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    SX-48

Fairlight’s SX-48 Signal Exchange unit provides flexible I/O management of both analog and digital audio inputs and outputs and a packing density of up to 48 channels in a single 2U frame. Each standard SX-48 frame ships with a MADI  I/O card to provide a multiplexed bi-directional signal flow for each 48 channel unit. Digital signals can be referenced to external AES, World Clock or Video at any standard frame rate including tri-level references when used in a Hi Definition production environment. If used with AES inputs present the input can be used as a reference for the system. The front panel LED’s provide a clear indication as to the reference currently in use.

SX-48 is designed to accommodate all standard sampling frequencies from 44.1Khz to 96 KHz. LED indicators are also provided on the front panel to display the currently selected frequency. Flashing LEDs will also indicate that the sampling frequency has been pulled down to accommodate Drop Frame when required meaning a 48khz signal will be passed through at 47.092 KHz.

    TSCP

SX-48 introduces Fairlight’s “Total Studio Connection Protocol” (TSCP). When enabled through a simple PC management system via an Ethernet connection  up to 254 SX-48 systems can be managed from one central location effectively allowing routing and patching of a combination of over Twelve Thousand analog and digital audio channels. SX-48 makes the redundant overuse of Audio I/O connections a thing of the past.

Now audio I/O combinations  can be mounted where it is needed and routed via a single cable connection to and from its desired source and destination. LEDs are also provided to indicate connection to the TSCP host when enabled and also when communication is present.

Flexible
Central to the SX-48 design is the ability to flexibly configure units with any combination of up to six cards in the 2U frame.

These may be selected from the following options:

• 8 Channels AES SRC I/O (with Sample rate conversion)

• 8 Channels Analog Inputs

• 8 Channels Analog Outputs

• 8 Channels Analog Outputs with Relay protection for speakers

Six slots on the top of the unit are used to support any of the above 8 channel modules.

Signal Status
SX-48 front panel also provides 96 LEDs to indicate channel status for each input and output fitted to the frame.

LED States indicate the following*-

OFF                       No Signal Present
Dim Green           Signal Present
Bright Green        Signal between -20dBuand -8dBu
Yellow                   Signal between -8dBu and minus -2dBu
Red                       Signal between -2dBu and Zero

* User defined ranges may be accommodated in
  future releases.


 

    SX-48 at a Glance

Fairlight’s SX-48 Signal Exchange extends the CC-1 platform with flexible and cost-effective I/O. Up to FOUR SX-48 units can be connected to a single CC-1 card via MADI providing up to 192 channels of discrete I/O per engine. SX-48 is designed to accommodate all standard sampling frequencies from 44.1Khz to 192 KHz. Fairlight’s renowned I/O can be installed in eight channel modular blocks, allowing numerous combinations of up to six cards of analogue and/or digital I/O to be mixed together in each SX-48 unit or added later if required. SX-48 locks to external Sync at any frame rate and accepts HD Tri-level sync, Video Sync, Word-Clock or AES as references. Fairlight’s Total Studio Connectivity Protocol (TSCP) allows intelligent management of all SX-48 I/O resources on the TSCP network.


SX-48 Front Panel show the LEDS


SX-48 Showing the rear connectors

    Documentation

SX-48 Pin Out Diagram
SX-48 Quick Start Guide
 

    SX-48 Specifications

AES/EBU Inputs
• Minimum differential 200mV

• Input impedance 110 Ohms transformer isolated

• Channel status FPGA Technology systems are insensitive to channel status

AES/EBU Outputs
• Output level 4V

• Output impedance 110 Ohms transformer isolated

• Channel status, professional, normal audio, source locked

•  Sample frequency set to project sample rate, stereophonic, 24-bit word length

System Sample Rates
• 32, 44.056, 44.1, 48 and 96kHz (user selectable)

Run-up/Run-down Sample Rates
• 44.056, 44.144, 47.952, 48.048, 95.904, 96.096kHz

SRC Range (with optional SRC I/O module)
• Input: 0.33 to 3.0x system sample rate with range limits of 15kHz to 108kHz

Clock References
• Internal, AES reference, WCLK, any Digital Input, Video Reference or LTC Input.

• The system may be run at 96kHz locked to a 48kHz reference, or at 48kHz locked to a 96kHz reference.

Specifications subject to change without notice.