4
Chapter 2 Speed Dome Camera Control Keypad
2.1 Overview
The keyboard is a tiny, easy to use, clear and small
direct-control keyboard. It can control multiple cameras
with full functionality through RS485 BUS. If you use
control systems from other company, due to that
different platforms have different specific operation
method. Generally, control system manufacturer's
operation manual shall prevail. In some cases there will
be some special requirements and method of operation,
check with the dealer to obtain necessary information
of the control system platform.
Features
■
Cooperating with Video Switcher Unit to control 16
cameras directly
■
Built-in
LCD
■
Camera No. and speed parameter visible
■
Directly control camera's action
Up, down, left, right
Zoom in/out
■
Directly switch the image among multiple cameras
■
Communication protocol: RS-485
■
Power supply: DC 9V to 12 V
■
Power consumption: 1 W
■
Dimensions:
w×d×h(mm)
：
263×175×60
■
Weight:
0.6
kg
2.2 Connection between keyboard and
system
Fig 2.1 Keyboard cable
1&2——DC power input DC 9 V-12 V (V+)
3&4——Control cable A
5&6——Control cable B
7&8——Power ground
①
External power supply should be connected to
12VDC input terminal of RS485 lightning
protection adapter (any one of K4 or K5, but can
not connect both at the same time);
②
Connect one end of RJ45 cable (supplied
accessories) to RJ45 socket of the camera and
another end of RJ45 cable to K1 socket of RS485
lightning protection adapter;
③
Connect A, B terminal of RS485 BUS to A, B
terminal of system BUS respectively. Up to 32
decoders or other devices (high speed camera, or
constant speed camera) can be connected to BUS.
④
Control BUS should use shielded twisted-pair
cable with shield ground. Thickness of the cable is
related to required BUS length. For long distance,
thick cable (0.75-1mm
2
) should be used; for short
distance, thin cable with diameter
≥
0.2 mm
2
can be
used.
