USER MANUAL
SPEED DOME CAMERA SD-A27IR
Page:
6
Page:
6
DSE srl - Italy - WWW.DSE.EU
INSTALLATION OF CAMERA
The
SD-A series cameras are
packed
carefully to prevent damage during transport. First, you must check the received material.
Material check
The speed dome camera that you have purchased is protected by elements
Packaging ranging
carefully removed before using it.
Cable connections
Each camera Speed Dome SD-A series has a cable fitted with the following connections:
VERSION 24V AC
2 cables
Power RED BLACK
2 cables
Power RED BLACK
video Output
BNC female
video Output
BNC female
2 Cables
BUS
RS485
BLUE BROWN
2 Cables
BUS
RS485
BLUE BROWN
2 Cables
BUS
RS485
BLUE BROWN
2 Cables
BUS
RS485
BLUE BROWN
VERSION 12V DC
1 cable
feeding with 5.5 mm plug.
1 cable
feeding with 5.5 mm plug.
video Output
BNC female
video Output
BNC female
2 Cables
BUS
RS485
BLUE BROWN
2 Cables
BUS
RS485
BLUE BROWN
2 Cables
BUS
RS485
BLUE BROWN
2 Cables
BUS
RS485
BLUE BROWN
To structure a system of Speed Dome cameras must prepare three types of wiring:
Supply.
The SD-A27IR cameras come in two versions: with 12VDC power supply with
Supply.
The SD-A27IR cameras come in two versions: with 12VDC power supply with
supply
24VAC
(the latter
with
power supply included).
The power supply is 24VAC
advisable if the wiring is long in order to avoid voltage drops in view of the absorption of the
camera.
The 24VAC version is supplied complete with 220VAC / 24VAC.
In the case of 12VDC power supply is possible to feed the
camera
locally with an adapter
220VAC / 12VDC by at least 3A (not supplied) or
prepare a 12VDC network with cables with a suitable section so as to avoid excessive
voltage drop.
Video connection.
It is carried out as for any traditional CCTV camera, being the
Video connection.
It is carried out as for any traditional CCTV camera, being the
video signal produced by a composite video camera. You typically use RG59 coaxial cable
for distances up to 2-300 meters. For longer distances it can carry the video signal on twisted
pairs using special converters (RE-BNCRJ1 / 2).
Telemetry.
It is of the serial connection that leads the movement commands to the
Telemetry.
It is of the serial connection that leads the movement commands to the
camera. The SD series cameras use an RS485 serial line (RS485 BUS) which is formed with
a pair of twisted wires. E 'essential that the two cables are wound between them and
non-parallel. In principle the RS485 serial line can extend up to 1200 meters in length and
along it are connected in cascade devices. The section of the cables closely depends on the
length of the connection: for medium distances is sufficient a section of 0.5 mm, while if it is
necessary to reach considerable distances (max. 1200 m.) Should be used upper sections of
1 mm or even 2.5 mm. In carrying out the wiring is recommended to use shielded cable. The
cameras and the console must be connected in cascade ie entering and exiting from the
clamps 2 and RS485A RS485B. IS'
important not
invert the two cables (AB) during the connection of the equipment.
The order in which the devices are connected to
BUS has not
relevance.
Every
equipment will be identified by its own unique address,
adjustable via DIP switches, which
will properly address the instructions. E 'can be connected to the same BUS up to 256
cameras.
The console does not require any
addressing, while for the cameras is necessary to set a different address for each camera,
as described below.
The cables to be used for the RS485 line are the BROWN (RS485A) and BLUE (RS485B)
Setting address and baud rate of the cameras
Each camera must have an address different from the other in order to be identified along
the BUS. It must also be able to communicate with other devices using the same protocol
and the same transmission rate (or baud rate). These three parameters: Address, Protocol
and Baud rate is set via DIP switches on board room and critical to the operation.