Panasonic AJ-D440, AJ-D450 manual RS-232C interface, Introduction, Hardware specifications

RS-232C interface

1.Introduction

(1)The VTR can be operated by commands when the RS-232C interface is used.

(See command table on page 60 – 62.)

(2)Conditions for acknowledging commands from RS-232C interface

The front panel REMOTE/LOCAL switch must be at REMOTE. The setup menu item No. 204 “RS232C SEL” must be ON.

If the above conditions are not met, [ACK] + [STX]ER001[ETX] is returned to the external unit.

Whether the [ACK] code is returned depends on the setting which has been selected for setup menu item No. 209 “RETURN ACK”.

2.Hardware specifications

External interface specifications

1)Connector specifications

Connector: D-SUB 25-pin (straight cable supported)

Pin No.	Signal	Circuit name	Description
1	FG	Protective ground	Frame ground
2	TXD	Transmitted data	Data is received from PC.
3	RXD	Received data	Data is sent to PC.
4	RTS	Request to send	Shorted with pin 5.
5	CTS	Clear to send	Shorted with pin 4.
6	DSR	Data set ready	+ voltage output after communication enable status
7	SG	Signal ground	Signal ground
20	DTR	Data terminal ready	No processing

2) Example of connection with controller (PC)
■ Using straight cable with D-SUB 25-pin connectors	■ Using straight cable with D-SUB 9-pin connectors
	and 25-pin connectors

PC side
(D-SUB 25-pin
connector)		VTR side
FG	1		1	FG
TXD	2		2	TXD
RXD	3		3	RXD
RTS	4		4	RTS
CTS	5		5	CTS
DSR	6		6	DSR
SG	7		7	SG
DTR	20		20	DTR

PC side (D-SUB 9-pin connector)

RXD	2
TXD	3
DTR	4
SG	5
DSR	6
RTS	7
CTS	8

VTR side

1	FG
2	TXD
3	RXD
4	RTS

5CTS

6DSR

7SG

20 DTR

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