Rs-232C Protocol; Specifications; Operating Method - Sony MDS-B5 Operation Manual

RS-232C Protocol

RS-232C Protocol
The connection of MDS-B5 with an external personal
computer allows MDS-B5 to be controlled from
external equipment including the personal computer.
This section describes its operating method from a
viewpoint of electrical and software specifications.

Specifications

Format Serial
Electrical characteristics
RS-232C compatible (not
compatible with the 9-pin remote
(RS-422A) such as Sony VTR for
professional use)
Connector D-sub, 9-pin, male, inch screw
Pin assignment and I/O signals
Pin No. I/O Signal
1 — N. C.
2 I RxDATA
3 O TxDATA
4 O DTR
5 — GND
6 I DSR
7 O RTS
8 I CTS
9 — N. C.

Operating Method

Synchronous mode between MDS-B5 and
the personal computer
Adjust the transmission rate, bit length, parity and stop
bit length. The following provides a setting method.
Description
Not used.
Inputs reception data.
Outputs transmission data.
Notifies that the set is ready
for communication.
Ground
Acknowledges that the
personal computer is ready
for communication.
Notifies that the set
requests data transmission.
Acknowledges that the
personal computer requests
data transmission.
Not used.
Contents of menu set screen
Items Contents
Transmission rate 1200, 2400, 4800, 9600 (bauds)
Parity OFF, ODD, or EVEN
Stop bit length Stop bit1 or Stop bit 2
1 Press the EDIT/NO button on the deck while
holding down the STOP button.
The Setup menu appears in the display window.
2 Turn the AMS control to display the menu item
you want to set (F13: baud rate, F14: parity bit, or
F15: stop bit).
3 Press the AMS control.
4 Turn the AMS control to select the setting value.
5 Press the AMS control again to affect the selection.
The settings are saved even after the power is turned
off and on again.
Communication with the RS-232C
interface terminal on the personal
computer side
When connecting the RS-232C interface terminal of
MDS-B5 with that of the personal computer, perform
as follows:
Connect the DSR of MDS-B5 with DTR of the
personal computer, and DTR of the set with DSR of
the personal computer. These signals notify that both
the MDS-B5 and the personal computer are ready for
communication.
Also, connect the CTS of the MDS-B5 with RTS of
the personal computer. The MDS-B5 does not
transmit that data until the CTS is received (that is, the
personal computer is ready). Likewise, connect the
CTS of the personal computer with RTS of the MDS-
B5 so that the communication that meets the
processing capacity of the MDS-B5 can be made.
A-5
Appendix