Silicon Graphics VBOB User manual

SGI™ Video Breakout Box Owner’s Guide
007-4243-002

CONTRIBUTORS
Written by Mark Schwenden and Alan Stein
Illustrated by Dan Young
Production by Diane Ciardelli
Engineering contributions by Eric Kunze, Reed Lawson, Joe Kennedy, Aldon Caron, Mike Weesner, Bruce Garrett, Kenji Kokaji, Raul Lopez, Viral
Kadakia, Michael Wright, and Ray Mascia.
COPYRIGHT
© 2001 Silicon Graphics, Inc. All rights reserved; provided portions may be copyright in third parties, as indicated elsewhere herein. No
permission is granted to copy, distribute, or create derivative works from the contents of this electronic documentation in any manner, in whole
or in part, without the prior written permission of Silicon Graphics, Inc.
LIMITED RIGHTS LEGEND
The electronic (software) version of this document was developed at private expense; if acquired under an agreement with the USA government
or any contractor thereto, it is acquired as "commercial computer software" subject to the provisions of its applicable license agreement, as
specified in (a) 48 CFR 12.212 of the FAR; or, if acquired for Department of Defense units, (b) 48 CFR 227-7202 of the DoD FAR Supplement; or
sections succeeding thereto. Contractor/manufacturer is Silicon Graphics, Inc., 1600 Amphitheatre Pkwy 2E, Mountain View, CA 94043-1351.
TRADEMARKS AND ATTRIBUTIONS
Silicon Graphics is a registered trademark, and SGI, the SGI logo, and IRIS InSight are trademarks of Silicon Graphics, Inc. All other third party
brands and names mentioned in this document are the property of their respective owners.
Cover Design By Sarah Bolles, Sarah Bolles Design, and Dany Galgani, SGI Technical Publications.
For regulatory and compliance information, see Appendix A.

007-4243-002 iii
Record of Revision
Version Description
001 January 2001
Initial Rev
002 April 2001
Second Rev

007-4243-002 v
Contents
Record of Revision . . . . . . . . . . . . . . . . . . . . . . iii
Figures . . . . . . . . . . . . . . . . . . . . . . . . . . vii
Tables . . . . . . . . . . . . . . . . . . . . . . . . . . ix
About This Guide. . . . . . . . . . . . . . . . . . . . . . . xi
Product Features . . . . . . . . . . . . . . . . . . . . . . . xi
Additional Information . . . . . . . . . . . . . . . . . . . . . xiii
Conventions and Terminology . . . . . . . . . . . . . . . . . . . xiii
Product Support . . . . . . . . . . . . . . . . . . . . . . . xiii
Reader Comments . . . . . . . . . . . . . . . . . . . . . . . xiv
1. VBOB Site Preparation and Specifications . . . . . . . . . . . . . . . 1
Site Preparation . . . . . . . . . . . . . . . . . . . . . . . 1
Technical Specifications . . . . . . . . . . . . . . . . . . . . . 3
2. Rackmounting and Hardware Overview . . . . . . . . . . . . . . . . 5
Mounting VBOB in an SGI 3000 Series Rack . . . . . . . . . . . . . . .5
Theory of Operation . . . . . . . . . . . . . . . . . . . . . . 8
LVDS Interface . . . . . . . . . . . . . . . . . . . . . . 9
Genlock . . . . . . . . . . . . . . . . . . . . . . . . 9
TMDS Interface (optional) . . . . . . . . . . . . . . . . . . . 9
3. VBOB Chassis Connectors and Cabling . . . . . . . . . . . . . . . . 11
Chassis Connectors . . . . . . . . . . . . . . . . . . . . . . 11
Rear Chassis LEDs. . . . . . . . . . . . . . . . . . . . . . . 13
Getting Started . . . . . . . . . . . . . . . . . . . . . . . . 14

vi 007-4243-002
Contents
4. VBOB CD . . . . . . . . . . . . . . . . . . . . . . . . . 15
A. Regulatory Specifications . . . . . . . . . . . . . . . . . . . . 17
Manufacturer’s Regulatory Declarations . . . . . . . . . . . . . . . . 17
CMN Number . . . . . . . . . . . . . . . . . . . . . . . 17
Class A Compliance . . . . . . . . . . . . . . . . . . . . . 17
Electromagnetic Emissions . . . . . . . . . . . . . . . . . . . 19
Japanese Notice . . . . . . . . . . . . . . . . . . . . . . 19
Industry Canada Notice (Canada Only) . . . . . . . . . . . . . . . 19
CE Notice . . . . . . . . . . . . . . . . . . . . . . . . 19
Radio and Television Interference . . . . . . . . . . . . . . . . . 20
Shielded Cables . . . . . . . . . . . . . . . . . . . . . . 20
Electrostatic Discharge . . . . . . . . . . . . . . . . . . . . 21
Index. . . . . . . . . . . . . . . . . . . . . . . . . . . 23

007-4243-002 vii
Figures
Figure i VBOB Front Panel . . . . . . . . . . . . . . . xii
Figure ii VBOB Rear Panel . . . . . . . . . . . . . . . xii
Figure iii Injury or Death Warning Icon. . . . . . . . . . . . xiii
Figure 1-1 Chassis Airflow Diagram . . . . . . . . . . . . . 2
Figure 2-1 Installing the Mounting Brackets on VBOB . . . . . . . . 6
Figure 2-2 Installing VBOB in the Rack . . . . . . . . . . . . 7
Figure 2-3 Internal Operation Block Diagram . . . . . . . . . . 10
Figure 3-1 VBOB Chassis Rear Panel Connectors . . . . . . . . . 11
Figure 3-2 Rear Chassis LEDs . . . . . . . . . . . . . . . 14

007-4243-002 ix
Tables
Table 1-1 Cooling and Power Requirements . . . . . . . . . . 1
Table 1-2 Physical and Environmental Specifications. . . . . . . . 3
Table 2-1 Rack Installation Hardware for VBOB . . . . . . . . . 5
Table 3-1 Rear Panel Connectors . . . . . . . . . . . . . . 12

007-4243-002 xi
About This Guide
This guide shows you how to install your SGI Video Breakout Box (VBOB).
The following topics are covered in this guide:
•Chapter 1, “VBOB Site Preparation and Specifications,”provides environmental
and technical information needed to properly set up and configure the VBOB
enclosure.
•Chapter 2, “Rackmounting and Hardware Overview,”explains how to mount the
VBOB into a rack and provides a technical overview of the system components.
•Chapter 3, “VBOB Chassis Connectors and Cabling,”describes all the connectors
and LEDs located on the back of the VBOB chassis.
•Chapter 4, “VBOB CD,”describes the VBOB software.
•Appendix A, “Regulatory Specifications,”lists all regulatory information related to
use of the VBOB in the United States and other countries.
Product Features
The VBOB is shipped for rackmounting in an SGI 3000 series rack or a user-supplied
rack. It can also be used as a table-top unit. The chassis is built in a 2U form factor. Some
of the VBOB’s features include:
•BNC input and output ports for High Definition and Standard Definition video
•LVDS input and output ports
•Genlock BNC connectors for High Definition and Standard Definition video
•RS-232 port for upgrades and system maintenance
•Optional TMDS digital video input ports

xii 007-4243-002
About This Guide
Figure i shows the VBOB front panel.
Figure i VBOB Front Panel
Figure ii shows the VBOB rear panel. For labeling of the rear panel connectors, see
Chapter 3.
Figure ii VBOB Rear Panel
HDOut
TMDSB
TMDSA
1
HDIn
GP I/O RS-422
RS-232 SD
Genlock
Timing Out HD
Genlock LVDS A LVDS B
SD In SD Out
Present Present
22
22
1
11
1
2CD
AB

About This Guide
007-4243-002 xiii
Additional Information
Manuals are available in various formats on the World Wide Web at:
http://techpubs.sgi.com/library
Enter a keyword search, or search by title to find the information or manual you need.
Conventions and Terminology
This guide uses the following conventions:
•Document titles are in italics.
•Names of files appear in Courier.
•References to chapters and sections within this guide are in quotation marks.
•Characters that you type on your keyboard are in Courier bold.
•Procedures are explained in numbered steps. When necessary, an explanation
follows the step.
•Warnings that describe conditions that could cause injury or death are highlighted
with the lightening bolt icon, as shown in Figure iii.
Figure iii Injury or Death Warning Icon
Product Support
SGI provides a comprehensive product support and maintenance program for its
products. If you are in North America, contact the Technical Assistance Center at
1-800-800-4SGI or your authorized service provider. If you are outside North America,
contact the SGI subsidiary or authorized distributor in your country.

xiv 007-4243-002
About This Guide
Reader Comments
If you have comments about the technical accuracy, content, or organization of this
document, please tell us. Be sure to include the title and document number of the manual
with your comments. (Online, the document number is located in the front matter of the
manual. In printed manuals, the document number is located at the bottom of each
page.)
You can contact SGI in any of the following ways:
•Send e-mail to the following address:
[email protected]
•Use the Feedback option on the Technical Publications Library World Wide Web
page:
http://techpubs.sgi.com
•Contact your customer service representative and ask that an incident be filed in the
SGI incident tracking system.
•Send mail to the following address:
Technical Publications
SGI
1600 Amphitheatre Pkwy., M/S 535
Mountain View, California 94043-1351
•Send a fax to the attention of “Technical Publications”at [phone].
SGI values your comments and will respond to them promptly.

007-4243-002 1
Chapter 1
1. VBOB Site Preparation and Specifications
The VBOB is shipped ready for rackmounting or it can be used as a table-top unit.
See Chapter 2, “Rackmounting and Hardware Overview”for information on mounting
a VBOB chassis in an SGI 3000 series rack.
Site Preparation
Table 1-1 provides site preparation information for a single VBOB chassis.
Table 1-1 Cooling and Power Requirements
Specification Value Per Server
Cooling requirements 256 Btu/hour
Power consumption 128 watts maximum
AC input to power supply 100-120/200-240 Vac at 50-60 Hz, 4/2A (autoranging)
Inrush current 5 amps maximum
Nominal current draw 0.8 amps @ 100-120 Vac, 0.4 amps @ 200 -240 Vac
UPS volt-amp rating 250 VA

2 007-4243-002
1: VBOB Site Preparation and Specifications
As shown in Figure 1-1, the airflow in the chassis flows through the mesh grill at the front
of the chassis, through the power supply enclosure, and over the motherboard. The hot
air exhausts out the back of the chassis.
Caution: Always keep at least 4 inches (10.2 cm) of clearance at the back of the chassis
for cooling.
Figure 1-1 Chassis Airflow Diagram
HDOut
TMDSB
TMDSConnec
1
HDIn
GPI/O RS-422
RS-232SD
Genlock
TimingOutHD
GenlockLVDSA LVDSB
SDIn SDOut
PresentPresent
22
22
1
11
1
2CD
AB

Technical Specifications
007-4243-002 3
Technical Specifications
Table 1-2 lists physical and environmental specifications.
Table 1-2 Physical and Environmental Specifications
Specification Value Per VBOB
Chassis Dimensions 3.5”in height (2U) x 17.5”in width x 20.5”in length (8.9 cm
height [2U] x 44.4 cm width x 52 cm length) [Length includes rear
BNCs]
Weight (Installed)36 lb (16.4 kg) maximum
Installation Orientation Any, with 4 in. (10.2 cm) clearance at back
Acoustic noise 50 dBA approximate
Air temperature
Operating
Non-operating +41 to +95 °F (+5 to +35 °C)
-40 to +149 °F (-40 to +65 °C)
Thermal gradient
Operating
Non-operating 18 °F (10 °C) per hour (maximum)
108 °F (60 °C) per hour (maximum)
Altitude
Operating
Non-operating 10,000 ft (3,048 m) MSL (maximum)
40,000 ft (12,192 m) MSL (maximum)
Relative humidity
Operating
Non-operating 10% to 85%, noncondensing
5% to 95%, noncondensing

4 007-4243-002
1: VBOB Site Preparation and Specifications
Mechanical shock
Operating
Non-operating 30G, 3ms (vertical) 15G, 3ms (horizontal)
critical velocity 200 in/s, critical acceleration 50G, 11ms
(trapezoidal)
Mechanical vibration
Operating
Non-operating 0.25G, 5-500-5Hz, @1 oct/min
0.5G, 3-200-3Hz, @1 oct/min
Table 1-2 (continued) Physical and Environmental Specifications
Specification Value Per VBOB

007-4243-002 5
Chapter 2
2. Rackmounting and Hardware Overview
This chapter describes the VBOB hardware. The first section shows you how to mount
the VBOB unit in a rack, and the following sections explain the theory of operation.
Mounting VBOB in an SGI 3000 Series Rack
You can install the VBOB chassis as a free-standing table-top unit, or mount it in a rack.
This section explains how to install the VBOB chassis in an SGI 3000 series rack. Before
you begin, make sure that you have the hardware listed in Table 2-1.
Warning: Personnel could be seriously injured and equipment could be damaged if
the rack topples over. Install all equipment into the rack from the lowest available
position. Also, make certain that the rack has sufficient power for the VBOB’s needs.
Check with the appropriate facilities authorities before installing this unit in a rack.
Note: This installation requires two people and a #2 Phillips screwdriver.
This procedure presumes that internal rackmounting rails are already installed and that
a vertical space of 3.5 in. (8.9 cm) is available.
Table 2-1 Rack Installation Hardware for VBOB
Part Description Quantity
10-32 x 1/4 in. screws 4
Front mounting brackets 1 pair

6 007-4243-002
2: Rackmounting and Hardware Overview
1. Find the two front mounting brackets and the four 10-32 x 1/4 in. screws in the
shipping container.
2. Place the VBOB on a flat surface and attach the front mounting brackets, as shown
in Figure 2-1.
3. With one person holding each side, place the VBOB on the desired slide rails, then
slide it inside the rack.
4. Attach the VBOB to the rack, as shown in Figure 2-2, using appropriate screws for
your rack.
The VBOB chassis is now securely attached to the rack.
Figure 2-1 Installing the Mounting Brackets on VBOB