Link electronics Two Field Closed Caption Decoder IEC-788 User manual

CLOSED CAPTION SERIES
LINK ELECTRONICS, INC.
TWO FIELD CLOSED CAPTION DECODER
PAL & NTSC, COMPOSITE PLUS Y/C
MODEL IEC-788
FEATURES
Field 1 & Field 2
Captions
Text
XDS
EIA-608 Extended Character Set
The IEC-788 is a high performance Closed Cap-
tion Decoder for the NTSC/PAL system. It is
capable of processing and displaying all standard
closedcaptionformattransmissions.Thisincludes
the codes specified by the FCC Report and Order
on General Docket No. 91-1 and EIA-608 recom-
mended practices for Captions, Text and XDS.
Nine standard data channels are supported by the
IEC-788: Caption channels 1 through 4 (CC1-
CC4), Text modes 1 through 4 (T1 through T4),
and Extended Data Services (XDS). The various
operating modes are selectable from four front
panel switches.
Packaged in LINK's compact 700 Series chassis,
theIEC-788isbothruggedand reliable. If desired,
it may be rack mounted along side two other 700
Series units of any mix.
PAL/NTSC
S-Video Input & Output
Baseband Video Input & Output
Differential Input
Rack Mountable (Optional Tray)
A switch on the rear panel selects PAL or NTSC
andaswitchonthefrontpanelselectsbetween115
or 230VAC.
Designed with the professional user in mind, the
IEC-788 processes composite baseband video or
S-Video. The composite video input is high imped-
ance looping and the S-Video is standard levels. 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.
In addition, the IEC-788 is backed by a standard
10-yearwarranty.Highperformance, flexibility, and
economy are equally represented in the IEC-788
Closed Caption Decoder.
LINKELECTRONICS, INC. 2137 Rust Avenue Cape Girardeau, MO 63703-7668
Phone [phone] FAX [phone]
MADE IN THE USA

IEC-788 REAR PANEL
PRT-700 RACK TRAY
MODEL IEC-788
SPECIFICATIONS
COMPOSITE INPUT:
Video Level: .............................................................1.0Vpp±6dB
Impedance: ............................................................>18KΩLooping
Connector: ..................................................................... BNC
Maximum DC on Inputs: ....................................................... ±6.0VDC
Common Mode Range: ........................................................... 5Vpp
CMRR@60Hz: ................................................................ >50dB
COMPOSITE OUTPUTS:
Number: .......................................................................Two
Connector: ..................................................................... BNC
Level:.....................................................................UnityGain
Character Video: .......................................................... 90IREUnits
Character Background: ..................................................... 10IREUnits
Impedance: .................................................................75Ω±1%
Frequency Response: .................................................. ±0.1dBat15MHz
....................................................................-0.5dBat17MHz
.................................................................. -1.0dBat18.5MHz
....................................................................-3.0dBat26MHz
DifferentialGain: ............................................................... 0.10%
DifferentialPhase:............................................................... 0.10°
Propagation Delay: ..........................................................19nS ±3ns
Hum and Noise: ....................................................... >60dB to 5 MHz
................................................................. >40dB above 5MHz
DC Offset: ............................................................ <2mV,Clamped
LineRateTilt: ................................................................. <0.1%
FieldRateTilt:................................................................. <0.1%
S-VIDEO INPUT:
YLevel: .................................................................. 1Vpp±6dB
CLevel:.............................................................. 0.6VppNominal
Impedance: .................................................................75Ω±1%
Connector: ........................................................... FourPinMiniDin
S-VIDEO OUTPUT:
Number: ................................... Two,one 4 Pin Mini Din & One BNC pair (Y & C)
YLevel: ................................................................. 1Vpp ±6dB
CLevel:.............................................................. 0.6VppNominal
ENVIRONMENTAL:
Temperature:........................................................0°to50°Cambient
Humidity: ..................................................... 10%/90%non-condensing
Power:......................................................................9.5VAR
AC Voltage: ................................................. 120/240 VAC±10%, 50/60Hz
MECHANICAL:
Height:.................................................................... 1.0inches
Width: .................................................................... 5.5inches
Depth: ................................................................... 9.25inches
Weight: ................................................................... 2lbs.,9oz.
LINKELECTRONICS, INC. 2137 Rust Avenue Cape Girardeau, MO 63703-7668
Phone [phone] FAX [phone]