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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