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

Download Datasheet


Genlock Input
TypeNTSC or PAL Color Black 1V p-p
Composite Bi-level sync (525i or 625i) 300mV
Connector1 BNC per IEC 61169-8 Annex A
Termination75Ω (jumper selectable)
Analog Sync Outputs
Number of Outputs4
StandardSMPTE ST 274, ST 296, NTSC, PAL, 6Hz
TTL, HDSL (selectable as per above table)
NTSC/PAL signals are sync signals only (no burst)
Connectors4 BNC per IEC 61169-8 Annex A
Signal Level
HD Sync Outputs600mV nominal tri-level
SD Sync Outputs300mV nominal bi-level
6Hz OutputTTL
Power+12V DC
Voltage6 Watts
EMI/RFIComplies with FCC Part 15, Class A, EU EMC Directive.
Number of Slots1

Ordering Information

7751SRG-HDHD Tri-Level Sync Generator
Ordering Options
NotesRear plate must be specified at time of order - eg: [model]+3RU
Rear Plate Suffix
+SAStandalone Enclosure Rear Plate
+3RU3RU rear plate for use with 350FR, 7700FR-C, 7800FR or 7801FR Multiframes
350FRPortable Multiframe which holds 7 single slot modules
7700FR-C3RU Multiframe which holds 15 single slot modules
7800FR3RU Multiframe which holds 15 single slot modules
7801FR1RU Multiframe which holds 4 single slot modules
S7701FR7700 Series Standalone Enclosure
7800FCVistaLINK® Frame Controller
CP-2116E-HRemote Control Panel
CP-2232ERemote Control Panel