RS 408-735 User manual

Introduction
The monochrome CCTV mini system is designed to enable
quick and simple installation of a surveillance or monitoring
system. The unit is supplied complete with camera, mounting
bracket and connection cables for single camera operation.
The camera has a built in microphone for audio monitoring.
The system has a four way camera switcher built in, hence the
system may be extended by purchasing additional cameras.
Cable length may be extended up to 90m. An intercom unit
enables 2-way speech, ideal when used in conjunction with an
access control unit for visual and verbal identification of wanted
or unwanted visitors. A VCR may be connected using the VCR
lead to record events. The alarm input/output can be used to
trigger the VCR into record mode.
System components
RS stock no. Contents
408-735 CCTV monitor with built-in 4-way switcher,
4.3mm F1.8 camera, 18m of cable,
camera mounting bracket.
408-757 4.3mm F1.8 camera, 18m of cable,
camera mounting bracket.
408-763 18m extension cable.
408-779 90m extension cable.
408-785 Extension cable connector
408-791 VCR lead.
408-808 Intercom unit 6m of cable.
Explanation of graphical symbols
This symbol is intended to alert the user to the
presence of uninsulated Ôdangerous voltageÕ within
the productÕs enclosure that may be of sufficient
magnitude to constitute a risk of electric shock to
persons.
This symbol is intended to alert the user to the
presence of important operating and maintenance
(servicing) instructions in the literature accompanying
the appliance.
System installation
General precautions
a. The system should not be installed in an area that has
excessive humidity, heat, dust or moisture.
b. Avoid locations where continuous vibrations or mechanical
shocks are present i.e. mounting on moving machinery.
c. The monitor should not be installed near transformers or
motors as these may interfere with the video picture. If the
picture shows dark bars, rolling lines or rolling/pulling
picture this is an indication that interference is occurring.
d. It is recommended that the camera cable be secured to the
mounting bracket using a cable tie such as RS stock no.
178-462 to minimise mechanical stress on the connection.
System connection
Once the position of the monitor and cameras have been
determined and the cables run between the latter the system
can be plugged together as shown in figure 1 and 2.
The detail of the VCR and PIR/switch contact connections are
covered in Ôsystem accessoriesÕ later in this manual.
CCTV Mini System
Stock No. 408-735, 408-757, 408-763, 408-779,
408-785, 408-791 and 408-808.
!
CA1
CA2
CA3
CA4
VCR
Figure 1. System connections
Figure 2. Camera connections
A
B
C
D
E
F
A. Intercom
B. Cameras
C. PIR or magnetic door
contacts
D. VCR
E. Alarm output
F. Monitor
AB
A. Intercom/PIR/door contact
B. Monitor

System controls
Once the system is connected up the power may be switched
on and controls adjusted as described below.
1. Talk press ON and OFF
While pressing this switch, outgoing audio is transmitted
and when released, the intercom will be incoming audio
only.
2. Manual camera selector (1-4)
Select camera 1 to 4 manually.
3. Automatic camera selector
Press this button ON for automatic channel switching
(default when power on) with alarm reset.
4. VCR select switch
Press this button ON to display time or characters
superimposed by VCR (on-screen display) or to playback
or record video and audio.
5. Skip switch
These are for channel skip function. If required, set skip
switch upward for the pertinent channels skip.
6. Volume control
Use this control to obtain sound, turn clockwise direction to
increase and anti-clockwise to decrease the sound.
7. Brightness control
Brightness can be gained by turning this knob clockwise.
Adjust the brightness adequately, depending on the
contrast.
8. Contrast control
Contrast between black and white can be deepened by
turning this knob clockwise.
9. Power switch
This switch turns the power on or off. As it is pressed
once, the power will be turned ON, and as it is pressed
once again, the power will be turned OFF.
10. CA1-CA4 (connector)
Connect to video cameras.
11. VCR (connector)
Connect to VCR (video in, video out, audio in, audio out).
12. Switch time control
This sets the channel switching time when in automatic
mode. Turning clockwise increases the time.
13. Alarm time control
This sets the alarm channel hold time. Turning clockwise
to increase the time.
14. Remote control
This is not available with the RS system.
15. Alarm out (connector)
Connect to ÔAlarm inÕ of VCR. This terminal outputs the
alarm signal, i.e. normally open switch contacts.
16. Horizontal hold control
Turn gently to correct the picture if any horizontal bars run
in the picture.
17. Vertical hold control
Turn gently to stop the picture running up or down.
18. V-Height control
Turn this V-Height gently to adjust the vertical size of the
picture.
19. V-Lin control
Turn this V-Lin gently to adjust the interval between trace
lines.
System accessories
Intercom unit (RS stock no. 408-808)
This unit is designed to be wall mounted, internally or sheltered
externally (i.e. in a porch where rain can not enter the unit). It
is supplied complete with 6m of connection cable for
connection to a camera (see figure 2). Pressing the button on
the front of the unit causes an alarm condition at the monitor.
The monitor then automatically switches to the appropriate
camera, gives an audio warning and generates an alarm output
for the VCR. The duration of the condition is set by the alarm
time control (see system controls).
VCR connection (RS stock no. 408-791)
The VCR connection lead allows both video and audio signals
to be recorded. The moulded plugs on the lead clearly indicate
the correct input/output connections. BNC adaptors such as
RS stock no. 406-515 may be required for connection to your
VCR, please check the connections on your video. The alarm
output on the back of the monitor is a normally open VOLT free
contact. This is activated by an alarm condition and may be
able to control the recording mode of your VCR. Please check
your VCR manual for the necessary connections and mode of
operation.
1 2 3 4 5 6 7 8 9
10
11
12
13
14
1418171615
Figure 3. Monitor controls
A
A. Microphone

Other alarm devices
It is possible to use other devices such as a passive infra-red
detector (PIR) or switch contact to cause an alarm condition.
The necessary connections for this are given in figure 4.
Note: The alarm is given by grounding Pin 1, hence a
normally open contact is needed.
A lead such as RS stock no. 446-664 could be adapted to
enable this connection as it has the necessary 6-way FCC 68
socket attached.
Technical specification
Monitor
Supply voltage 230V
Power consumption 50W max.
Resolution 800TVL
Weight 6.5Kg.
Camera
Image sensor 1/3ÓCCD
Resolution 380TVL
Minimum illumination 1Lux (F1.8)
Lens 4.3mm, F1.8
Iris E.I.
Weight 300grams (approx)
General
Operating temperature 0-40¡C
1 2 3 4 5 6
Figure 4. Other alarm connections
RS Components Issued March 1995 9957
A
B
C
DE
F
A. Intercom socket on camera
B. Ov
C. N/O contact
D. 12Vd.c.
E. 5V logic alarm (ground to activate)
F. FCC 68 socket