Ros SCE-X User manual

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ROS SCE-X 36:1
COLOR ZOOM CAMERA
OPERATION AND MAINTENANCE MANUAL
SERIAL NUMBER: __________
SALES ORDER: __________
5618 Copley Drive
San Diego, CA 92111-7902
TEL: [phone]
FAX: [phone]
www.rosys.com

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STANDARD ORDERING FORMAT FOR THE SCE-X-36 CAMERAS

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TABLE OF CONTENTS
WARRANTY ...................................................................................................................................V
CUSTOMER ASSISTANCE ..........................................................................................................VI
CHANGE RECORD......................................................................................................................VII
1DESCRIPTION........................................................................................................................ 1
2SCE-X, 36:1 CAMERA SPECIFICATIONS............................................................................ 3
2.1 POWER.......................................................................................................................................3
2.2 CAMERA PERFORMANCE DATA ..............................................................................................3
2.3 DIMENSIONS..............................................................................................................................4
2.4 WEIGHT (LESS CONNECTOR) ........................................................................................................4
2.5 MATERIALS.................................................................................................................................4
2.6 ENVIRONMENTAL......................................................................................................................4
2.7 STANDARD SCE-X CONNECTORS...........................................................................................4
2.7.1 Impulse AG-306.......................................................................................................................4
2.8 CAMERA INTERCONNECTIONS ...............................................................................................5
2.8.1 Basic Interconnections (Bipolar Control).................................................................................5
2.8.2 Cameras with RS-232 Control (Option)...................................................................................5
2.8.3 Other Configurations ...............................................................................................................6
2.9 CAMERA MODE SELECTION.....................................................................................................6
2.9.1 Mode Selection........................................................................................................................6
3CAMERA OPERATION ........................................................................................................ 10
3.1 GENERAL..................................................................................................................................10
3.2 INSTALLATION .........................................................................................................................10
3.3 EXPOSURE CONTROL ............................................................................................................10
3.4 ZOOM CONTROL......................................................................................................................11
3.5 FOCUS CONTROL....................................................................................................................11
3.6 IMAGE FLIPCONTROL.............................................................................................................12
3.7 NEGATIVE COLOR VIDEO CONTROL.....................................................................................12
3.8 COMPUTER CONTROL............................................................................................................12
3.9 LONG LINE AMPLIFICATION (LLA)..........................................................................................12
3.9.1 Adjust LLA in Bipolar/Unipolar/Differential mode...................................................................13
3.9.2 Adjust LLA in RS-232 mode..................................................................................................14
3.10 OVERLAYCONTROL................................................................................................................14
4THEORY OF OPERATION................................................................................................... 16
4.1 UNIVERSAL INTERFACE BOARD ASSEMBLY........................................................................16
4.1.1 Reverse Polarity Protection...................................................................................................16
4.1.2 Automatic Resettable Fuse Protection..................................................................................16
4.1.3 Power Conditioning................................................................................................................16
4.1.4 Standard Control Circuit Operation .......................................................................................16
4.1.5 Video Signals.........................................................................................................................17
4.1.6 Long Line Amplifier Circuit Operation....................................................................................17
4.1.7 Microcontroller.......................................................................................................................18
5TROUBLESHOOTING ......................................................................................................... 18
5.1 GENERAL..................................................................................................................................18
5.2 CAMERA DISASSEMBLY..........................................................................................................19

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5.3 CAMERA OPERATIONAL CHECKS .........................................................................................19
5.4 CAMERA TROUBLESHOOTING ..............................................................................................19
6MAINTENANCE.................................................................................................................... 21
APPENDIX.................................................................................................................................... 22

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WARRANTY
Remote Ocean Systems, Inc. (hereinafter called "ROS") warrants its products as stated below
subject to the conditions specified.
ROS warrants its products, when operated under normal conditions, to be free from defects in
material or workmanship for a period of one year from the date of purchase providedthatinspection
by ROS discloses that such defects developed under normal and proper use. ROS products
repaired or replaced pursuant to this warranty shall be warranted for the unexpired portion of the
warrantyapplying to the original product. The liabilityof ROS under this warranty shall existsubject
to the following conditions:
(a) ROS is properly notified of such defects by Purchaser, and the defective product is
returned to ROS, transportation charges paid by Purchaser.
(b) ROS shall be released from all obligations under its warranty in the event repairs or
modifications are made by persons not authorized by ROS.
(c) Representations and warranties made by any person, including distributors and
representatives of ROS, which are inconsistent or conflict with the terms of this warranty,
shall not be binding upon ROS unless reduced to writing andapprovedbyan officerof ROS.
ROS shall in no event be liable for other direct, special, incidental, consequential, indirect or
penal damages.
(d) This warranty shall be governed by the laws of the State of California.
In the event the defect is determined to be within the terms of this warranty, then ROS agrees to
repair and/or replace (at ROS' discretion) the product or defective portion at no charge to the
Purchaser. This warranty does not apply to expendable items or to normal wear and tear and is
conditional upon performance of normal preventative maintenance procedures.
Our commitment to quality and customer service directs us to constantly strive to improve our
products. The materials and specifications presented in our manuals and data sheets are correct
and accurate to the best of our knowledge, and are presented in good faith. However, the
information is not guaranteed and is subject to change without notice.
LIMITATION OF REMEDIES
Purchaser assumes all risk and liability for results obtained in any installation, operation, or use of
the product. Purchaser’s sole remedy for any breach of warranty by vendor shall be limited to the
“express remedies” set forth above. Otherwise, in no event shall vendor, its agents, or employees be
liable to the original purchaser or any third party for any consequential or incidental damages or
expenses of anynature arising directlyout of or in connection with the useofvendorproducts.Even
if vendor has been advised of the possibility of such damages or expenses. In any event, unless
otherwise contrary to state law, vendor liability under this limited warranty shall not exceed the
purchase price of the product.

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CUSTOMER ASSISTANCE
ROS, Inc. uses a worldwide network of stocking distributors and representatives who are
familiar with our products and are able to provide assistance during installation and/or
operation of these products.
If you have any questions or problems with this product that are notcovered bythis manual
or instruction, please contact our agent in your area, or contact us directly by phone orfax
or email.
TEL: [phone]
FAX: [phone]
Sales: [email protected]
Web Site: www.rosys.com
Technical Support: [email protected]

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CHANGE RECORD
REV DESCRIPTION DATE
A Initial Release 05FEB08,BAL

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1 DESCRIPTION
The SCE-X, 36:1 is a high performance miniature Color Zoom camera intended for use in
shallow water applications. The SCE-X, 36:1 is rated to 70 meters water depth. The
camera has been designed from the outset with an eye towards simple, straightforward
operation and maintenance. All major subassemblies: Rear Endcap, Universal Interface
Board with Long Line amplifier, and Camera Module have been designed such that any
part may be replaced in minutes utilizing only minimal hand tools. Soldering skills are
required only for major repairs or modifications to thecameraelectronics. Inadditiontothe
standard configuration outlined here, ROS offers variations to the basic SCE-X, 36:1.
These include:
* Alternate Connectors
* Control using Unipolar or Differential Voltages
* Remote Control from a Computer Terminal over RS-232 link
Due to the many options and variations possible, some areas of this manualmaynotapply
to a specific camera or application. If your particular SCE-X, 36:1 camera is significantly
different from the standard configuration, these details will be described in a manual
addendum. When in doubt, please consult your local representative or ROS for
assistance.
The ROS SCE-X, 36:1 camera is illustrated by the installation drawings in the appendix.
The camera housing is constructed of stainless steel and is designed to be operated in
natural but hostile environments. The front window is made of impact resistant optical
grade acrylic and utilizes a single O-ring seal. The external connector on the standard
camera is an Impulse Model AG-306.
The SCE-X, 36:1 camera utilizes a high resolution, EXview HAD (Hole Accumulation
Diode) image sensor coupled to a miniature 36:1 zoom lens in order to provide high-
resolution video under widely varying and adverse viewing conditions. Scene illumination
and White Balance correction is completely automatic. Auto-Focus and Auto-Exposure
operation is enabled upon power-up, but these may be overridden at any timewith manual
inputs if operating conditions warrant.
The basic SCE-X, 36:1 camera is capable of providing video outputs in composite (NTSC
or PAL). All output video lines are buffered and fused to prevent accidental damage to the
camera electronics in the event of improper connection. In addition, differential output
mode may be selected for use with balanced shielded twisted pair cables.
All of the available modes of operation can be selected using compact switches located on
a Mode Select Board. This board is fully accessible when the camera is removed from the
pressure housing. No jumper installation or soldering is required to select the modes of
operation.

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The Universal Interface circuit board includes circuits that condition the input power,
protecting the camera electronics from overload voltage or accidental application ofpower
with reversed polarity. In addition, circuits on this board generate the camera control
commands sent to the zoom camera module in order to achieve control of Focus position,
Zoom position, and Exposure Settings.
A wiring diagram (Drawing No. 53-04126) outlining the basic interconnections within the
SCE-X, 36:1 Camera is included in the Appendix of this manual.

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2 SCE-X, 36:1 CAMERA SPECIFICATIONS
2.1 POWER
Operating voltage: 11 - 30 VDC, 350mA (max)
2.2 CAMERA PERFORMANCE DATA
Sensor: 1/4" EXview HAD CCD
Pixels: 380,000 (NTSC)
440,000 (PAL)
Resolution: 470 TVL minimum (NTSC)
460 TVL minimum (PAL)
Scene illumination: 1/60s mode: 1.4 lux typical
Signal to Noise Ratio: >50 Db
Composite Video Output VBS: 1.0 Vp-p (Sync Negative)
Long Cable Compensation: Adjustable for cables of length 0 to 5,000 ft (0
to 1524m) of RG-59/U or equivalent balanced
line cable
Zoom Range: 36:1 optical (3.4 to 122.4 mm focal length)
Digital Zoom: 12x (432x with optical zoom combined)
Field of View In Air: 69.2oDiagonal (full wide angle)
57.8oH x 44.9oV @ full wide angle
1.7oH x 1.2oV @ full telephoto
Field of View In Water: 50.2oDiagonal (full wide angle)
42.3oH x 33.2oV @ full wide angle
1.3oH x 0.9oV @ full telephoto
Minimum Object Distance:
In air front of window @ full wide angle
1.5m @ full optical telephoto
In water front of window @ full wide angle
2m @ full optical telephoto
Iris Range Automatic, f/1.6 - f/4.5

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2.3 DIMENSIONS
Length: (less connector) 5.47 inches (139 mm)
Diameter (max): 3.18 inches (81 mm)
2.4 WEIGHT (less connector)
Stainless In Air 4.2 pounds (1.91 kg)
In Water 2.4 pounds (1.09 kg)
2.5 MATERIALS
Housing: Electropolished Stainless Steel
Viewing Port: Polished Acrylic
2.6 ENVIRONMENTAL
Operating Temperature: 0ºC to +50oC (32ºF to 122ºF)
Storage Temperature: -20oC to +60oC
Depth Rating: 70 m (230 ft)
2.7 STANDARD SCE-X CONNECTORS
2.7.1 Impulse AG-306
Endbell Connector: IMPULSE AG-306
Inline Mating Connector: IMPULSE AG-206 with sleeve
Pin 6
Pin 1

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Figure 1: IMPULSE AG-306 Face View
2.8 CAMERA INTERCONNECTIONS
2.8.1 Basic Interconnections (Bipolar Control)
Typical connections for SCE-X 36:1 camera with bipolar control are:
CONNECTOR PIN FUNCTION
1 Coax shield and power supply common
2 Composite Video Output
3 Camera power Input (+11 to +30 VDC)
4 Focus Control (+12V - Near, -12V - Far)
5 Zoom Control (+12V - Telephoto, -12V - Wide Angle)
6 Exposure Control (+12V - Increase, -12V - Decrease)
Three (3) additional pins are required if the camera isgoingtobe used with Unipolar
or Differential modes of operation.
2.8.2 Cameras with RS-232 Control (Option)
SCE-X, 36:1s can be furnished with interconnections for remote control from a
computer terminal or any device that can send RS-232 messages. On these
cameras all of the operating functions including focus, zoom and exposure can be
controlled from the computer through two conductors, utilizing standard RS-232
serial data communication. A typical connection fora camerawith RS-232 control is
shown below:
CONNECTOR PIN FUNCTION
1 Coax shield and power supply common
2 Composite Video Output
3 Camera power Input (+11 to +30 VDC)
4 TXD IN (RS-232)
5 RXD IN (RS-232)
6 Digital Ground
Notes: An RS-232 communications link is limited to a cablelength typicallyless than
100 meters.
ROS can furnish basic software for enabling computer control through and
RS-232 (or RS-485) communications link. The serial RS-232 code for
camera commands can also be furnished by ROS for users that prefer to
develop their own customized software.

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2.8.3 Other Configurations
SCE-X, 36:1 Cameras can be furnished with other interconnectionsinorderto meet
customer’s requirements.
Typically, the SCE-X, 36:1 cameras are controlledusingbipolarsignals (+/-12V to 1
pin) as indicated under 2.8.1 above.
Cameras can also be configured for control with unipolar or differentialinput signals
instead of bipolar. The following describes the modes of operation and signals
required for each one including RS-232.
Bipolar (1 line) Most common mode since it is efficient in terms of camera
connector input pins and connecting wires required. For
example a single pin receiving a voltage provides dual control
by the polarity of the voltage. For example, +12V FocusNear, -
12V Focus Far.
Unipolar (2 line) This mode requires two camera inputpinsfor eachfunctionbut
a single polarity for the input control voltage. For example,
+12V applied to pin 4 for Focus Near, or +12V applied to pin 9
for Focus Far.
Differential (2 line) This mode requires simultaneous application of a voltage
source (both + and -) across two camera input pins. For
example if the source (typically12 VDC) is connected with + to
pin 4 and –to pin 9 this causes Focus Near, and if polarity is
reversed with –to pin 4 and + to pin 9 the Focus Far action is
actuated.
RS-232 This mode allows control of all lens functions on the basis of
RS-232 control signals from a controller external to the
camera. Additional data on RS-232 operation is included in
section 2.8.2 above and 3.6 below.
2.9 CAMERA MODE SELECTION
The SCE-X, 36:1 Camera is designed to operate in a variety of operating modes that
determine what input control signals are required and what output signalswillbe delivered.
The selection of operating modes is normally made at the factory and may on occasion
require changing at the customer facilities.
2.9.1 Mode Selection
If the user needs to make changes in the operating modes the camera includes an
internal Mode Selection Board assembly with a group of small switches to

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accomplish these changes. The internal electronics assembly must betemporarily
removed from the housing and changesmade. The ModeSelectionBoard is clearly
accessible so that the switches can be operated easily.
There are two separate DIP switch assemblies on the board labeled S1 and S2. S1
has 8 and S2 has 6 individual switches. The ON position is indicated on each
switch assembly.
A tabulation that follows shows the positions of switches in order to select specific
modes of operation. S1-1 through S1-5 provides control of input control mode
selection. S1-6 and S1-7 provide for video output mode selection and S2-2 through
S2-4 provide microcontroller inputs.

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The following illustrations show several typical combinations of mode selection with the
corresponding switch positions:
ON
1 2 3 4 5 6 7 8
S1
S2
1 32 654
ON
SELECTION: BIPOLAR INPUTS
SELECTION: UNIPOLAR (OR DIFFERENTIAL) INPUTS
S1
1 32 8654 7
S2
ON
1 32 54 6
ON
S1
1 32 8654 7
S2
ON
1 32 54 6
ON
SELECTION: UNIPOLAR (OR DIFFERENTIAL) INPUTS
321
S1
ON
74 5 6 8
S2
654321
ON
AND BALANCED VIDEO OUTPUT
SELECTION: BIPOLAR INPUTS & BAL VID OUTPUT
ONON
S1
1 542 3 86 7 1
S2
52 3 4 6
SELECTION: RS-232 CONTROL

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3 CAMERA OPERATION
3.1 GENERAL
Operation of the SCE-X, 36:1 Camera is straightforward, but there are some differences,
which may not be familiar to personnel accustomed to operating older closed circuit TV
system.
3.2 INSTALLATION
For ease of mounting, the SCEX, 36:1 camera has a mounting saddle, integral to its
housing, with two 1/4-20 UNC tapped holes on 2.00 inch mounting centers. The camera
must be mounted in a position that will protect against impacts with obstacles passing
close to the camera.
The pins on the camera connector should be cleaned and dried then sprayed with a
silicone-based lubricant. Grease should not be used on enclosed connectors because it
will eventually become impacted in the mating connector, forcing the contacts apart and
causing intermittent operation.
3.3 EXPOSURE CONTROL
The SCE-X, 36:1 camera provides operation over a wide range of scene illumination. To
achieve this wide range the camera achieves Exposure Control through composite
operation of the iris, video gain, and shutter modes. For most operations automatic
exposure mode is used to optimize the camera for the existing illumination.
The camera’s iris, gain, and shuttering functions are all controlled by an internal
microprocessor. This automatic mode is normally selected when the camera is turned on.
As illumination is increased from complete darkness, the AGC (automatic gain control) is
the first function to operate from maximum to minimum gain. At the point of minimum gain
the iris begins to function, closing as the illumination continues to increase. If the
illumination continues to increase with the lens fully closed, the camera goes into a
shuttering mode where the CCD is allowed to capture light over decreasing time intervals
as the illumination increases.
In the event that manual Exposure Control is desired due to unusual viewing conditions
such as severe reflections or flashing lights, the switch on the remote control unit can be
toggled towards either the INCR or DECR position. This will place the camera in the
manual mode and each toggle will result in a step change of the exposure. The operator
normally continues to toggle this switch until an optimum display is seen on the television
monitor.
To restore automatic Exposure Control simultaneously operate the Zoom towards WIDE
and the Exposure switch towards DECR.

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3.4 ZOOM CONTROL
The zoom lens operates whenever a Zoom switch on a remote control unit is operated
towards either the Tele or Wide positions. The zoom function continues as long as the
switch is depressed, until the lens zoom limit is reached. Tele operatestowards increasing
focal length settings providing reduced viewing angles with increased magnification of
objects in the scene. Wide operation reduces focal length settings increasing viewing
angles and allows viewing of greater areas of a scene.
When selecting different zoom lens settings the operator should be awareof thechange in
the Minimum Object Distance (MOD) changes as the viewing angle changes. At the full
telephoto position in air, the MOD is approximately 60 inches (1.5 m). At the full Wide
Angle position in air, the MOD is the front window.
3.5 FOCUS CONTROL
The SCE-X, 36:1 camera is normally energized and normally operated in Auto-Focus
mode. This provides nearly ideal focusing when the camera is aimed at different scenes
and tracks while the zoom control is actuated. In some instances wherethere are objects
in a scene at different distances and there is a need for focusing on specific objects,
operation in a Manual Focus Mode may be required. This is achieved by momentarily
operating the Focus switch on the remote control unit.
To restore Automatic Focus Control simultaneously operate the Zoom towards WIDE and
the Focus switch towards FAR.
Generally, most in-air users are able to stay in Auto-Focus mode all the time. The one set
of conditions, which may force the operator to switch into Manual mode, is intrying toview
a relatively close object that does not have much sharp detail. This occurs because the
Auto-Focus system relies on increasing the sharpness of edges in the viewed image in
order to optimize the focus.
If there are no edges to utilize for this process, the Auto-Focus will not be able to properly
compensate and may even tend to "hunt" around the optimum focus point. Focus hunting
may also be caused by lowillumination. Again, if the camera is unable toproperlysharpen
edges due to insufficient video level, Auto-Focus operation will be less than optimum.
Switching over to Manual mode and then focusing with the manual remoteFocuscontrolis
the best option.
Underwater users have a special set of problems, which make Auto-Focusoperation more
difficult. Seawater normally contains particles in suspension and undissolved solids
(animal, plant life, etc.) that reduce the detail of a viewed image. If the image does not
have sharp detail, the Auto-Focus system will have a difficult time obtaining correct focus.
Manual operation may then be the best choice.

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3.6 IMAGE FLIP CONTROL
Another built in function is the electronic image flip. This function is very useful when the
camera is mounted on a vehicle (carrier) that is capable of rolling over or a positioner that
can tilt more than 90°. This function allows the user to electronically turn the image upside
down when necessary.
To activate or deactivate this function EXPOSURE INC (+12Vdc) and FOCUS NEAR
(+12Vdc) must be toggled simultaneously. As a wayof visualacknowledgementwhenever
this function is activated or deactivated the camera will momentarily will text overlay the
current function status (e.g. IMGFLP ON or IMGFLP OFF) depending of the state of the
function and if the overlay has is activated.
3.7 NEGATIVE COLOR VIDEO CONTROL
Another built in function is the negative color video effect. This function is useful when an
immediate change in contrast is needed. For example dark colors will be turned in white
and simultaneously a light colors as well white illumination will turn dark. Allowing the user
to see details in a shadowed area, like a crack.
To activate or deactivate this function EXP DEC (-12Vdc) and FOCUS FAR (-12Vdc) must
be toggled simultaneously. As a way of visual acknowledgement whenever this function is
activated or deactivated the camera will momentarily will text overlay the current function
status (e.g. NEGVID ON or NEGVID OFF) depending of the state of the function and if the
overlay has is activated.
3.8 COMPUTER CONTROL
ROS can furnish basic software for enabling computer control through an RS-232
communications link. The basic software displays a screen on the computer monitor with
sliders, buttons and other symbols that allow the use of a mouse to provide even more
functions than those listed above.
The serial code for camera commands can also be furnished by ROS for users who prefer
to develop their own customized software.
Cameras can be furnished with connections allowingnot only controlbut feedback of data
from the camera to the computer to display date, time, focus distance and other data
generated within the camera electronicsmodule. Again,someusersmayprefertodevelop
their own software allowing customized and added sophistication.
3.9 LONG LINE AMPLIFICATION (LLA)
As delivered, the SCE-X, 36:1 camera is set up for normal composite video output over a
relatively short length (<500-ft) of coaxial cable, typically RG-59/U.

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NOTE: A variety of coaxial cables are available with the RG-59 designation. Many of
these cables are intended for RF (radio frequency) applications such as the
distribution of RF carriers in a commercial home cable TV network. These RF
cables are not suitable for baseband video of the type generated by the SCE-X,
36:1 camera. The GOOD QUALITY RG-59 cables for thiscamera must be selected
with good performance in video transmission. Please consult ROS if additional
assistance in selecting optimum cables is desired.
For cases where the camera is going to be operated over extended lengths of coaxial or
twisted pair cabling, long-line amplifier driver circuits are included within the camera. This
circuitry can compensate for video loss.
NOTE: The Long Line Amplifier may be disabled by adjusting Mode Selection DIP
switches. Refer to Section 2.9, Camera Mode Selection. This option requires
temporarily removing the camera electronicsfromthe housingto accessthecontrol.
3.9.1 Adjust LLA in Bipolar/Unipolar/Differential mode
Adjusting the LLA is a simple 3-step procedure:
Step 1: Enter the LLA adjust mode.
This is performed by simultaneously actuatingZoom Tele and FocusNear. Entering
this mode, will display the current LLA setting on the television monitor screen in the
following format:
LLA XX:100
Where XX is a number from 00 to 99, representing the current LLA setting as a
percentage of its maximum value. At the minimum (for short cables) numbers
corresponds to 00:100 and at the maximum (for long cables) numbers corresponds
to 100:100.
100:100 will not be displayed it will actually display: LLA MAX
Having the LLA setting displayed on the television display as described above
verifies that the camera is in the LLA setting mode.
Step 2: Adjust the LLA by increasing or decreasing the LLA setting.
Once the camera is in LLA setting mode, actuating Focus and/or Exposure has no
effect on the camera. And actuating the Zoom control has no effect on the Zoom; it
will instead increase or decrease the LLA setting. The overlay will display the new
setting in real-time.
When the zoom control is actuated in Tele or Wide position, the LLA setting will
increase or decrease as long as the control is maintained in that position or untilthe
LLA reaches its minimum or maximum setting.