributor
Alarm chassis
Controller
keypad
Controller
keypad
Alarm input
module
Alarm inputs
Alarms/relays
Video
RS-422 data
RS-485 data