Snell IQSDA31 Operator's manual

snellgroup.com
User Instruction Manual
IQSDA31
Dual Channel 3G/HD/SD-SDI Equalizing Distribution Amplifier
IQSDA33
3G/HD/SD-SDI Fan-out Distribution Amplifier

IQSDA31/IQSDA33 www.snellgroup.com Information and Notices
Issue 2 Rev 4 Page 2 ©2015 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.
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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.
Contact Details
Customer Support
For details of our Regional Customer Support Offices please visit the Snell website and
navigate to Support/Customer Support.
www.snellgroup.com/support/customer-support
Customers with a support contract should call their personalized number, which can be found
in their contract, and be ready to provide their contract number and details.

IQSDA31/IQSDA33 www.snellgroup.com Contents
Issue 2 Rev 4 Page 3 ©2015 Snell Limited
Contents
Information and Notices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1. Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.1 Module Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.1.1 IQSDA31 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.1.2 IQSDA33 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.2 Order Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.2.1 IQSDA31 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.2.2 IQSDA33 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.3 Rear Panel Views . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.3.1 IQSDA31 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.3.2 IQSDA33 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.4 Enclosures. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.4.1 B-style Enclosure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.4.2 A-style Enclosures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.5 Feature Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
1.5.1 IQSDA31 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
1.5.2 IQSDA33 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2. Technical Specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.1 IQSDA31. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.2 IQSDA33. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3. Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3.1 IQSDA31. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
3.1.1 Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
3.1.2 Outputs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
3.2 IQSDA33. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.2.1 Input. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.2.2 Outputs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
4. Card Edge LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

IQSDA31/IQSDA33 www.snellgroup.com Introduction
Issue 2 Rev 4 Page 4 ©2015 Snell Limited
1. Introduction
1.1 Module Description
1.1.1 IQSDA31
The IQSDA31 provides dual inputs with 3 outputs per input for distribution of HD-SDI 3 Gbit/s
& 1.5 Gbit/s or 270 Mbit/s SD-SDI signals in a single width package. Its class leading input
equalization performance and non re-clocking distribution of wide-band signals makes it ideal
for all distribution applications.
1.1.2 IQSDA33
The IQSDA33 is a fan-out distribution amplifier for HD-SDI 3 Gbit/s, 1.5 Gbit/s or 270 Mbit/s
SD-SDI signals providing 7 equalized outputs of the input in a single width package. Its class
leading HD input equalization performance and non re-clocking distribution of wide-band
signals makes it ideal for fan out distribution applications.

IQSDA31/IQSDA33 www.snellgroup.com Introduction
Issue 2 Rev 4 Page 5 ©2015 Snell Limited
1.2 Order Codes
The following product order codes are covered by this manual.
1.2.1 IQSDA31
1.2.2 IQSDA33
1.3 Rear Panel Views
The following rear panel types are available.
1.3.1 IQSDA31
IQSDA3147-1A(B)3
IQSDA3161-1A(B)3
Note:
Modules with “A” order codes (for example, IQSDA3147-1A3) can be fitted into either A- or
B-style enclosures. Modules with “B” order codes (for example, IQSDA3147-1B3) can only
be fitted into B-style enclosures. See page 7.
IQSDA3147-1A3
IQSDA3147-1B3 Dual Channel 3G/HD/SD-SDI Equalizing Distribution Amplifier. 2 inputs, 3 outputs per input.
IQSDA3161-1A3
IQSDA3161-1B3 Dual Channel 3G/HD/SD-SDI Equalizing Distribution Amplifier with relay input bypass. 2 inputs, 2 outputs per input.
IQSDA3347-1A3
IQSDA3347-1B3 3G/HD/SD-SDI Fan-out Distribution Amplifier. 1 input, 7 outputs.
IQSDA3361-1A3
IQSDA3361-1B3 3G/HD/SD-SDI Fan-out Distribution Amplifier. 1 input, 6 outputs, relay bypass.
Note:
The input signal will bypass the module and be routed to the respective output in the event
of module removal or power failure.

IQSDA31/IQSDA33 www.snellgroup.com Introduction
Issue 2 Rev 4 Page 6 ©2015 Snell Limited
1.3.2 IQSDA33
IQSDA3347-1A(B)3
IQSDA3361-1A(B)3
Note:
The input signal will bypass the module and be routed to the respective output in the event
of module removal or power failure.

IQSDA31/IQSDA33 www.snellgroup.com Introduction
Issue 2 Rev 4 Page 7 ©2015 Snell Limited
1.4 Enclosures
The module 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 5.

IQSDA31/IQSDA33 www.snellgroup.com Introduction
Issue 2 Rev 4 Page 8 ©2015 Snell Limited
1.5 Feature Summary
The IQSDA31 and IQSDA33 provide the following features.
1.5.1 IQSDA31
• Dual channel 3G-HD, HD-SDI, SD-SDI and wide-band distribution amplifier
• Equalizes up to 80m at 3Gbit/s, 100 m at 1.5 Gbit/s and up to 250 m at 270 Mbit/s of
Belden 1694A cable
• Standards supported:
• 3G-HD to SMPTE424M
• HD-SDI to SMPTE292M
• SD-SDI to SMPTE259M-C
• Relay Bypass option available
• Extremely compact – up to 32 channels in 3RU – for use where space is at a premium
1.5.2 IQSDA33
• 3G-HD, HD-SDI, SD-SDI and wide-band distribution amplifier
• Equalizes up to 80m at 3 Gbit/s, 100m at 1.5 Gbit/s and up to 250m at 270 Mbit/s of
Belden 1694A cable
• Standards supported:
• 3G-HD to SMPTE424M
• HD-SDI to SMPTE292M
• SD-SDI to SMPTE259M-C
• Extremely compact – up to 7 outputs of the input in a single width allowing 16 modules
in 3RU or 4 in 1RU – for use where space is at a premium

IQSDA31/IQSDA33 www.snellgroup.com Technical Specification
Issue 2 Rev 4 Page 9 ©2015 Snell Limited
2. Technical Specification
2.1 IQSDA31
Inputs and Outputs
Signal Inputs
SDI Inputs 2 x
Input Cable Length Up to 250 m Belden 1694A @ 270 Mbit/s
Up to 100 m Belden 1694A @ 1.5 Gbit/s
Recommended for local fan out distribution only at 3 Gbit/s
Signal Outputs
SDI Outputs x 3 per input
Controls
Indicators
Power OK (Green)
Card Edge Controls
Slew Rate Switch SD/HD
Specifications
Electrical 1.5 Gbit/s HD-SDI, SMPTE 292M
270 Mbit/s SDI, SMPTE 259M-C
Connector / Format BNC/ 75 Ohm panel jack on standard Snell connector panel
Return Loss >-15 dB (270 Mbit/s, 1.5 Gbit/s)
>-10 dB (3 Gbit/s)
Power Consumption
Module Power Consumption 3 W max (A Frames)
4 W max with relay rear (A Frames)
3PR(BFrames)
3 PR max with relay rear (B Frames)

IQSDA31/IQSDA33 www.snellgroup.com Technical Specification
Issue 2 Rev 4 Page 10 ©2015 Snell Limited
2.2 IQSDA33
Inputs and Outputs
Signal Inputs
SDI Inputs 1 x
Input Cable Length Up to 250 m Belden 1694A @ 270 Mbit/s
Up to 100 m Belden 1694A @ 1.5 Gbit/s
Recommended for local fan out distribution only at 3 Gbit/s
Signal Outputs
SDI Outputs x 7 (6 on the Relay Bypass version)
Controls
Indicators
Power OK (Green)
Card Edge Controls
Slew Rate Switch SD/HD
Specifications
Electrical 1.5 Gbit/s HD-SDI, SMPTE 292M
270 Mbit/s SDI, SMPTE 259M-C / DVB-ASI
Connector / Format BNC/ 75 Ohm panel jack on standard Snell connector panel
Return Loss >-15 dB (270 Mbit/s, 1.5 Gbit/s)
>-10 dB (3 Gbit/s)
Power Consumption
Module Power Consumption 3 W max (A Frames)
3PR(BFrames)

IQSDA31/IQSDA33 www.snellgroup.com Connections
Issue 2 Rev 4 Page 11 ©2015 Snell Limited
3. Connections
This section describes the physical input and output connections provided by the IQSDA31
and IQSDA33.
3.1 IQSDA31
3.1.1 Inputs
Serial digital input to the unit is made via 2 BNC connectors, which terminate in 75 Ohms.
IQSDA3147-1A(B)3
IQSDA3161-1A(B)3
3.1.2 Outputs
Serial digital output from the unit is made via 6 BNC connectors, 3 per input (4 on Relay
Bypass version, 2 per input), which terminate in 75 Ohms. Outputs 1 and 3 are DVB-ASI
compatible (Serial Out 1, output 1 and Serial Out 2, output 2 on Relay Bypass Version).
IQSDA3147-1A(B)3
IQSDA3161-1A(B)3

IQSDA31/IQSDA33 www.snellgroup.com Connections
Issue 2 Rev 4 Page 12 ©2015 Snell Limited
3.2 IQSDA33
3.2.1 Input
Serial digital input to the unit is made via a single BNC connector, which terminates in
75 Ohms.
IQSDA3347-1A(B)3
IQSDA3361-1A(B)3
3.2.2 Outputs
Serial digital output from the unit is made via 7 BNC connectors (6 on Relay Bypass version),
which terminate in 75 Ohms. Outputs 1, 3, 5, and 7 are DVBASI compatible (1, 4, and 6 on
Relay Bypass version).
IQSDA3347-1A(B)3
IQSDA3361-1A(B)3

IQSDA31/IQSDA33 www.snellgroup.com Card Edge LEDs
Issue 2 Rev 4 Page 13 ©2015 Snell Limited
4. Card Edge LEDs
The LEDs on the edge of the module indicate its operating status.
Note:
Channel 2 slew rate switch on IQSDA31 only.
LED Color Description
Power OK Green This indicator is illuminated when a positive power supply
is present.
DIP Switches N/A The DIP switches on the card control the slew rate.
Numbered from left to right, their functions are as follows:
•Switch 1: Channel 1 slew rate. This switch should
be positioned UP for SD sources (slower slew
rate) and DOWN for HD sources (faster slew rate).
•Switch 2: Channel 2 slew rate (IQSDA31 only).
This switch should be positioned UP for SD
sources (slower slew rate) and DOWN for HD
sources (faster slew rate).
•Switch 3: Not used.
•Switch 4: Not used.