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HD Tri-Level Sync Generator

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The 7751SRG-HD generates various analog bi-level & tri-level sync signals for both HD and SD applications. The 7751SRG-HD provides an analog genlock input that allows you to synchronize the sync signals to your plant horizontal and vertical timing.

The 7751SRG-HD generates all analog sync signals defined by SMPTE ST 274 (1080i/p) and SMPTE ST 296 (720p) as well as those required for NTSC, PAL and slow PAL (625i/48) applications. Sync signals generated for NTSC, PAL and slow PAL applications are sync signals only and do not incorporate color burst signals.

The four independent sync outputs can be configured to output different sync signals. The common combinations of HDTV and SD analog sync outputs can be selected via card edge control.

In conjunction with the 7700ADA7 Analog Distribution Amplifier and the 7751TG2-HD HDTV Test Signal Generator, this module will fulfill all of your slave sync generation requirements.


  • NTSC or PAL color black gen lock or free-runs with no genlock reference
  • Phase adjustment of outputs with respect to gen lock input
  • Selectable frame rate divisor of 1 or 1/1.001
  • Wide variety of 1080i, 1035i, 1080p, 720p and NTSC/PAL/slow PAL sync output sync signals (excluding burst)
  • HSDL tri-level sync for 2K data transfers
  • Four separate analog sync signal outputs
  • 6Hz or 1Hz TTL pulse shows relationship between HD & SD Sync outputs
  • 8 position DIP switch selects combinations of sync signal available
  • Card edge LEDs indicate gen lock presence, module fault
  • VistaLINK® capable for remote monitoring, control and configuration capabilities via SNMP; using VistaLINK® PRO, CP-2116E or CP-2232E Control Panels. VistaLINK® is available when modules are used with the 3RU 7800FR frame and a 7800FC VistaLINK® Frame Controller module in slot 1 of the frame

Selectable Sync Output Options


1/1.001 Multiple Set Via DIP Switch Where Applicable
(See 7751SRG-HD manual for more switch settings)

11080i/601080p/24sF625i/486Hz Pulse
21080i/501080p/24sF625i/481Hz Pulse
31080p/301080p/24sF625i/486Hz Pulse
41080p/251080p/24sF625i/481Hz Pulse
7720p/601080p/24sF625i/486Hz Pulse
81035i/601080p/24sF625i/486Hz Pulse
101080i/60 V-Drive1080p/24sF625i/486Hz Pulse


Genlock Input

Type NTSC or PAL Color Black 1V p-p
Composite Bi-level sync (525i or 625i) 300mV
Connector 1 BNC per IEC 61169-8 Annex A
Termination 75Ω (jumper selectable)

Analog Sync Outputs

Number of Outputs 4
Standard SMPTE ST 274, ST 296, NTSC, PAL, 6Hz
TTL, HDSL (selectable as per above table)
NTSC/PAL signals are sync signals only (no burst)
Connectors 4 BNC per IEC 61169-8 Annex A
Signal Level
HD Sync Outputs 600mV nominal tri-level
SD Sync Outputs 300mV nominal bi-level
6Hz Output TTL


Power +12V DC
Voltage 6 Watts
EMI/RFI Complies with FCC Part 15, Class A, EU EMC Directive.


Number of Slots 1

Ordering Information

7751SRG-HD HD Tri-Level Sync Generator

Ordering Options

Notes Rear plate must be specified at time of order - eg: [model]+3RU
Rear Plate Suffix
+SA Standalone Enclosure Rear Plate
+3RU 3RU rear plate for use with 350FR, 7700FR-C, 7800FR or 7801FR 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
7801FR 1RU Multiframe which holds up to 4 single slot or 2 dual slot modules
S7701FR 7700 Series Standalone Enclosure


7800FC VistaLINK® Frame Controller
CP-2116E-H Remote Control Panel
CP-2232E Remote Control Panel