System Requirements; Operational Requirements - GE Legend Installation Manual

System requirements

Operational requirements

Legend contains a built-in receiver that decodes
commands originating from a compatible controller
keypad. A minimum of one keypad is required for
operation. See Figure 1. From the keypad, an
operator can pan, tilt, and zoom the camera, find
presets, and start macros and ShadowTours. A
typical advanced system is shown in Figure 2. For
additional details, refer to the data sheet, user
manual, or application guide.
Figure 2. Typical advanced system
Mon 1 Mon 2
EARTH GROUND
A
RS485
B
A
B RS422 IN
A RS422 OUT
B
SPEAKER SHIELD
+
SPEAKER
Controller
keypad
Digital recorder
Video
loop-
through
Matrix switcher
Mon 3 Mon 4
Data distributor
EARTH GROUND
A
RS485
B
A
B RS422 IN
A RS422 OUT
B
SPEAKER SHIELD
+
SPEAKER
Alarm input
Controller
keypad
Figure 1. Basic system
EARTH GROUND
A RS485
B
A
B RS422 IN
A
RS422 OUT
B
SPEAKER SHIELD
+
SPEAKER
Dome
Alarm chassis
module
Alarm inputs
N/O
COM
N/C
Local relay
outputs
Local alarm
inputs
(dry contacts)
1 8
Alarms/relays
Video
RS-422 data
RS-485 data
3