Link electronic PDR-870 User Manual

CLOSED CAPTION SERIES

LINK ELECTRONICS, INC.

CHARACTER GENERATOR CAPTION DECODER

MODEL PDR-870

FEATURES

 Caption Decoder
 Data Recovery Decoder
 Character Generator Decoder
 TV Ratings Monitor
 NTSC or PAL(Stable Source)
 Composite or S-VHS Input
 High Impedenced Loop

 One RU Chassis
 S/N Ratio >60dB
 Dif Gain <0.1%
 Dif Phase <0.1°
 RS-232
 4 Caption Channels
 4 Text Channels

 XDS Channel
 Drop Shadow
 Extended Character Set
 Box Character Keying
 Internal or External Video
 Internal Video Generator
 Background Adjust

MADE IN THE USA

The PDR-870 is a high performance Closed Caption
Decoder for the NTSC and PAL systems. It is
capable of processing and displaying all standard
closed caption format transmissions--including the
EIA-608 Extended Character Set--in the manner of
a typical closed caption decoder. A stable input video
source is required.

Nine standard data channels are supported by the
PDR-870: Captions channels 1 thru 4 (CC1-CC4),
Text channels 1 thru 4 (T1-T4) and Extended Data
Services (XDS). The various decoding channels are
selectable by four front-panel toggle switches.
Additional front-panel toggle switches provide
NTSC/PAL video standard selection, drop-shadow or
box character keying, and internal/external video.
The internal video function allows the PDR-870 to
generate its own video as a medium for producing
open captions.

In addition, the PDR-870 can accept an RS-232 data
stream and directly produce open captions, serving
as a “character generator decoder.” Along with it’s
powerful decoder functions, the PDR-870 can serve
as an accurate “V-Chip” ratings monitor. All rating
information described by EIA-744 may be displayed
on-screen by the PDR-870. Both TV Parental
Guidelines and Motion Picture Association of
America (MPAA) ratings are supported.

The PDR-870 can recover incoming Line 21 data
and send it to a computer terminal via the RS-232
port. This data may be recovered with or without the
embedded closed caption control codes.

The PDR-870 can also perform a unique data
conversion to reveal the “non-printing” characters
that are part of the closed caption control codes.

Designed with the professional user in mind, the
PDR-870 processes baseband video in either
composite or S-Video formats. A rear-panel push­button switch is used to select the input/output
format. The selected video mode is displayed at the
front panel by a pair of green LEDs.

The composite video format uses a single high­impedance, looping input with two outputs. The S­Video format can use standard 4-pin mini-DIN
connectors or BNCs for its input/output. The video
performance is outstanding with differential phase
and gain errors limited to less than 0.1° and 0.1%
respectively.

The un-weighted signal-to-noise ratio approaches
70dB. AC-Coupled, complementary differential input
amplifiers assure high common mode noise rejection
while discrete phase-linear keyers provide clean
insertion of the decoded characters into the video
image.

Packaged in Link’s 1RU 800-Series chassis, the
PDR-870 is both rugged and reliable. All Link
Electronics products are covered by one of the best
warranties in the industry, 10-years including parts
and labor. High performance, flexibility, and
economy are equally represented in the PDR-870
CG, Data Recovery Decoder .

LINK ELECTRONICS, INC.  2137 Rust Avenue  Cape Girardeau, MO 63703-7668

Phone [phone]

 FAX [phone]

MODEL PDR-870 SPECIFICATIONS

COMPOSITE INPUT:

Video Level: ................................................. 1.0Vpp ±6dB(stable source)

Impedance: ............................................................ >18kΩ Looping

Connector: ..................................................................... BNC

Maximum DC on Inputs: ....................................................... ±6.0VDC

Common Mode Range: ........................................................... 5Vpp

CMRR @60Hz: ................................................................ >50dB

COMPOSITE OUTPUTS:

Number: ....................................................................... Two

Connector: ..................................................................... BNC

Level:..................................................................... Unity Gain

Character Video: ......................................... Adjustable, preset to 90 IRE Units

Character Background: .................................... Adjustable, preset to 10 IRE Units

Impedance: .................................................................75Ω ±1%

Frequency Response: .................................................. ±0.1dB at 15MHz

....................................................................-0.5dB at 17MHz

.................................................................. -1.0dB at 18.5MHz

....................................................................-3.0dB at 26MHz

Differential Gain: ............................................................... 0.10%

Differential Phase:............................................................... 0.10°

Propagation Delay: ............................................................ 19ns ±3

Hum and Noise: .....................................................>65dB, unweighted

DC Offset: ............................................................ <2mV, Clamped

Line Rate Tilt: ................................................................. <0.1%

Field Rate Tilt:................................................................. <0.1%

S-VIDEO INPUT:

Y Level:.................................................................. 1 Vpp ±6dB

C Level:.............................................................. 0.6 Vpp Nominal

Impedance: .................................................................75Ω ±1%

Connector: ....................................... Four Pin Mini Din or One BNC pair (Y & C)

S-VIDEO OUTPUT:

Number: ................................... Two, one 4 Pin Mini Din & One BNC pair (Y & C)

Y Level:................................................................. 1 Vpp ±6dB

C Level:.............................................................. 0.6 Vpp Nominal

DATA INPUT

NUMBER.................................................................... One (1)

STANDARD ................................................................ RS232C

CONNECTOR..................................................... 9-pin Subminiature D

PROTOCOL ...............................................Selectable, 1200 to 9600,n,8,1

ENVIRONMENTAL:

Temperature:........................................................ 0° to 50°C ambient

Humidity: ..................................................... 10%/90% non-condensing

Power:......................................................................9.5 VAR

AC Voltage: ................................................. 120/240 VAC±10%, 50/60Hz

MECHANICAL:

Height:................................................................... 1.75 inches

Width: .....................................................................19 inches

Depth: .................................................................... 7.5 inches

Weight: ................................................................... 2lbs., 9oz.

PROFESSIONAL SERIES-­stand-alone system products--by

LINK

LINK ELECTRONICS, INC.  2137 Rust Avenue  Cape Girardeau, MO 63703-7668

Phone [phone]

 FAX [phone]