SR-112
TIMECODE DISTRIPALIZER

 

SR-112 Timecode Distripalyzer

A Timecode Reader, Distributor, Reshaper, Analyzer and Optional Generator

Used extensively in live applications, the SR line has become a standard for show control.

The SR-112 reshapes and distributes timecode through its 12 outputs, sending it over long lines with no signal degradation. It analyzes the source for quick diagnostic and generates or repairs timecode, locked to video if required.

Brainstorm SR Products for FOH
SR-112 Front Panel

Features

1 x 12 DISTRIBUTOR / RESHAPER

  • Designed to send clean time code over long cables
  • Eliminates level fluctuations
  • Buffered outputs; balanced or unbalanced

TIME CODE ANALYZER

  • Identifies time code format, reports errors (drop outs…)
  • Monitors video phase
  • Generates a comprehensive report via Ethernet

TIME CODE GENERATOR (option)

  • Generates new time code with or without video reference
  • Repairs faulty time code (jam sync)

The industry standard SR-112 is designed to distribute time code through its 12 buffered outputs while analyzing it. The reshaper sends clean time code, even over long cables, making it ideal for live environments.

The front panel includes a large 8 digit reader and an LCD display showing the units status and reporting errors as they are detected. All modern SMPTE and EBU SD/HD rates are supported.

With the option TCG, the SR-112 can also generate new time code or repair exisitng one.

SR-112 Rear Panel

Distributor / Reshaper

The SR-112 distributes and reshapes time code through a 1×12 distributor.

Reshaping:
The Brainstorm Time Code Distributors are more than audio DA’s: they reshape the signal before distributing it and by doing so, the SR-112 eliminates amplitude distortions and input level fluctuations.

Output Levels:
Output levels are adjustable individually via the Output Level menus. Since the signal is reshaped, output levels remain constant, regardless of the input level.

Buffered outputs:
The 12 time code outputs are balanced and buffered, avoiding the problems caused by multing a single source.

Time Code Analyzer

Eliminate frustrations and downtime by identifying problems quickly and accurately.

Time code format & Frame Rate:
The front panel displays separately the format (24, 25 or 30), the drop frame status and the frame rate of the incoming time code. For example: 30 drop frame, at a rate of 29.97. No more guessing! In addition, the frame rate counter can show potential problems such as jitter or wow and flutter.

Time code errors:
Time code errors such as repeated frames, drop outs etc. are detected and reported on the front panel along with the faulty addresses. A buzzer sounds whenever the analyzer detects an error (can be deactivated when required).

Video Phase:
In post production, it is essential that time code be synchronous with video (i.e. the video frame must be perfectly aligned with the corresponding time code word). The SR-112 accurately monitors the phase between time code and video and reports even slow drifts.

Time code report:
A comprehensive report that includes format, video phase and time code errors can be sent to a computer via the rear panel Ethernet port.

Time Code Generator (TCG) – Optional Firmware

The optional TCG module has 2 main functions: Repairing time code and generating new time code.
 
Repairing Time Code:
In REPAIR mode, the SR-112 fixes drop outs by regenerating the incoming code (jam-sync). It can also correct video phase when it is missaligned.
 
Generating new Time Code:
In GENERATE mode, the SR-112 generates new time code. Start time, format and frame rate can be set. The generator can be genlocked to external video.

SP/SR112 – Serial Port for the SR-112

This hardware option is very easy to install. It allows for the TCG Time Code Generator to be remote controlled with serial commands from a computer. The SP/SR112 includes a serial port adapter and the complete protocol documentation.

SP/SR112 Serial Port Hardware Option

SR-112 Specifications

TC Distributor: 1×12
TC Input Connector: XLR Female
TC Output Connectors: 1 x DB-25 F (8 outputs – Tascam/Avid analog pin configuration), 2 x XLR M, 2 x 1/4” TRS
Input Signal: SMPTE/EBU Longitudinal Time Code
Impedance: 20KΩ bal.; 10KΩ unbal.
Level: -30dbU min; +20dbU Max
Output Signal: Waveform: switchable rise time: 1us (square); 25us (SMPTE); 50us (EBU)
Impedance: 600Ω bal.; 300Ω unbal.
Level: adjustable: full off to +8dbU bal.; to + 2dbU unbal.
Amplitude distortion: less than 2%
Status LEDs: Reshape • Generate (TCG option) • Video In • Repair (TCG option) • TC In • Ethernet
Warning LEDs: Input Error (red) • Video Drift (red) • Video Phase (yellow) • Video Termination Off (yellow)
Time Code Reader: The 8 digit LED Display indicates hours, minutes, seconds and frames.
The display also flashes error descriptions when detected.
LCD Display:

In addition to being used for SET UP, the 32 carachter LCD display indicates the following:

  • Format and rate of the incoming time code
  • Format and rate of the video reference
  • User Bits
  • Video Phase
  • List of errors
Connectors: Time Code in: XLR Female (x 1)
Video Ref: BNC (x 1)
Time Code outputs:

  • DB25 (1x) – Tascam/Avid analog pin configuration: outputs 1-8
  • XLR Male (2x): outputs 9-10
  • 1/4” jacks (2x) – TRS: outputs 11-12

Ethernet: RJ45 jack (x 1)
Power: 4 pin circular (x 2)

Power: 12VDC @ 3A
Redundancy: two separate supplies can be connected to the 2 separate power inputs. If one supply fails, the other takes over and an error is reported. The faulty supply can be swapped without having to power down.
Dimensions: 19” x 8.125” x 1.75” (48.26 cm x 20.64 cm x 4.45cm)

SR-112 Resources

FAQs

Where does the word Distripalyzer come from?

The original SR-15 had 3 main functions: It was a DISTributor, a STRIPper and an anALYZER. The SR-112 no longer strips pilot tone as this feature is no longer in demand. But it is still a DISTRIButor and an anALYZER. It also has several new features (see next FAQ).

What are some of the new features of the SR-112 compared with the older SR-15?
  • 12 outputs instead of 5
  • Accepts HD Video Sync as well as SD Video Sync.
  • Large reader display.
  • Ethernet
  • Dual redundant power supplies
  • Optional Time Code Generator
  • Card slot for future I/O’s.
Is the SR-112 distributor the same as an audio DA?

No. An audio DA is designed to distribute an audio signal. The SR-112 on the other hand not only distributes time code, but also reshapes it, eliminating distortions and amplitude fluctuations. Also, an audio DA may no be designed to handle a 2.4KHz square wave and may induce distortions.

Can the SR-112 generate time code?

Yes. With the optional TCG software, the SR-112 can generate new time code, locked to video or not. It also includes a repair mode that enables you to Jam-sync or regenerate time code, repairing errors such as drop outs, jitter or video phase alignment.

When updating firmware on my SR-112, which file should I use: ‘Complete’ or ‘Software’?

Whenever possible, you should use the ‘software’ only because, if a crash was to occur during the ‘programming’ phase, due to a power failure for example, you can always revert to the ‘Loader’ mode (see 13.3 in the User Manual). But, when making a major software update (primary rev number change), a ‘complete’ update is required. For example, updating from 2.00 to 2.01 can be ‘software’ only. But updating from 1.xx to 2.xx must be “complete”. Be certain power is not interrupted during the ‘programming’ phase of a ‘complete’ update.

How do I connect the time code outputs 1-8?

Outputs 1-8 are on a DB25 connector with the same pin configuration as Tascam/Avid. Standard DB25 to XLR breakout cables are readily available and can be ordered from Brainstorm Electronics.