Appendix A: Interfaces
A–8
MTD200 MPEG Test Decoder User Manual
Interconnections with local controller in case of software handshake.
In case of
software handshake, the MPEG test decoder is connected with a controller
according to the following wiring diagram. The wiring diagram applies to a
controller with a 9-pin or 25-pin connector. See Figure A–1.
6
9
1
5
6
9
1
5
6
9
1
5
14
25
1
13
Controller
25 pins
Controller
9 pins
MPEG test
decoder pin
Signal
Controller
pin
RxD / TxD
3
2
TxD / RxD
2
3
GND / GND
5
5
Signal
Controller
pin
RxD / TxD
3
2
TxD / RxD
2
3
GND / GND
7
5
MPEG test decoder
9 pins
MPEG test decoder
9 pins
MPEG test
decoder pin
Figure A–1: Wiring Diagram for software handshake
Hardware handshake.
In case of a hardware handshake, the MPEG test decoder
signals its ready-to-receive state via the RTS lines. A logic ‘0’ (active) means
“ready” and a logic ‘1’ means “not ready”.
The MPEG test decoder is informed about the ready-to-receive state of the
remote station via the CTS line. A logic ‘0’ activates the data output, a logic ‘1’
informs the MPEG test decoder to stop sending further data. The DTR line
remains active (logic ‘0’) as long as the serial interface is switched on as a
remote-control interface.
Interconnections with local controller in case of hardware handshake.
The MPEG test decoder is connected with a controller by means of a null-
modem cable. When this cable is used, the data, control and signalling lines have
to be crossed. The following wiring diagram applies to a controller with a 9-pin
or 25-pin connector.
Summary of Contents for MTD200
Page 1: ...User Manual MTD200 MPEG Test Decoder 070 9951 00...
Page 4: ......
Page 15: ......
Page 29: ...Introduction to Digital TV Transmission Technique 1 14 MTD200 MPEG Test Decoder User Manual...
Page 30: ......
Page 51: ......
Page 62: ......
Page 97: ......
Page 167: ...Remote Control 5 70 MTD200 MPEG Test Decoder User Manual...
Page 168: ......
Page 174: ...Maintenance and Checking 6 6 MTD200 MPEG Test Decoder User Manual...
Page 175: ......
Page 194: ......
Page 204: ...Glossary Glossary 10 MTD200 MPEG Test Decoder User Manual...
Page 205: ......
Page 209: ...Index Index 4 MTD200 MPEG Test Decoder User Manual...
Page 210: ......
Page 211: ......