The 520DARS-W provides a compact method extracting word clock from your AES digital audio reference signals. The 520DARS-W features one auto-equalized input with 4 word clock outputs and 5 reclocked AES audio outputs.

The 520DARS-W can be used in conjunction with the 5601MSC Master Clock/SPG system.

The 520DARS-W is housed in the 3RU 500FR Exponent frame that will hold up to 16 modules.


  • Supports AES audio over 75Ω coax (SMPTE ST 276)
  • 4 word clock outputs (AES11-2003)
  • 5 reclocked AES outputs provides jitter reduction (SMPTE ST 276)
  • Automatic equalization provides extended cable length capabilities
  • High impedance or 75Ω termination on input (jumper selectable)
  • Card edge indicators for AES present, reclocker rate, and AES validity bit
  • Tally output of input error conditions
  • VistaLINK® capable for remote monitoring via SNMP (using VistaLINK® PRO) when installed in 500FR frame with 500FC VistaLINK® Frame Controller

Download Datasheet


AES Input
StandardSMPTE ST 276
Number of Inputs1
ConnectorBNC per IEC 61169-8 Annex A
Level1V p-p
Return Loss> 25dB, 100kHz to 6MHz
EqualizationAutomatic to 1500m with Belden 1694A (or equivalent) @ 48kHz AES signal
Sampling Frequency32kHz, 44.1kHz, 48kHz and 96kHz
AES Output
Number of Outputs5
TypeUnbalanced AES
ConnectorBNC per IEC 61169-8 Annex A
Level1V p-p
Return Loss> 25dB, 100kHz to 6MHz
Word Clock Output
Number of Outputs4
ConnectorBNC per IEC 61169-8 Annex A
Level5V p-p square wave (0-5V) ±0.5V
Voltage+12V DC
Power5 Watts
EMI/RFIComplies with FCC Part 15 Class A, EU EMC Directive
Number of Slots1

Ordering Information

520DARS-WUnbalanced AES Word Clock Extractor and Distribution Amplifier (1 x 5)
500FR3RU exponent Compact High Density Distribution Frame
S501FR500 Series Standalone Enclosure