Link electronics VBI Caption/Data Processor Encoder/Decoder... User manual

CLOSED CAPTION SERIES
LINK ELECTRONICS, INC.
VBI CAPTION/DATA PROCESSOR
ENCODER/DECODER
Model PDR-885
FEATURES
Encode, Data Recovery
Field 1 or Field 2
Caption & Text
Decoder Output
Optional Modem
ThePDR-885isaClosedCaptionEncoderwithan
integralDecoderforinsertingcaptionandtextdata
on Line 21 of the NTSC signal. However, this
important function is only the beginning of the
PDR-885 capabilities.
Caption and Text data may be inserted in either
field of the Vertical Blanking Interval. In addition,
data on the incoming video signal may be
recovered from either field of the VBI. This
incoming data may be displayed as Open
Captions, using the built-in Closed Caption
Decoder, and captured by a computer utilizing the
PDR-885's serial data port. Each of these
importantfunctions,Encoding,Decoding,andData
Recovery may be done simultaneously.
The Closed Caption Decoder's functions may be
controlled from the front panel while the Encoder
andDataRecoveryfunctionsarecontrolledviathe
serial data port. The video data path approaches
perfection, with differential phase and gain errors
less than 0.1° and 0.1% respectively. Video
bandwidth is >26MHz while Signal to Noise
exceeds60dB.Inputsandoutputsareprovidedfor
composite NTSC video as well as Component (R-
Y/B-Y/Y) and S-Video.
Y,R-Y,B-Y Input & Output
Two Composite Outputs
S/VHS Input & Output
RS-232C Controlled, RS-422 Option
V-Chip Compatible
If composite video is used, a high performance
relay provides power-off by-pass of the program
video. For remote captioning applications, a
second serial port is available as a modem input.
Both serial ports may be configured for RS-232 or
RS-422 I/O, with optional plug-in PCB. An internal
jumperallowsbaudrateselectionsof1200to9600
bps. A modem and computer may be connected
simultaneously to process local and remote
caption data, only one active at a time.
Front panel LED's show the unit status and the
presence of data on the incoming video. A pair of
front panel push-buttons allow the user to run an
encoded test message or to place the unit in by-
pass mode.
ThePDR-885isready for V-Chip technology. This
technology will allow parents to block violent or
otherwise offensive television programming from
theirTVsets.LINKElectronicsisincorporatingthis
technology in the firmware of the PDR-885. The
PDR-885 handles the automatic repetition of the
"V-Chip" data and can interleave it with existing
Line 21 Closed Caption data. An optional plug-in
modem is available that operates at 1200 or 2400
baud.
LINKELECTRONICS, INC. 2137 Rust Avenue Cape Girardeau, MO 63703-7668
Phone [phone] FAX [phone]
MADE IN THE USA

PDR-885/020808
MODEL PDR-885
VBI CAPTION DATA PROCESSOR
SPECIFICATIONS
INPUT:
Composite Video:
Level:.................. 1.0Vpp±6dB
Impedance: ......... 75Ω, Terminated
Connectors: ................... .BNC
ReturnLoss: .................. 40dB
Maximum DC on Input: ..........4VDC
Common Mode Range: .......... 8Vpp
S/VHS:
Level: Y Channel: ...........1.0Vpp±6dB
Level: C Channel: ....... 0.6Vpp,Nominal
Connector: ...............4PinMini-DIN
Impedance: ............ 75ΩTerminated
Y, R-Y, B-Y:
Level: Y Channel .......... 1.0Vpp±6dB
Level: R-Y Channel ..........BETAorMII
Level: B-Y Channel ..........BETAorMII
Connectors: ......................BNC
Impedance ............. 75Ω, Terminated
OUTPUTS:
NTSC Video:
Level:................... 1Vpp±6dB
InsertionGain:................. Unity
Impedance: .................... 75Ω
NumberofOutputs:.............. Two
Connectors: ....................BNC
Bandwidth:: ..................26MHz
Tilt:........ <1%ref.30Hzsquare wave
Hum: .................>70dB, 1.0Vpp
Overshoot & Ringing: ............<1%
Propagation Delay: ......... 30nS ±5%
Timing:....................... <5nS
S/NRatio: ................... >60dB
DifferentialGain: .............. <0.1%
DifferentialPhase:.............. <0.1°
DC Offset: ................. <0.2VDC
Y,R-Y, B-Y:
Y Channel: ..............1.0Vpp±6dB
R-Y Channel: .............BETAorMII
B-Y Channel: .............BETAorMII
Bandwidth:...................26MHz
Connectors: ....................BNC
S-VHS Video:
Level:
Y:.......................1Vpp±6dB
C:...................0.6VppNominal
Impedance: .................... 75Ω
Bandwidth:...................26MHz
Connectors: ............ 4PinMiniDIN
DECODER:
Output: .......................... Two
Level: ................. UnityGain±6dB
Character Video: ................ 90IRE
Character Background: ........... 10IRE
Frequency Response: ..... -3dBto26MHz
DifferentialGain ................. <0.1%
DifferentialPhase................. <0.1°
DC Offset .....................<0.2Vdc
LineRateTilt:................... <0.1%
FieldRateTilt: .................. <0.1%
FRONT PANEL CONTROLS:
ACPower: ..................... On/Off
By-Pass .......... Push/Push,Maintained
Test:.............Push/Push,Momentary
LED's,36total:...........Video Presence
..................... RS-232 Data In
.................... Field1&Field2
REAR PANEL:
Modem Connection: . . 9 Pin D wired as DTE
Computer Connection: 9 Pin D wired as DCE
Baud Rate: ......... Standard 1200, 8,N,1
ENVIRONMENTAL:
Temperature: ........0°to50°C(ambient)
Humidity: .... 10%to90%non-condensing
Power: .........................8VAR
AC Input: ....120/240VAC (±10%) 50/60Hz
MECHANICAL:
Height: .................... 1.75inches
Width:.......................19inches
Depth: .......................8inches
Weight:...................... 4.75Lbs.
LINKELECTRONICS, INC. 2137 Rust Avenue Cape Girardeau, MO 63703-7668
Phone [phone] FAX [phone]
SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE