Grass valley 8985FS DATASHEET

8985FS SD/HD Video Frame Synchronizer 47

Key Features

•HD/SD frame synchronizer

•Operates in frame sync and delay modes with user-programmable delay, plus a framing delay from 300 pixels up to eight frames minus 5 lines in pixel-sized steps

•Supports genlock submodule to manage reference timing (required for frame sync operation)

•Genlock submodule supports Tri-level sync and NTSC/PAL color black and loop-through

•Split screen mode for in/out comparison

•Accepts an optional fiber transmitter, fiber receiver, or fiber transceiver SFP device providing optical HD-SDI and SD-SDI I/O

The 8985FS is a compact, high-performance, fiber-ready SD/HD frame synchronizer module with low hysteresis, a dual-redundant reference capability, and a perfect-picture mode. This module is therefore suited to production and playout applications where high reliability is required.

The 8900GEN-SM submodule provides a dual-redundant reference to ensure continuous glitch-free operation even when the incoming reference signal fails. Perfect-picture mode prevents damaged frames and picture stutter from appearing when the incoming feed fails.

Fiber-ready technology allows this module to accept one of three types of SFP fiber optic submodules. One of these can be installed in the fiber optic rear cage connector to provide two fiber inputs (Dual Receiver), two fiber outputs (Dual Transmitter), or one fiber input/ one fiber output (Transceiver).

The 8900NET (Net Card) module is required for Web browser or Newton control panel configuration. In addition, NetConfig

and NetCentral can be used for remote configuration and SNMP signal health monitoring.

Refer to the rear module pinout and block diagram on the next page.

Applications

•With asynchronous sources where SD-SDI and HD-SDI line or frame synchronization is required

•With synchronous sources to compensate for cable or processing delays

•When a video signal needs timing adjustment to match other sources

•With live signals where minimum delay is important

Specifications

Supported Frame Types

GeckoFlex with 8900NET (Net Card) for configuration

Power Rating

8.0 Watts – single slot

Inputs

SD/HD-SDI: One electrical or optional fiber optic

•Input equalization: up to 125m

•Auto-sensing:Yes

Optical: Single-mode (optional)

Formats supported: 1080i @ 59.94, 50; 1080p @ 24, 1080sf @ 24; 720p @ 59.94, 50; 480i @ 59.94; 576i @ 50

Outputs

SD/HD-SDI: Four electrical and up to two additional optional fiber optic

•Return loss: >15 dB, 5 to 270 MHz;

>15 dB typical, to 1.5 GHz

•Signal level: SDI 800 mVp-p ±10%

•Rise/fall time (20–80%): 140 ps typical for HD,

500 ps typical for SD

•Output jitter in frame sync mode, low jitter applied:

<0.2 UI HD >100 kHz

<1.0 UI HD 10 Hz >100 kHz <0.2 UI SD >1 kHz

Optical: Single-mode (optional)

Electrical Length (delay)

Fixed delay mode: Nominal: 1 frame (±1 pixel) User-adjustable range: 1 frame minus 5 lines to 2 frames minus 5 lines

Synchronizing mode (asynchronous input):

Minimum: 1 frame minus 5 lines Maximum: 2 frames minus 5 lines

Fixed delay mode = in minimum delay mode:

Nominal: 300 pixels (±1 pixel)

User-adjustable range: 300 pixels to 1 frame minus 5 lines

Synchronizing mode = in minimum delay mode (synchronous input): Nominal: 300 pixels (±1 pixel) User-adjustable range: 300 pixels to 1 frame minus 5 lines

Additional adjustable delay: 0 to 6 additional frames

Synchronizing

Genlock (reference signal):

The 8900GEN-SM submodule is required for genlocking GeckoFlex modules with frame sync.

The 8900GEN-SM submodule attaches to the front module and provides genlock reference support to:

•Host synchronizer module

•Host synchronizer module and one of two frame reference buses

•Other GeckoFlex modules via the frame reference bus

A second submodule attached to another GeckoFlex module can provide redundant frame reference or a different signal format. (NOTE: at least one module per frame must have a genlock submodule installed to provide reference bus support).

Reference signal to timing pulse edge: Adjustable from 0 to 1 frame in 1 SD pixel steps.

Control And Monitoring

SNMP: Yes

Web page configuration: Yes Local configuration: No Newton support: Yes NetConfig support: Yes NetCentral support: Yes

Ordering Information

This module can be mounted in a GeckoFlex frame but not in other 8900 series frames, including Gecko-A or Gecko-V frames. As this module has no card-edge controls, an 8900NET (Net Card) Network Interface module is required to configure the module.

8985FS

SD/HD frame synchronizer (front and rear module set)

8900GEN-SM

Genlock submodule. This submodule mounts to the front module to provide reference input for the module and frame reference bus. This is required for frame synchronizing operation

SFP-13103G-M1TRX

Fiber transceiver. Low-power 1310 nm single-mode optical transceiver submodule (one fiber input/one fiber output)

SFP-13103G-M1DTX

Dual fiber transmitter. Dual low-power 1310 nm singlemode optical transmitter submodule

SFP-13103G-M1DRX

Dual fiber receiver. Dual low-power 1310 nm singlemode optical receiver submodule

For detailed specifications, installation, and setup instructions see: www.grassvalley.com/docs/modular

48 8985FS SD/HD Video Frame Synchronizer

SD/HD

Fiber In 1

SD/HD

Fiber In 1

SD/HD

Fiber In 2

SD/HD

SDI In

Ref In

Loop

8900GFR-R

Genlock	J1	J2	Auto Track
In			Delay
Genlock	J3	J4	Auto Track
Loop Out			Delay
	J5	J6
Out			Out
	J7	J8
Out			Out

	J9	Fiber I/O
In		Connector
		FIBER

Fiber RX	SFP Fiber Optic Transceiver Option			Fiber TX
Fiber RX	SFP Fiber Optic	Only one fiber	SFP Fiber Optic	Fiber TX
Fiber RX	Dual Receiver	option can be	Dual Transmitter
	Option	installed	Option	Fiber TX
	Equalizer		Synchronizer
8900GEN-SM		Genlock
Submodule		adjustment
Option

Frame Bus 1 Frame Bus 2

SD/HD

Fiber Out 2

SD/HD

Fiber Out 1

SD/HD

Fiber Out 2

4X SD/HD-SDI Out