Link electronics Two Field Closed Caption Decoder IEC-786 Specification Sheet

LINK ELECTRONICS, INC.

TWO FIELD CLOSED CAPTION DECODER

MODEL IEC-786

MADE IN THE USA

CLOSED CAPTION SERIES

FEATURES

 Field 1 & Field 2
 Captions
 Text
 XDS

The IEC-786 is a high performance Closed Cap­tion Decoder for the NTSC system. It is capable of
processing and displaying all standard line 21
closed caption format transmissions. This includes
the codes specified by the FCC Report and Order
on General Docket No. 91-1 and EIA-608 recom­mended practices for Captions, Text and XDS in
field 2.

Nine standard data channels are supported by the
IEC-786: Caption channels 1 through 4 (CC1­CC4), Text modes 1 through 4 (T1 through T4),
and Extended Data Services (XDS). The various
operating modes are selectable from four front
panel switches. Designed with the professional
user in mind, the IEC-786 processes composite
baseband video.

 Baseband Video Input
 Baseband Video Output
 Differential Input
 Rack Mountable (Optional Tray)

It features a high impedance looping input and two
composite video outputs. A complementary differ­ential input amplifier assures high common mode
rejection while its phase-linear keyer cleanly
inserts decoded characters into the video image.
Differential gain and phase are well within 0.1%
and 0.1° respectively.

Packaged in LINK's compact 700 Series chassis,
the IEC-786 is both rugged and reliable. If desired,
it may be rack mounted along side two other 700
Series units of any mix.

In addition, the IEC-786 is backed by a standard
10-year warranty. High performance, flexibility, and
economy are equally represented in the IEC-786
Closed Caption Decoder.

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

Phone [phone]

 FAX [phone]

MODEL IEC-786 CLOSED CAPTION DECODER

SPECIFICATIONS

INPUT:

Video Level: .............................................................1.0Vpp ±6dB

Impedance: ............................................................>20KΩ Looping

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

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

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

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

OUTPUTS:

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

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

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

Character Video: .......................................................... 90 IRE Units

Character Background: ..................................................... 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: .............................................................. 16nS

Hum and Noise: ........................................................>55dB to 5MHz

................................................................. >40dB above 5MHz

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

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

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

ENVIRONMENTAL:

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

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

Power:........................................................................9VAR

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

MECHANICAL:

Height:.................................................................... 1.0 inches

Width: .................................................................... 5.5 inches

Depth: ................................................................... 9.25 inches

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

IEC-786 REAR PANEL

PRT-700 RACK TRAY

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

Phone [phone]

 FAX [phone]

IEC-786/101802