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7707VAT-HD & 7707VAT-U-HD

HD-SDI with 4 Balanced or Unbalanced AES Audio Fiber Transmitter

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The 7707VAT-HD is a VistaLINK® capable, fiber optic transmitter for HDTV or SDTV video and AES audio signals. This single card module accepts one HD-SDI or SD-SDI video plus four AES audio and transmits them on a single fiber. The companion 7707VAR-HD receiver converts the HD-SDI and AES back to separate video and audio.

The 7707VAT-U-HD has unbalanced audio connections and is identical to the 7707VAT-HD in all other aspects.

The fiber output is available in an assortment of optical wavelengths, accommodating 1310/1550nm, CWDM and DWDM transmission schemes.

The 7707VAT-HD occupies one card slot and can be housed in the 1RU 7801FR frame which holds up to four single or two dual slot modules, the 3RU 7800FR frame which has a 15 slot capacity, the portable 3RU 350FR frame which has a 7 slot capacity, or a standalone enclosure which holds a single module.


  • Supports HDTV video formats @ 1.485Gb/s
  • Supports 525/625 line component 4:2:2 SDI @ 270Mb/s
  • Supports 32, 44.1, 48kHz AES audio inputs
  • Dolby E™ compatible
  • AES audio inputs can be synchronous or asynchronous to each other and/or to input video
  • Reclocked video output for additional signal distribution or monitoring
  • Signal transport over fiber uninterrupted by loss of video or AES audio input feeds
  • Comprehensive signal and card status monitoring via four-digit card-edge display, or remotely through SNMP and VistaLINK® capability
  • Local display of input coaxial cable length equalization
  • VistaLINK® capable for remote monitoring via SNMP (using VistaLINK® PRO) when installed in 7800FR frame with a 7800FC VistaLINK® Frame Controller
  • Automatic coaxial input equalization up to 130m at 1.485Gb/s (Belden 1694)
  • Fully Hot-swappable from front of frame
  • Supports single-mode and multi-mode fiber optic cable
  • Optical output wavelengths of 1310nm, 1550nm, and up to sixteen CWDM wavelengths (ITU-T G.694.2 compliant)
  • DWDM wavelengths (ITU-T G.694.1 compliant) also available


Serial Video Input

Standard SMPTE ST 292-1, SMPTE ST 259-C
Number of Inputs 1
Connector BNC per IEC 61169-8 Annex A
Equalization Automatic to 75m @ 1.485Gb/s and 300m @ 270Mb/s with Belden 1694 or equivalent cable
Return Loss > 15dB up to 1.485Gb/s

Serial Video Output

Number of Outputs 1 reclocked
Connector BNC per IEC 61169-8 Annex A
Signal Level 800mV nominal
DC Offset 0V ±0.5V
Rise/Fall Time < 270ps for HD-SDI, < 900ps for SDI
Overshoot < 10% of amplitude
Return Loss > 15dB up to 1.485Gb/s
Wideband Jitter < 0.2UI

AES Audio Input

Balanced AES3-2003
Unbalanced SMPTE ST 276
Number of Inputs 4
Standard 12 pin removable terminal strip
-U Version BNC per IEC 61169-8 Annex A
Sampling Rate 32, 44.1, 48kHz
Resolution Up to 24 bits
Minimum Input 200mV p-p
Maximum Input
Balanced 7V p-p
Unbalanced 1.2V p-p
Balanced < 600m @ 48kHz, with Belden 1800B, and 2V p-p source signal
Unbalanced < 1200m @ 48kHz, with Belden 8281, and 1V p-p source signal
Balanced 110Ω
Unbalanced 75Ω
Return Loss > 15dB, from 1MHz to 6MHz
Alignment Jitter < 10ns p-p, with conditions of minimum to maximum cable length

Optical Output

Number of Outputs 1
Connector Female SC/PC or FC/PC
Return Loss > 14dB
Wavelength See Ordering Information
1310nm FP (Standard) -7dBm ±1dBm
1550nm & CWDM DFB 0dBm ±1dBm
DWDM DFB +7dBm ±1dBm
Fiber Size 9µm core / 125µm overall


Voltage +12V DC
Power 11 Watts (Non-DWDM) or 13 Watts (DWDM)


Number of Slots 1


Laser Safety Class 1 laser product, complies with 24CFR 1040.10 and 1040.11, IEC 60825-1
EMI/RFI Complies with FCC Part 15, Class A, EU EMC Directive

Ordering Information

HD-SDI with 4 AES Audio Fiber Transmitter, VistaLINK®
7707VAT13-HD 1310nm FP Laser
7707VAT13-U-HD 1310nm FP Laser, Unbalanced AES
7707VAT15-HD 1550nm DFB Laser
7707VAT15-U-HD 1550nm DFB Laser, Unbalanced AES
CWDM (Ordering Information)
7707VATxx-HD CWDM DFB laser
7707VATxx-U-HD CWDM DFB laser, Unbalanced AES
DWDM (Ordering Information)
7707VATDxxx-HD DWDM DFB laser (Contact Factory for Wavelength Availability)
7707VATDxxx-U-HD DWDM DFB laser, Unbalanced AES (Contact Factory for Wavelength Availability)

Ordering Options

Notes Rear plate and fiber connector must be specified at time of order - eg: [model]+SC+3RU
Connector Suffix
+SCF SC/PC with flap cover
Rear Plate Suffix
+1RU 1RU rear plate for use with 7701FR Multiframe
+SA Standalone Enclosure Rear Plate
+3RU 3RU rear plate for use with 350FR, 7700FR-C or 7800FR Multiframes


350FR Portable Multiframe which holds 7 single slot modules
7700FR-C 3RU Multiframe which holds 15 single slot modules
7800FR 3RU Multiframe which holds 15 single slot modules
7701FR 1RU Multiframe which holds 3 single slot modules
S7701FR 7700 Series Standalone Enclosure