Baxall DVS14 User manual

DVS Series Desktop Video Switchers
Installation and Operating Manual
Please read these instructions before installing your equipment

DVS Series Installation and Operating Manual
2
IMPORTA T
The first few pages of these instructions contain important information on safety and product
conformity. Please read, and ensure that you understand this information before continuing.

Installation and Operating Manual DVS Series
3
CO TE TS
Product Safety ........................................................................................................ 4
Electromagnetic Compatibility (EMC) .................................................................. 4
Manufacturers Declaration of Conformance ...................................................... 4
Unpacking ............................................................................................................... 4
Overview .................................................................................................................. 5
Rear Panel Connections .......................................................................................... 7
Connecting the Switcher .......................................................................................... 8
Alarm I/O Connector ................................................................................................
DVS14 and DVS18 Operation ............................................................................... 10
DVS24A and DVS28A Operation ............................................................................ 11
The On-Screen Menu System ............................................................................... 13
Setup Menu ............................................................................................................ 14
Titles Sub-Menu ..................................................................................................... 15
Dwell Sub-Menu ..................................................................................................... 16
Alarms Sub-Menu .................................................................................................. 17
Mounting Instructions ............................................................................................. 1
Specifications ......................................................................................................... 20

DVS Series Installation and Operating Manual
4
PRODUCT SAFETY
 Please follow these instructions as you install the equipment and keep them for
future use. If you have any problems, contact Baxall Limited.
 Installation is only to be carried out by competent, qualified and experienced
personnel. ire in accordance with the country of installations National iring
regulations. Failure to do so can result in death or injury by electric shock.
 The equipment supplied with this manual is designed for use in a general purpose
CCTV installation and has no other function.
 Before undertaking any installation or maintenance, the mains supply must be
disconnected.
 This product should only be used with the supplied +12V DC power supply (Baxall
Reference PSU11 or PSU14).
 Do not exceed the voltage and temperature limits given in the specifications.
 Only use your DVS Series Desktop Video Switcher in a clean, dry, dust-free
environment.
 Before cleaning this equipment, isolate the unit. Use only a dry, lint-free cloth. Do
not use cleaning fluids or solvents.
ELECTROMAG ETIC COMPATIBILITY (EMC)
CAUTION
 This product is intended for use in general purpose CCTV applications in a
residential, commercial or light industrial EMC environment. Refer to Baxall
Limited before using the product is medical and/or intrinsically safe applications
or in an industrial EMC environment.
 This product must be installed in accordance with good installation practice for
EMC to enable the product to function as intended and to prevent EMC problems.
MA UFACTURERS DECLARATIO OF CO FORMA CE
A Declaration of Conformity in accordance with the following EU standards has been
made and is on file at Baxall Limited, Stoc port, SK6 2S, England.
The manufacturer declares that the product supplied with this document is compliant with
the provisions of the EMC Directive 89/336 EEC, the Low Voltage Directive LVD 73/23
EEC, the CE Mar ing Directive 93/68 EEC and all associated amendments.
U PACKI G
Keep your pac aging for use if the product is to be stored for an extended period or needs
to be returned for any reason. The pac aging should contain:
 A DVS Series Des top Video Switcher (DVS14, DVS18, DVS24A, or DVS28A)
 A mains-soc et mounting +12V DC power supply (class 2)
 15-way alarm connector plug and cover (with DVS24A and DVS28A only)
 These instructions
Chec the product code on the serial number label. If you have an incorrect item or it is
damaged then inform the suppliers and carriers immediately. If this is the case then do not
attempt to use the equipment.

Installation and Operating Manual DVS Series
5
OVERVIEW
This manual describes the installation and operation of the following DVS Series Des top
Video Switchers:
The products in the DVS Series have a number of common features:
 Easy setup using on-screen menus.
 Simple controls and indicators.
 Manual selection of cameras.
 Automatic camera sequencing feature, with dwell time control for each camera.
 User-definable camera titles.
Aside from these common features, DVS Series switchers fall into two groupsthose with
alarm functionality, and those without.
DVS14 and DVS18
The DVS14 can be connected to four camera inputs whilst the DVS18 can be connected to
eight. Both products are used to switch the images from these inputs onto one output
monitor. Neither the DVS14 nor the DVS18 has alarm functionality.
Video Inputs
Video Output
DVS14
AUTO
OK MENU 1234
Figure 1 - Typical Desktop Video Switcher Arrangement (using DVS14)
Product
DVS14
DVS18
DVS24A
DVS28A
Inputs
4
8
4
8
Outputs
1
1
2
2
Alarms
No
No
Yes
Yes

DVS Series Installation and Operating Manual
6
OVERVIEW
DVS24A and DVS28A
The DVS24A can be connected to four camera inputs whilst the DVS28A can be connected
to eight. They can also be connected to a second monitor. Li e the main monitor, the
second monitor can be used to show images from each of the camera inputs, and can be
set to run automatic camera sequences. In a sequence on the second monitor, a global
dwell time applies to all cameras and this can be adjusted if required. Sequences can also
be run simultaneously on both monitors.
Both the DVS24A and DVS28A units have alarm functionality. The alarm inputs are designed
so that when an alarm is triggered, the main monitor displays the image from the
corresponding camera input, while the second monitor will continue as before, displaying
images from an automatic sequence or from a manually selected camera. In this way, the
operator can retain control over all camera inputs while the images from the camera input
under alarm are examined.
Video Inputs
Video Outputs
DVS24A
Alarm Inputs / Output
MAIN SPOT
AUTO
SPOT
OK MENU 1234
Figure 2 - Typical Desktop Video Switcher Arrangement (using DVS24A)

Installation and Operating Manual DVS Series
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REAR PA EL CO ECTIO S
Video
Inputs Video Output
Power Connector
Power supply cab
le
strain relief poin
t
DVS14
Video
Inputs Video Output
Power Connector
Power supply cab
le
strain relief poin
t
DVS18
Video
Inputs Video Outputs
Alarm I/O
Connector
Power Connector
Power supply cab
le
strain relief poin
t
DVS24A
Video
Inputs Video Outputs
Alarm I/O
Connector
Power Connector
Power supply cab
le
strain relief poin
t
DVS28A
Figure 3 - Rear Panel Connections on the DVS Series Desktop Video Switchers

DVS Series Installation and Operating Manual
8
CO ECTI G THE SWITCHER
To connect a DVS Series Des top Video Switcher, follow the instructions below, using the
figures on page 7 as a guide:
1. Ensure that all the video connections from the cameras and monitors are made using
coaxial cable terminated by a 75W BNC connector.
Note: The switcher is not intended for loop through. Video inputs requiring loop through
should be unterminated at the peripheral device, as 75ohm termination is provided by
the switcher.
2. Connect a cable from the main monitor to the BNC soc et mar ed MAIN. If the switcher
is a DVS24A or DVS28A and a second monitor is being used, connect this monitor to
the lower BNC soc et, which is mar ed SPOT.
3. Connect cables from the cameras to the video input BNC soc ets. The BNC soc ets
are numbered:
 1-4 on the DVS14 and DVS24A.
 1-8 on the DVS18 and DVS28A.
4. If you are using a switcher with alarm inputs (DVS24A or DVS28A) connect the Alarms
I/O Connector.
5. Connect the jac -plug from the 12V DC power supply into the jac -soc et mar ed 12V
DC. Use the power supply cable strain relief point to prevent the power cable from
being accidentally pulled out.
Figure 4 - Power supply cable strain relief point
6. Plug the 12V DC power supply into a nearby mains power outlet. This outlet should be
easily accessible so that the switcher can be unplugged if necessary.
7. Switch on the cameras, monitors and the DVS Series Des top Video Switcher at the
mains power outlet.
When the power is switched on, the switcher will display the images from a single
camera or it may begin to switch cameras sequentially, depending on the operation
selected when it was last switched off. If the switcher cannot find any camera inputs, it
will scan through the camera selection LEDs, displaying a NO VIDEO message on the
monitor.
Note: Whenever the power is lost from a switcher, it stores the last nown operation.
When it is restarted, the switcher will resume this last nown operation (e.g., video from the
last selected camera or a sequence).

Installation and Operating Manual DVS Series
ALARM I/O CO ECTOR
The Alarm I/O Connector is a 15 way D-type connector located on the rear panel of the
DVS24A and DVS28A. It allows the connection of both alarm inputs and alarm outputs to
the switcher.
Alarm Inputs
Each alarm input can be connected to the normally-open contact of devices such as pressure
pads, passive infrared detectors, or smo e detectors etc. The alarm will be triggered when
the external contact closes. Wire the devices to the Alarms I/O Connector accordingly.
1234
5678
GROUND
GROUND
DVS28A DVS24A
Pin 1
1
2
3
4
GROUND
Pin 1
Figure 5 - Alarm Input Connections
Alarm Outputs
An internal relay is provided so that the DVS can be connected to other equipment.
The behaviour of this relay can be programmed using the menu system, in order to suit the
alarm output connected. It can be configured so that when an alarm input is triggered, the
relay (and hence the alarm output) operates continuously or operates for one second from
the time the alarm is triggered. For more details on this configuration, see page 17.
The alarm relay operates in a fail-safe mode. When power is removed from the unit, the
relay reverts to its alarm condition.
INTERNAL
RELAY
Normally Open (N/O)
Normally Closed (N/C)
Commo
n
Pin 1
N/O
N/C
COM
ALARM
CONDITION
N
ON-ALARM
CONDITION
N/O
N/C
COM
Figure 6 - Alarm Output Connection and Operation

DVS Series Installation and Operating Manual
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DVS14 A D DVS18 OPERATIO
On the front panel of the DVS14 and DVS18 Des top Video Switchers is a numbered
button corresponding to each camera input, and a button labelled Auto.
AUTO
OK MENU
1234
Input Selection (1-4) /
Menu Control Button
s
Auto
B
utton
Input Selection (1-4
) /
Menu Control Button
s
Auto
B
utton
Input Selection
(5-8) Buttons
AUTO
OK MENU
1234
5678
Figure 7 - Front Panel Controls on DVS14 (top) and DVS18 (bottom)
Using these buttons, the units can be operated in one of two modesManual or Auto.
Manual Mode
To operate the unit in Manual mode, press the numbered buttons to view the corresponding
camera on the monitor. The LEDs above the buttons indicate which camera is currently
selected.
Pressing the button for a video source that doesnt have a camera connected to it will
display a NO VIDEO message until another camera is selected.
Auto Mode
To operate the unit in Auto mode, press the Auto button. The monitor will begin to show
images from each active camera in sequence. Any input that had no video signal present
when the unit was powered up will be omitted from the sequence. To add an input to the
sequence, connect it to a video signal and then manually select that input using the relevant
numbered button. When the sequence is restarted, the new input will be included.
When operating in Auto mode, the unit displays each camera input for a specific period of
time before displaying the image from the next camera and so on. This period of time is
nown as the dwell time and it can be adjusted for each camera individually using the on-
screen menu system (see page 16).
To exit Auto mode, press any of the numbered input selection buttons.

Installation and Operating Manual DVS Series
11
DVS24A A D DVS28A OPERATIO
On the front panel of the DVS24A and DVS28A Des top Video Switchers is a numbered
button corresponding to each camera input, a button labelled Auto and a button labelled
Spot.
AUTO
SPOT
OK MENU
1234
Input Selection (1-4
) /
Menu Control Button
s
Auto
B
utton
Spot
B
utton
AUTO
SPOT
OK MENU
1234
5678
Input Selection (1-4
) /
Menu Control Button
s
Auto
B
utton
Spot
B
utton Input Selection
(5-8) Buttons
Figure 8 - Front Panel Controls on DVS24A (top) and DVS28A (bottom)
Using these buttons, the units may be operated in one of two modesManual or Auto.
Manual Mode
To operate the unit in Manual mode, press the numbered buttons to view the corresponding
camera on the main monitor. The LEDs above the buttons indicate which camera is currently
selected. Pressing the button for a video source that doesnt have a camera connected to
it will display a NO VIDEO message until another camera is selected. The unit can also be
used to manually select and display cameras on the spot monitor. To do this, hold down the
button labelled Spot and press the desired input selection button.
Auto Mode
To operate the unit in Auto mode, press the Auto button. The main monitor will begin to
show images from each active camera in sequence. Any input that had no video signal
present when the unit was powered up will be omitted from the sequence. To add an input
to the sequence, connect it to a video signal and then manually select that input using the
relevant numbered button. When the sequence is restarted, the new input will be included.
A sequence may also be displayed on the spot monitor. To do this, hold down the Spot
button and press the Auto button. It should be noted that if the spot monitor switches to an
input from which the video signal has been lost, a NO VIDEO message will be appear
briefly on the main monitor. This is because the spot monitor cannot display text.

DVS Series Installation and Operating Manual
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DVS24A A D DVS28A OPERATIO
When operating in Auto mode, the unit displays each camera input for a specific period of
time before displaying the image from the next camera and so on. This period of time is
nown as the dwell time and when the sequence is being shown on the Main monitor, it can
be adjusted for each camera individually using the on-screen menu system. When the
sequence is being displayed on the Spot monitor, the dwell time is the same for each
camera. It may however, be adjusted globally using the menu system. For more details on
dwell time adjustments, see page 16.
To exit Auto mode, press any of the input selection buttons.
Note
The DVS24A and DVS28A are fitted with alarm inputs. The operation of the switchers
when in alarm condition depends largely on the settings in the Alarms sub-menu (see
page 17), but there are general principles that are applicable whatever the settings.
 When an alarm is triggered, the LED and the on-screen camera title of the alarmed
input will flash.
 When an alarm is triggered, the switcher will automatically display images from the
corresponding camera on the main monitor. This mode and the pictures will continue
until the alarm is returned to cleared status (see page 17). However, images from
another camera can be displayed by pressing and holding down the required input
selection button. When the button is released, pictures from the alarmed camera are
re-displayed by the monitor.

Installation and Operating Manual DVS Series
13
THE O -SCREE ME U SYSTEM
The DVS Series Des top Video Switchers utilise an on-screen menu system to facilitate
setup and adjustment.
To enter the menu system, hold down the Number 1 and Auto buttons together until a
menu appears on the main monitor. Once the menu system has been accessed, the user
can navigate using the switcher eyboard:
A typical menu screen is shown below. The currently selected item is highlighted by a box
( nown as the cursor) which can be moved up and down using the and buttons. The
and buttons are then used to change the selected parameter for that menu item. A
menu item with no parameters indicates that a sub-menu exists. To reveal the sub-menu,
highlight the menu item and press the OK button.
Highlighting EXIT and pressing the OK button will return to the previous menu level.
No parameters,
indicates submenu
KEY LOCK OFF
TITLES
DWELL
DEFAULTS
ALARMS
EXIT
Ver x.x
SETUP
Currently selected
menu item Currently selected
parameter
Change selected paramet
er
M
ove up or down
Version Number
Figure 9 - A Typical Menu Screen
Note
If no buttons are pressed for a period of 60 seconds, the switcher will exit the menu system.
Button
Camera Input 1
Camera Input 2
Camera Input 3
Camera Input 4
Auto
Use in Menu System
OK

DVS Series Installation and Operating Manual
14
SETUP ME U
The Setup menu is displayed when the menu system is entered:
(For the DVS24A and DVS28A)
KEY LOCK OFF
TITLES
DWELL
ALARMS
EXIT
Ver x.x
DEFAULTS
SETUP
(For the DVS14 and DVS18)
KEY LOCK OFF
TITLES
DWELL
DEFAULTS
EXIT
Ver x.x
SETUP
Figure 10 - Setup Menu
Key Lock
Select this option to turn the eyboard loc function ON and OFF. If the eyboard is loc ed,
an operator will be unable to switch from camera to camera or change modes. The only
buttons that will have any effect will be the Number 1 button and Auto button, which when
held together will open the menu system. The eyboard loc can then be turned off if
required.
Titles
Select this option to enter the Titles sub-menu. This sub-menu is used to edit the title for
each camera input that is connected to the switcher. When the images from a camera input
are shown on-screen, the appropriate title is also shown so that the source of the images is
easily identifiable. For more details, see page 15.
Dwell
Select this option to enter the Dwell sub-menu. This sub-menu is used to specify the dwell
time for each individual camera when a sequence is performed on the main monitor.
If the switcher is a DVS24A or DVS28A, this sub-menu is also used to set the global dwell
time, which is applied to every camera in a sequence on the second monitor.
For more details on this menu, see page 16.
Defaults
Select this option to restore the original factory settings to the switcher. When this option is
selected, the action must be either confirmed by pressing the OK button, or cancelled by
pressing the button.
Alarms
This option is only available on the DVS24A and DVS28A switchers. It is used to enter the
Alarms sub-menu. This sub-menu is used to specify various options and settings concerning
any alarm inputs and outputs that are connected to the switcher. For more details, see
page 17.
Exit
Select this option to exit the menu system. Any changes made to the settings while in the
menu system are automatically saved.

Installation and Operating Manual DVS Series
15
TITLES SUB-ME U
The Titles sub-menu is used to edit the title for each camera input that is connected to the
switcher. The screen position of each title can also be adjusted:
1 RECEPTION
2 STOREROOM
3 CAR PARK
4 CAMERA 4
5 CAMERA 5
6 CAMERA 6
7 CAMERA 7
8 CAMERA 8
EXIT
TITLES
Figure 11 - Titles Sub-Menu
(For the DVS18 and DVS28A)
The Titles sub-menu has a numbered field for each camera input, and each of these fields
indicates the current title for that camera input
To alter a camera title:
1. Use the and buttons to highlight the required camera. The first character of the title
will be selected.
2. Using the and buttons, highlight the character in the camera title that is to be
changed.
3. Press the OK button. The Letter Selection screen is displayed.
4. Using the , , and buttons, navigate through the 256 characters available and
highlight the required character.
5. Press the OK button to select it.
6. Repeat steps 2-5 until the required title has been entered. The maximum title length is
12 characters.
7. When the required title has been entered, use the button to move the cursor to the far
left of the title. Press the button again to open the Title Position screen.
8. Using the , , and buttons move the camera title to the required position.
9. Press the OK button to confirm the title position.
10. If required, use the and buttons to select another title to edit. To leave the menu,
move the cursor to EXIT and press the OK button.

DVS Series Installation and Operating Manual
16
DWELL SUB-ME U
The Dwell sub-menu is used to specify the dwell time for each individual camera input
when a sequence is performed on the main monitor. If the switcher is a DVS24A or DVS28A,
this sub-menu is also used to set the global dwell time, which is applied to every camera
input in a sequence on the second monitor (also called the spot monitor).
1 02
2 05
3 09
4 20
5 18
6 00
7 00
8 00
EXIT
DWELL
(For the DVS18)
S 05
1 02
2 05
3 09
4 20
5 18
6 00
7 00
8 00
EXIT
DWELL
(For the DVS28A)
Figure 12 - Dwell Sub-Menu
The Dwell sub-menu has a numbered field for each camera input, and each of these fields
indicates a dwell time (in seconds). To alter the dwell time of an individual camera input,
use the and buttons to select the required camera input, and use the and buttons
to adjust the dwell time (between 1 and 60 seconds).
If there are any camera inputs that are not to be included in the sequence, set the dwell
time to zero.
On the DVS24A and DVS28A switchers, there is also a field labelled S. This field is used to
set the global dwell time, which is applied to every camera input in sequence on the second
monitor. To alter the global dwell time in the same way, use the and buttons to select
the field labelled S and use the and buttons to adjust the dwell time (between 5 and 60
seconds).
CAUTION
Do not set the dwell time of all inputs to 0 seconds as this can cause the unit to
freeze.

Installation and Operating Manual DVS Series
17
ALARMS SUB-ME U
The Alarms sub-menu is only available on the DVS24A and DVS28A switchers. This sub-
menu is used to specify various options and settings concerning any alarm inputs that are
connected to the switcher.
MODE TRANS
MULTIPLE HOLD
CLEARED HOLD
OUTPUT CONT
EXIT
ALARMS
Figure 13 - Alarms Sub-Menu
(For the DVS24A and DVS28A)
MODE
This item is used to specify the mode in which the alarm inputs will wor . The options
available are:
Trans (Transparent)
The switcher will return to cleared status automatically when the alarm input is no longer
current. When using this option, there is no need for an alarm input to be ac nowledged
and cleared by an operator.
Ack (Acknowledge)
An alarm input must be cleared by pressing the button that corresponds to the alarm input
that has been triggered. When the button is pressed, the cleared status will then be
recognised by the switcher. (The cleared status of the main monitor can be specified using
the Cleared item on page 18).
MULTIPLE
This item is used to specify what is shown on the main monitor when more than one alarm
is triggered. The options available are:
Hold
The main monitor will display images from the last alarmed camera input to be triggered.
Seq (Sequenced)
Images from each alarmed camera input will be shown in a sequence with a two second
dwell time.

DVS Series Installation and Operating Manual
18
ALARMS SUB-ME U
CLEARED
This item is used to specify what is shown on the main monitor once all alarm inputs are
cleared. The options available are:
Hold
Images from the alarmed camera input will continue to be shown on the main monitor.
Return
The switcher will return the main monitor to the camera that was being shown before the
alarm was activated.
OUTPUT
This item is used to specify how the relay contact (a set of three pins in the Alarms I/O
Connector) that controls the alarm output wor s when an alarm input is triggered. The
options available are:
Cont (Continuous)
The relay will be operate continuously from the time the alarm is triggered until it is cleared.
This option would be used when the alarm output is connected to a VCR alarm input so that
continuous images can be recorded during the alarm period.
Pulse
The relay will operate for one second from the time the alarm is triggered.

Installation and Operating Manual DVS Series
1
MOU TI G I STRUCTIO S
A DVS Series Des top Video Switcher can be permanently fixed to a suitable des top or
other wor surface. Referring to the diagram below:
1. Using the supplied template (on page 21 of this manual), drill three holes suitable for
No. 6 round head woodscrews.
2. Fit screw A leaving it protruding from the surface by approximately 6.5mm.
3. Locate the eyhole shaped slot (on the underside of the DVS unit) over the head of the
screw. Slide the DVS until the screw locates into the slot.
4. Fit the screws mar ed B through the two slot-shaped holes at the rear of the DVS unit.
Do not overtighten these screws.
6.5mm
A
B
B
Screws to be No. 6 round head
woodscrews. Length to suit substrate
Figure 14 - Screw arrangement for mounting the DVS Series Desktop Switcher

DVS Series Installation and Operating Manual
20
SPECIFICATIO S
Inputs and Outputs
 DVS14: 4 video inputs, 1 video output (5 buttons)
 DVS18: 8 video inputs, 1 video output (9 buttons)
 DVS24A: 4 video inputs, 2 video outputs (6 buttons)
 DVS28A: 8 video inputs, 2 video outputs (10 buttons)
Power Supply
 230V AC +/-10%
 50Hz
6W
This product should only be used with the supplied +12V DC power supply
(Baxall Reference PSU11 or PSU14)
Video Signals
 All video 1V p -p composite video via 75W coaxial cable with BNC connectors
 Inputs AC coupled, 75W terminated, maximum input voltage range +/-5V
Features
 Sequences camera inputs in numerical order s ipping unused or deselected inputs.
 Switcher configuration achieved using on-screen menu system.
 Dwell time is individually adjustable between 1 and 60 seconds on main monitor and
globally adjustable between 5 and 60 seconds on second monitor.
 12 character camera title for each input, individually positionable anywhere on the screen.
Factory Defaults
 Key Loc - Off.
 Camera Titles - all camera titles set to CAMERA followed by the relevant input number.
Every title positioned in top left corner of screen.
 Dwell Times - all dwell times set to five seconds.
 Alarm Settings - Mode to ACK, Multiple to HOLD, Cleared to HOLD, Output to CONT.
eight
0.4g
Material
 Flare retardant ABS with galvanised steel base
 0.375mm Lexan® polycarbonate label with 0.06mm thic adhesive bac ing
Colour
 Graphite-grey, blue and blac lettering, blue buttons
Environmental
 Operating: Temperature: -10°C to +50°C
Humidity: 10% to 80% relative humidity (non-condensing)
 Storage: Temperature: -20°C to +60°C
Humidity: 10% to 95% relative humidity (non-condensing)