Snell IQOMU312T-1A3 Operator's manual

snellgroup.com
User Instruction Manual
IQOMU31 / IQOMB31
3G/HD/SD-SDI Multiplexer for 4 AES/EBU Audio Streams with Fiber
Optic Interfacing

IQOMU31 / IQOMB31 www.snellgroup.com Information and Notices
Issue 1 Rev 2 Page 2 ©2013 Snell Limited
Information and Notices
Copyright and Disclaimer
Copyright protection claimed includes all forms and matters of copyrightable material and
information now allowed by statutory or judicial law or hereinafter granted, including without
limitation, material generated from the software programs which are displayed on the screen
such as icons, screen display looks etc.
Information in this manual and software are subject to change without notice and does not
represent a commitment on the part of Snell Limited. The software described in this manual is
furnished under a license agreement and can not be reproduced or copied in any manner
without prior agreement with Snell Limited. or their authorized agents.
Reproduction or disassembly of embedded computer programs or algorithms prohibited.
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authorized agents.
Snell operates a policy of continuous improvement and development. Snell reserves the right
to make changes and improvements to any of the products described in this document
without prior notice.
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IQOMU31 / IQOMB31 www.snellgroup.com Contents
Issue 1 Rev 2 Page 3 ©2013 Snell Limited
Contents
Information and Notices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1. Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.1 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.2 Block Diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.3 Order Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.3.1 IQOMU31. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.3.2 IQOMB31. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.4 Enclosures. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.4.1 B-style Enclosure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.4.2 A-style Enclosures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2. Technical Specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3. Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.1 IQOMU31 Rear Panel View. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.1.1 Input Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.1.2 Output Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.2 IQOMB31 Rear Panel View. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.2.1 Input Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.2.2 Output Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
4. Card Edge LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
5. Operation Using the RollCall Control Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
5.1 Information Window. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
5.1.1 Input Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
5.1.2 Video Status. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
5.1.3 Audio Input Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
5.2 Video. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
5.2.1 Input Select . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
5.2.2 Valid Input Standards. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
5.2.3 Default Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
5.2.4 Default Output Standard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
5.2.5 Blanking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
5.2.6 Freeze . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
5.3 Fiber . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
5.3.1 Fiber Optic Rx 1 and Fiber Optic Rx 2. . . . . . . . . . . . . . . . . . . . . . . . . . 18
5.3.2 Fiber Optic Tx 1 and Fiber Optic Tx 2 . . . . . . . . . . . . . . . . . . . . . . . . . . 18
5.4 Procamp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
5.4.1 Procamp Enable. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
5.4.2 Black Level. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
5.4.3 Hue Adjust . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
5.4.4 Master Video Gain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
5.4.5 Y Gain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
5.4.6 Cb/Cr Gain. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
5.4.7 Y/C Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
5.4.8 Picture Position . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
5.5 Video Delay. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
5.5.1 Horizontal Delay. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
5.5.2 Vertical Delay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
5.5.3 Frame Delay Added . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
5.5.4 Active Video Delay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
5.6 Embedder 1 to Embedder 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
5.6.1 Embedder NEnable. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
5.6.2 Pair 1 and Pair 2 Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
5.7 Router Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

IQOMU31 / IQOMB31 www.snellgroup.com Contents
Issue 1 Rev 2 Page 4 ©2013 Snell Limited
5.8 Audio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
5.8.1 Delays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
5.8.2 Manual Coarse and Manual Fine Delay Controls . . . . . . . . . . . . . . . . . 25
5.8.3 Tone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
5.8.4 Audio Monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
5.9 Pattern & Caption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
5.9.1 Edit Caption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
5.9.2 Select Caption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
5.9.3 Pattern Select. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
5.10 Memories. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
5.10.1 Recall Memory. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
5.10.2 Save Memory. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
5.10.3 Last Recalled . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
5.10.4 Save Memory Name . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
5.11 Logging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
5.11.1 Logging Misc . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
5.11.2 Logging Video Input 1 and Logging Video Input 2 . . . . . . . . . . . . . . . . 30
5.11.3 Logging Audio Input 1 to Logging Audio Input 4. . . . . . . . . . . . . . . . . . 31
5.11.4 Logging AES Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
5.11.5 Logging Video Output. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
5.11.6 Logging Fiber . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
5.11.7 Logging Audio Output. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
5.11.8 Log Field Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
5.12 RollTrack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
5.12.1 Disable All . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
5.12.2 RollTrack Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
5.12.3 RollTrack Source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
5.12.4 RollTrack Address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
5.12.5 RollTrack Command. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
5.12.6 RollTrack Sending . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
5.12.7 RollTrack Status. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
5.13 Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
5.13.1 Factory Defaults. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
5.13.2 Default Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
5.13.3 Restart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

IQOMU31 / IQOMB31 www.snellgroup.com Introduction
Issue 1 Rev 2 Page 5 ©2013 Snell Limited
1. Introduction
1.1 Description
The IQOMU31 and IQOMB31 provide eight-channel digital audio multiplexing for 3 Gbit/s
SDI, HD-SDI 1.5 Gbit/s or SD-SDI 270 Mbit/s signals. Including both SDI inputs, and a
combination of fiber optic input and output options, the IQOMU31 and IQOMB31 enable
increased connectivity distances for HD and 3 Gbit/s SDI signals. Audio processing features
include audio delay, gain, invert, and channel level routing, while video delay and a video
proc. amp are also included in the feature set.
The IQOMU31 and IQOMB31 are ideal as small-scale digital ingest modules where any
digital audio source signal can be catered for, even combinations of embedded and external
digital audio.
1.2 Block Diagram

IQOMU31 / IQOMB31 www.snellgroup.com Introduction
Issue 1 Rev 2 Page 6 ©2013 Snell Limited
1.3 Order Codes
1.3.1 IQOMU31
1.3.2 IQOMB31
Note: Modules with “A” order codes (for example, IQOMU311T-1A3) can be fitted into eitherA- or
B-style enclosures. Modules with “B” order codes (for example, IQOMU311T-1B3) can only
be fitted into B-style enclosures. See page 7.
IQOMU311(2)T-1A3
IQOMU311(2)T-1B3 3G/HD/SD-SDI 4-channel AES multiplexer with fiber-optic output. 2 SDI inputs, 2 SDI outputs, 1(2) optical output(s), 2 unbalanced AES
inputs.
IQOMU311(2)R-1A3
IQOMU311(2)R-1B3 3GHD/SD-SDI 4-channel AES multiplexer with fiber-optic input. 2 SDI inputs, 2 SDI outputs, 1(2) optical input(s), 2 unbalanced AES inputs.
IQOMU31TR-1A3
IQOMU31TR-1B3 3G/HD/SD-SDI 4-channel AES multiplexer with fiber-optic transceiver. 2 SDI inputs, 1 optical input, 2 SDI outputs, 1 optical output, 2
unbalanced AES inputs.
IQOMB311(2)T-1A3
IQOMB311(2)T-1B3 3G/HD/SD-SDI 8-channel AES multiplexer with fiber-optic output. 1 SDI input, 2 SDI outputs, 1(2) optical output(s), 4 balanced AES
inputs.
IQOMB311(2)R-1A3
IQOMB311(2)R-1B3 3G/HD/SD-SDI 8-channel AES multiplexer with fiber-optic input. 1 SDI input, 2 SDI outputs, 1(2) optical input(s), 4 balanced AES inputs.
IQOMB31TR-1A3
IQOMB31TR-1B3 3G/HD/SD-SDI 8-channel AES multiplexer with fiber-optic transceiver. 1 optical input, 1 SDI input, 2 SDI outputs, 1 optical output, 4 balanced
AES inputs.

IQOMU31 / IQOMB31 www.snellgroup.com Introduction
Issue 1 Rev 2 Page 7 ©2013 Snell Limited
1.4 Enclosures
The modules can be fitted into the enclosure types shown.
1.4.1 B-style Enclosure
Enclosure order codes: IQH3B-S-0, IQH3B-S-P
1.4.2 A-style Enclosures
Enclosure order code: IQH1A-S-P
Enclosure order codes: IQH3A-S-0, IQH3A-S-P
Enclosure order codes: IQH3A-E-0, IQH3A-E-P, IQH3A-0-0, IQH3A-0-P
Enclosure order code: IQH1A-S-P
Important: Although IQ modules are interchangeable between enclosures, their rear panels are
enclosure specific. An IQH3B enclosure accepts modules with either “A” or “B” order
codes. An IQH3A or IQH1A enclosure accepts modules with “A” order codes only. See
page 6.

IQOMU31 / IQOMB31 www.snellgroup.com Technical Specification
Issue 1 Rev 2 Page 8 ©2013 Snell Limited
2. Technical Specification
Inputs and Outputs
Signal Inputs * Optical I/O and control is determined by the type of SFP module fitted
SDI Inputs IQOMU31 x 2, IQOMB31: x 1
Input 1 Cable Length Up to 70m Belden 1694A @ 3 Gbit/s
Up to 160m Belden 1694A @ 1.5 Gbit/s
>350m Belden 1694A @ 270 Mbit/s
Input 2 Cable Length Up to 60m Belden 1694A @ 3 Gbit/s
Up to 100m Belden 1694A @ 1.5 Gbit/s
Up to 100m Belden 1694A @ 270 Mbit/s
Unbalanced digital audio 4 x AES/EBU, AC3. Dolby E (BNC)
Balanced digital audio 4 x AES/EBU, AC3. Dolby E (25-way D-type)
Optical Inputs* 3 Gbit/s HD-SDI, 1.485 Gbit/s HD-SDI or 270 Mbit/s SD-SDI (asynchronous operation
available at other frequencies)
* Optical I/O and control is determined by the type of SFP module fitted
Connector/Format LC
Standard SMPTE 297-2006
Inputs Up to 2
Signal Outputs
SDI Outputs x 2
Optical Outputs* 3 Gbit/s HD-SDI, 1.485 Gbit/s HD-SDI or 270 Mbit/s SD-SDI (asynchronous operation
available at other frequencies)
* Optical I/O and control is determined by the type of SFP module fitted
Connector/Format LC
Standard SMPTE 297-2006
Outputs Up to 2
Controls
Indicators
Power OK (green)
CPU running OK (green flashing)
FPGA running OK (green flashing)
Status OK (green)
Warning (yellow)
Error (red)
Input 1 OK (green)
Input 2 OK (green)
Controls
Video Controls
Input Standard 1125(1080)/50P (A & B), 1125(1080)/59P (A & B), 1125(1080)/29i, 1125(1080)/25i,
750(720)/59P, 750(720)/50P, 525(480)/29i,625(576)/25i
Default Video Output Type Pattern, Freeze, Black, TX Laser off
Default Video Output
Standard Last Known Good, 1125(1080)/50P (A & B), 1125(1080)/59P (A & B), 1125(1080)/29i, 1125(1080)/25i, 750(720)/59P, 750(720)/50P, 525(480)/29i, 625(576)/25i

IQOMU31 / IQOMB31 www.snellgroup.com Technical Specification
Issue 1 Rev 2 Page 9 ©2013 Snell Limited
Pattern Select 100% Color Bars, 75% Color Bars, SMPTE Bars, Tartan Bars, Black, Pluge, Ramp,
H Sweep, Pulse & Bar, Multi-burst
Input Select Serial 1, Serial 2, RX 1*, RX 2*
Manual Freeze On/Off
Freeze Field/Frame
Video Delay Frames 0–9 F
VANC Data Blank VANC
SD VANC Data Line blanking (six controls)
ProcAmp Enable On/Off
Black Level ±100 mV in 0.8 mV steps
Hue Adjust ±180° in steps of 1*
Master Video Gain +6 to -120 dB in 0.1 dB steps
Y-Gain +6 to -120 dB in 0.1 dB steps
Cb/Cr Gain +6 to -120 dB in 0.1 dB steps
Y/C Timing ±8 pixels in 2 pixel steps (SD)
±16 pixels in 2 pixel steps (HD/3G)
Picture Position ±8 pixels in 2 pixel steps (SD)
±16 pixels in 2 pixel steps (HD/3G)
Pattern On On/Off
Pattern Select 75% Color Bars, Black
Caption On On/Off
Edit Caption 19 characters available
TX Laser Disable On/Off
Audio Controls
Embedder Assignment
Group 1–4 Enable On/Off
Pair 1–8 Source L/
Non-PCM Dis-embed 1_1 to 8_2, AES 1–4, Tone, Silence
Pair 1–8 Source R Dis-embed 1_1 to 8_2, AES 1–4, Tone, Silence
Pair 1–8 Stereo Link channel pairs
Pair 1–8 Polarity L/R On/Off
Pair 1–8 Gain L/R +12 dB to -72 dB in 0.1 dB steps
Pair 1–8 Non-PCM On/Off
Processed Audio Delay Control
Course Manual Delay Up to 1.75s in 5ms steps
Fine Manual Delay +/- 0.25s in 0.5ms steps
Tone
Frequency L/R 100 Hz to 10 kHz in 100 Hz steps
Channel Ident On/Off
HANC Data Blank HANC (Removes all HANC data).
Note: audio removed when embedders disabled
Audio Monitoring
Silence Detect 0 to -80 dB in 1 dB steps
Signal Overload Detect 0 to -80 dB in 1 dB steps
Warning Timer 1 to 20 seconds in 1-second steps

IQOMU31 / IQOMB31 www.snellgroup.com Technical Specification
Issue 1 Rev 2 Page 10 ©2013 Snell Limited
Other Controls
User Memories 16 x Save, Recall, Rename
Memory Naming User-configurable naming of Memories 1–16
Information Window Video Input Status,Audio Input Status
EDH/CRC Reset Resets all EDH/CRC counts
RollTrack Index Up to 70 RollTrack destinations
Optical Logging* Tx Laser Bias High Warning
Tx Power Low Warning
Tx Power High Warning
Laser Wavelength
Input 1 (2) Rx Power High Warning
Input 1 (2) Rx Power Low Warning
Input 1 (2) Rx Power Measurement
RollTrack Sources Unused, Video Delay,Audio Delay, Input Present, Input Loss, Input Rate/Std, Output
Freeze, Output Unfreeze, Embedded Audio (Pairs 1–8) PCM, Embedded Audio
(Pairs 1–8) Non-PCM, Embedded Audio (Pairs 1–8) Loss, AES Audio (Pairs 1–4)
PCM, AES Audio (Pairs 1–4) Non-PCM, AES Audio (Pairs 1–4) Loss, Tx Laser Bias
High Warning*, Input 1 (2) Rx Power High Warning*, Input 1 (2) Rx Power Low
Warning*
Specifications
Electrical 3 Gbit/s SDI, SMPTE 424M
1.5 Gbit/s HD-SDI, SMPTE 292M
270 Mbit/s SDI, SMPTE 259M-C / DVB-ASI
Connector/Format BNC/75ohm panel jack on standard Snell connector panel
Return loss >-15 dB (270 Mbit/s, 1.5 Gbit/s)
>-10 dB (3 Gbit/s)
Output Jitter SD-SDI 0.2 UI (10 Hz) / 0.2 UI (1 KHz)
3G/HD-SDI 1.0 UI (10 Hz) / 0.2 UI (100 KHz)
Optical 1310 nm Tx
Wavelength 1310 nm
Spectral width (FWHM) >1.5 nm (typ)
Output power -2 dBm (±1 dBm)
Extinction ratio >7.5:1 (typ)
Transmission distance Up to 30 Km
Optical Rx
Input wavelength range Min. 1260 nm
Max. 1620 nm
Optical power input range > -3 dBm
< -18 dBm
Detector damage threshold +3.5 dBm
Video Standards
Video Standards 1125(1080)/50p (A & B), 1125(1080)/59p (A & B) 750(720)/50p, 750(720)/59p,
1125(1080)/25i, 1125(1080)/29i, 625(576)/25i, 525(480)/29i

IQOMU31 / IQOMB31 www.snellgroup.com Technical Specification
Issue 1 Rev 2 Page 11 ©2013 Snell Limited
Typical Video Delay SD: 70 us
HD: 38 us
3G-A: 19 us
3G-B: 40 us
Factory Default Resets all module settings to factory specified default values and clears memories
Default Settings Resets all module settings to factory specified defaults but does not clear memories
Restart Module Information Software restart of the module. Reports following module information: Software
version, Serial number, Build number, KOS version, Firmware version, PCB version
Embedded Audio Handling HD – 24-bit synchronous 48 kHz to SMPTE 299M
SD – 20-bit synchronous 48 kHz to SMPTE 272M-A
Embedded Audio Delay Minimum (PCM) 2 ms
Maximum (non-PCM)
SD: 67 us
HD: 28 us
3G-A: 15 us
3G-B: 25 us
Digital Audio Input (Balanced)
Connector/Format 25 W D
Sample Frequency 25–96 kHz (48 kHz for Reference)
Input Cable Length >500m of RG59 cable
Impendance 75 Ohms
Standard AES3id, SMPTE 272M-A-1994
SMPTE 299M
Output Sampling 48 kHz frame locked
Power Consumption
Module Power
Consumption 9.5 W (A Frames)
9.5 PR (B Frames)

IQOMU31 / IQOMB31 www.snellgroup.com Connections
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3. Connections
3.1 IQOMU31 Rear Panel View
3.1.1 Input Connections
3.1.2 Output Connections
3.2 IQOMB31 Rear Panel View
3.2.1 Input Connections
3.2.2 Output Connections
Note: Optical I/O and control is determined by the type of SFP module fitted.
Label Description Connector
FIBER Optical input. 1 x dual SFP.
AES IN AES audio inputs. 2 x unbalanced BNC.
SERIAL IN SDI inputs. 2 x BNC.
Label Description Connector
FIBER Optical output. 1 x dual SFP.
SERIAL OUT SDI outputs. 2 x BNC.
Note: The polarity of the balanced analog audio screw terminal
connectors is shown opposite.
Label Description Connector
FIBER Optical input. 1 x dual SFP.
AES AUDIO IN AES audio inputs. 4 x balanced screw terminal.
SERIAL IN SDI input. 1 x BNC.
Label Description Connector
FIBER Optical output. 1 x dual SFP.
SERIAL OUT SDI outputs. 2 x BNC.

IQOMU31 / IQOMB31 www.snellgroup.com Card Edge LEDs
Issue 1 Rev 2 Page 13 ©2013 Snell Limited
4. Card Edge LEDs
The LEDs on the edge of the module indicate its operating status.
LED Color State Indication
PWR + Green Illuminated A positive power supply is present.
PWR - Green Illuminated A negative power supply is present.
CPU_OK Green Flashing The CPU is running.
FPGA_OK Green Illuminated The unit is booting. The LED stays illuminated until
the SDI is enabled.
Green Flashing The FPGA is running.
Ser_IN 1
Ser_IN 2 Green Illuminated A valid input is present (SDI).
Opt_IN 1
Opt_IN 2 Green Illuminated A valid input is present (fiber).
ERROR Red Illuminated Board fault conditions. When the unit is booting,
the LED is illuminated until the SDI is enabled.
WARN Yellow Illuminated Board warning conditions. The LED is illuminated
if one or more of the SDI inputs is invalid.
OK Green Illuminated The module is operating correctly.

IQOMU31 / IQOMB31 www.snellgroup.com Operation Using the RollCall Control Panel
Issue 1 Rev 2 Page 14 ©2013 Snell Limited
5. Operation Using the RollCall Control Panel
The RollCall Control Panel enables you to control the IQ modules through various different
screens.
See the RollCall Control Panel Installation & Operator’s Manual for information on installation
and setup of the RollCall Control Panel.
5.1 Information Window
The Information Window at the top of each screen displays information about the audio and
video status of the module.
Select Input Status, Video Status, or Audio Input Status to display the corresponding
information.
5.1.1 Input Status
When Input Status is selected, the video input status is displayed.
5.1.2 Video Status
When Video Status is selected, the video input status is displayed.
Information Status Description Standard
IN1:
IN2: OK SDI input signal OK Shows the detected video input standard, for example,
1080/29i (blank if input is
lost).
FAIL SDI input signal failed
LOST No signal received
MISM Mismatch format detected
FIB1:
FIB2: OK Fiber input signal OK Shows the detected video input standard, for example,
1080/29i (blank if input is
lost).
FAIL Fiber input signal failed
LOST No signal received
MISM Mismatch format detected
Information Status Description Standard
IN1:
IN2:
FIB1:
FIB2:
OK Input signal OK Shows the detected video
input standard, for example,
1080/29i (blank if input is
lost).
FAIL Input signal failed
LOST No signal received
MISM Mismatch format detected

IQOMU31 / IQOMB31 www.snellgroup.com Operation Using the RollCall Control Panel
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5.1.3 Audio Input Status
When Audio Input Status is selected, the status of the embedded audio input is displayed.
OUT: OK Output signal OK Shows the selected video
output standard, for example,
1080/29i.
A$ symbol indicates that the
caption is enabled (blank if
disabled).
BLK Output signal is black
FRZ Output signal is frozen
PAT Output is a pattern
Information Status Description Standard
Information Status Description
Audio Embed
Input
Audio AES Input
P Channel is a PCM audio input.
? No audio input detected.
D Signal is data, such as non-PCM or DolbyDigital.
E Signal is Dolby E.
V V bit present

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5.2 Video
The Video screen enables you to specify the settings for the video inputs:
• Selection of SDI or fiber inputs
• Valid input standards
• Default output standard
• Ancillary blanking
• Freeze options
• Default output
5.2.1 Input Select
The Input Select control Enables the selection of either SDI Input 1, SDI Input 2, Fiber option
1, or Fiber option 2, where applicable.
5.2.2 Valid Input Standards
The Valid Input Standards check boxes specify the video input standards that the module will
accept. The module will automatically detect the standard of the received input and block any
signal that does not comply with these selected video formats.
By default, all input standards are selected

IQOMU31 / IQOMB31 www.snellgroup.com Operation Using the RollCall Control Panel
Issue 1 Rev 2 Page 17 ©2013 Snell Limited
5.2.3 Default Output
The Default Output control specifies the module’s output in the event of signal loss at the
input. Options are:
•Black: video out is a black screen
•Freeze: video output is frozen/paused
•Pattern: video output is a pre-determined test pattern or information screen
5.2.4 Default Output Standard
The Default Output Standard settings specify the output standard that the module will use if
it cannot determine the correct output standard to use.
By default, the Last Known Good setting is selected, which uses the last valid output
standard.
5.2.5 Blanking
The Blanking controls enable specific lines of VANC to be blanked.
•625 blank lines: Applied to 625 only, you can blank either or both of line 23 or line
336.
•525 blank lines: Applied to 525 only, you can blank any or all of lines 21, 22, 283, or
284.
•Blank VANC: Selecting this option blanks the following lines inclusively:
All VANC data from the end of the last active video line to the end of the RP168 switch
line is always blanked, irrespective of this control.
•Blank HANC: Selecting this option removes all horizontal ancillary data including
audio when the embedders are disabled and the audio is unprocessed.
5.2.6 Freeze
The Manual Freeze control freezes/pauses the output. Freeze type can be specified as either
Field or Frame.
525: 11–20, 274–282
625: 7–22, 320–335
720: 8–25
1080i: 8–20, 570–583
1080P: 8–41
Note: This function is disabled on a power cycle of the module.

IQOMU31 / IQOMB31 www.snellgroup.com Operation Using the RollCall Control Panel
Issue 1 Rev 2 Page 18 ©2013 Snell Limited
5.3 Fiber
The Fiber screen displays information about each of the fiber optic receivers (Rx) and
transmitters (Tx).
The controls are duplicated for the Fiber Optic Rx options 1 and 2.
5.3.1 Fiber Optic Rx 1 and Fiber Optic Rx 2
The following receiver parameters are displayed:
•Rx Power State: Displays the state of the received signal (options include OK,
WARN:HI, WARN:LO, FAIL:LO and FAIL:HI).
•Rx Power: Displays the signal level received at the input (in dBm).
5.3.2 Fiber Optic Tx 1 and Fiber Optic Tx 2
The following transmitter parameters are displayed:
•Tx Wavelength: Displays the wavelength of the transmitted output signal (either
1310 nm or 1550 nm).
•Laser Bias: Displays the bias level (in mA).
•Laser Bias State: Displays the bias state (options include OK, WARN:HI, WARN:LO,
FAIL:LO and FAIL:HI).
•Tx Power: Displays the signal level of the transmitted output signal (in dBm)
•Tx Power State: Displays the state of the transmitted output signal (options include
OK, WARN:HI, WARN:LO, FAIL:LO and FAIL:HI).
•Laser OFF: Enables the laser for the fiber optic output to be turned off manually.
•Laser OFF-On Input Loss: When selected, enables the laser for the fiber optic
output to be turned off automatically when the signal is lost at the associated fiber
optic receiver input. This option is enabled by default. If a default output (Firewall
feature) via the Fiber Optic Tx on input loss is required, this option must be un-ticked.

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Issue 1 Rev 2 Page 19 ©2013 Snell Limited
5.4 Procamp
The Procamp screen enables the processing amplifier settings to be adjusted including:
• Black Level
• Hue Adjust
• Master Video Gain
• Y Gain (Luma)
• Cb/Cr Gain (Chroma)
• Y/C Timing
• Picture position
5.4.1 Procamp Enable
The Procamp Enable check box enables the video processing amplifier functions. Clear the
check box to disable the Procamp functions.
5.4.2 Black Level
The Black Level control allows the channel’s black level to be adjusted over a range of
±100 mV in steps of 0.8 mV. The preset value is 0.
5.4.3 Hue Adjust
The Hue Adjust control allows the channel’s hue to be adjusted over a range of ±180° in
steps of 1°. The preset value is 0.

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Issue 1 Rev 2 Page 20 ©2013 Snell Limited
5.4.4 Master Video Gain
The Master Video Gain control allows the video gain to be adjusted over a range of ±6 dB in
steps of 0.1 dB. The preset value is 0.
5.4.5 Y Gain
The Y Gain control allows the luma to be adjusted over a range of ±6 dB in steps of 0.1 dB.
The preset is 0.
5.4.6 Cb/Cr Gain
The Cb/Cr Gain control allows the chrominance to be adjusted over a range of ±6 dB in steps
of 0.1 dB. The preset value is 0.
5.4.7 Y/C Timing
The Y/C Timing control allows the luma/chroma timing to be adjusted over a range of:
• ± 8 pixels in 2 pixel steps in SD
• ± 16 pixels in 2 pixel steps in HD/3G
The preset value is 0.
5.4.8 Picture Position
The Picture Position control allows the picture position to be adjusted over a range of:
• ± 8 pixels in 2 pixel steps SD
• ± 16 pixels in 2 pixel steps HD/3G
The preset value is 0.