Sensoray 2231 Hardware Manual

SENSORAY | p. 503.684.8005 | email:[e-mail] | www.SENSORAY.com

7313 SW Tech Center Drive | Portland, OR 97203

Analog HD USB

Video Capture Device

Model 2231

Hardware Manual

Ver. 1.0.0 | September 2018

2

Table of Contents

Limited warranty ....................................................................................................... 3

Introduction .............................................................................................................. 4

System Requirements ................................................................................................ 5

Block Diagram .......................................................................................................... 6

Connectors ............................................................................................................... 7

JP1, video inputs/output ........................................................................................ 7

JP2, audio inputs ................................................................................................... 7

JP3, power ............................................................................................................ 8

JP6, interfaces ....................................................................................................... 8

Specifications ............................................................................................................ 9

Software................................................................................................................. 10

Firmware updates ................................................................................................... 11

Thermal Considerations ........................................................................................... 12

Revision history ...................................................................................................... 13

3

Limited warranty

Sensoray Company, Incorporated (Sensoray) warrants the hardware to be free from defects
in material and workmanship and perform to applicable published Sensoray specifications
for two years from the date of shipment to purchaser. Sensoray will, at its option, repair or
replace equipment that proves to be defective during the warranty period. This warranty
includes parts and labor.

The warranty provided herein does not cover equipment subjected to abuse, misuse,
accident, alteration, neglect, or unauthorized repair or installation. Sensoray shall have the
right of final determination as to the existence and cause of defect.

As for items repaired or replaced under warranty, the warranty shall continue in effect for
the remainder of the original warranty period, or for ninety days following date of shipment
by Sensoray of the repaired or replaced part, whichever period is longer.

A Return Material Authorization (RMA) number must be obtained from the factory and
clearly marked on the outside of the package before any equipment will be accepted for
warranty work. Sensoray will pay the shipping costs of returning to the owner parts that are
covered by warranty. A restocking charge of 25% of the product purchase price will be
charged for returning a product to stock.

Sensoray believes that the information in this manual is accurate. The document has been
carefully reviewed for technical accuracy. In the event that technical or typographical errors
exist, Sensoray reserves the right to make changes to subsequent editions of this document
without prior notice to holders of this edition. The reader should consult Sensoray if errors
are suspected. In no event shall Sensoray be liable for any damages arising out of or related
to this document or the information contained in it.

E

XCEPT AS SPECIFIED HEREIN, SENSORAY MAKES NO WARRANTIES, EXPRESS OR

IMPLIED, AND SPECIFICALLY DISCLAIMS ANY WARRANTY OF MERCHANTABILITY OR

FITNESS FOR A PARTICULAR PURPOSE. CUSTOMER’S RIGHT TO RECOVER DAMAGES

CAUSED BY FAULT OR NEGLIGENCE ON THE PART OF SENSORAY SHALL BE LIMITED

TO THE AMOUNT THERETOFORE PAID BY THE CUSTOMER. SENSORAY WILL NOT BE

LIABLE FOR DAMAGES RESULTING FROM LOSS OF DATA, PROFITS, USE OF PRODUCTS,

OR INCIDENTAL OR CONSEQUENTIAL DAMAGES, EVEN IF ADVISED OF THE

POSSIBILITY THEREOF.

Third party brands, names and trademarks are the property of their respective owners.

4

Introduction

Model 2231 captures video from an analog HD (TVI, CVI, AHD) or SD (composite)
source. It has a USB 2.0 interface. Model 2231 captures scaled down HD or native
resolution SD uncompressed video, and will overlay and compress resolutions up to
1080p30. It can simultaneously send both compressed and uncompressed video to the
host computer.

Analog audio can be captured from a microphone or line source. Audio may be sent
uncompressed, or it may be compressed and multiplexed into a transport stream along
with compressed video, or both simultaneously.

The 2231 is a UVC (USB Video Class) device, which means it does not require a device­specific driver and can be easily controlled using popular video APIs such as
DirectShow and Video4Linux. Sensoray provides Software Development Kits (SDKs)
for several operating systems to accelerate application development. Our fully
functional demo program illustrates model 2231's capabilities and serves as an excellent
starting point for custom designs.

The video processor implements efficient H.264 video compression, producing output
data formatted as either MPEG transport stream (MPEG-TS) or in MP4 or AVI file
formats. Audio compression is performed using AAC-LC. The stream multiplexer
employs high precision hardware timestamps to ensure perfect audio-video sync on
players. Snapshot capture is also supported, with MJPEG compression available for
both snapshots and AVI streams.

5

System Requirements

USB 2.0 high speed port is required. Model 2231 is a bus powered device. It is not
recommended to plug the 2231 into USB hubs, since some of those do not provide
sufficient bandwidth. If used, the hubs must be powered, capable of providing standard
device current of 0.5 A.

Supported operating systems:

Windows 7, 8, 10;

Linux 2.6, 3.x, 4.x.

6

Block Diagram

Fig.1. Model 2231 block diagram.

7

Connectors

All mating connectors use crimping contacts Molex 0500798100 for 26-28 AWG wire.
Contacts labeled "reserved" should be left unconnected.

JP1, video inputs/output

Molex 0532610671. Mating part: Molex 51021-0600.

Pin Signal

1 composite out

2 ground

3 video input 1

4 ground

5 video input 2

6 ground

JP2, audio inputs

Molex 0532610771. Mating part: Molex 51021-0700.

Pin Signal
1 ground

2 microphone in +

3 microphone in

-

4 ground

5 line input right
6 ground
7 line input left

Note: microphone input expects an electret condenser microphone:

8

JP3, power

Molex 0532610571. Mating part: Molex 51021-0500.

Pin Signal
1 ground

2 reserved

3 reserved

4 power,

- (ground)

5 power (9-36 V), +

JP6, interfaces

Molex 0532611071. Mating part: Molex 51021-1000.

Pin Signal

1 reserved

2 reserved

3 ground

4 reserved

5 reserved

6 ground

7 ground

8 USB data -

9 USB data +

10 USB +5V (V

BUS

)

9

Specifications

Video Input/Output

Input video formats

HD-

TVI, HD

-

CVI, AHD, composite (NTSC/PAL)

Maximum

resolution/frame rate

1920x1080p30

Video output NTSC/PAL, scaled down video for HD input formats

Output video

streams

H.264

High Profile @ Level 3 (MP4, AVI, transport stream)

JPEG Single snapshots, AVI

Raw (uncompressed)

UYVY (

scaled down

)

Electrical, mechanical and environmental
Dimensions 48x25x10 mm

Mass 16 g

Operating temperature

0º to 70º C

. Please see

"

Thermal considerations

" section.

Interface USB 2.0

Power

USB bus powered

, not to exceed 2.5 W

10

Software

Software (Windows and Linux)

Driver UVC video

SDK

Library wrappers around the DirectShow

(Windows) or V4L2 (Linux) APIs

11

Firmware updates

Model 2231 features flash memory that contains the firmware used to operate the
hardware on the device. This firmware can updated in the field to fix problems or add
new features.

Firmware is updated by selecting an Update option in the demo application available as
part of the SDK, or by calling the corresponding SDK function. Upon those actions the
device reconnects as a USB mass storage device with the name Update2263. (If the
AutoPlay menu appears, choose the “Open folder to view files option”). In this mode, a
new firmware file may be copied to the Update2263 folder. While the file is being
written to the flash memory, the red LED blinks. Do not unplug the device while the
red LED is blinking. After the update is complete, the Update2263 folder is closed, and
the 2231 reconnects as a UVC device. To cancel the update mode without updating
firmware, right click the Update2263 removable device in Computer and click Eject. In
the unlikely event that a firmware update was interrupted in a way that prevents the
device from operating, an original firmware mode (Safe Boot mode) is available.
Original firmware is loaded in case the new image is corrupt. Running firmware
version can be detected using the demo application, or by calling the corresponding
SDK function.

12

Thermal Considerations

Measures must be taken to remove about 1 W of heat from the integrated circuit U1 on
the video processor board (marked as model 2960). The implementation choice depends
on the mechanical and environmental requirements of the particular application.

Fig.2. Location of U1 on model 2960 board.

One approach is to use a miniature self-adhesive heat sink, for example Advance
Thermal Solutions ATS-54150D-C1-R0.

Alternatively, a heat conducting path may be provided between U1 and the product's
enclosure. To ensure good thermal contact and avoid damaging the device we
recommend using Bergquist (or equivalent) thermal pads with the highest thermal
conductivity possible (5.0 W/m*K), for example, GPHC5.0 or GP5000S35 of the smallest
possible thickness.

In any case the temperature of U1 should not exceed 85°C during operation.

13

Revision history

Version Notes

1.0.0, September 2018 Initial release.