12-1
12 RS-232C Control
9
5
6
1
Pin No.
1
2
3
4
5
6
7
8
9
Signal name
RSV
RD
TD
RSV
GND
RSV
RTS
CTS
RSV
Function
RESERVED
RECEIVE DATA
TRANSMIT DATA
RESERVED
GND
RESERVED
TRANSMIT REQUEST
TRANSMIT POSSIBLE
RESERVED
I/O
—
I
O
—
—
—
O
I
—
The COM connector (D-sub 9-pin) on the rear panel of the recorder conforms to the RS-
232C signal format. Thus, the recorder can be controlled from a host computer by
connecting an RS-232C cable (commercially available) to the COM connector.
!
CAUTION
•
Use a shielded RS-232C cable.
When the recorder is controlled via RS-232C, it is recommended to monitor the status
of the recorder by using the commands such as ERR? or ALM?.
•
Data will not be recorded for the first one second after the REC command via RS-232C.
12-1 Interface Specifications
Signal format
: EIA RS-232C protocol
Connector
: Square, D-sub 9-pin
Bit rate
: 9.6, 19.2 kbps (switchable), asynchronous
Character length
: 8 bits
Parity bit
: None
Stop bit
: 1 bit
Flow control
: CTS/RTS - Hardware flow control
Connector Pin Assignment