— A.16 —
Specifications for interface specifications
[ Basic specifications ]
Item Specifications
Signal level standard Conforms to EIA RS232C
Synchronous system Asynchronous system
Communication system Full-duplex
Logical requirements EIA RS-232C, CCITT V.24, JIS x 5101
Electric properties EIA RS-232C, CCITT V.24, JIS x 5101
Connector D-SUB25 pin (female) conforming to JIS X 5101
Transmission speed (bps) 1200 / 2400 / 4800 / 9600 / 19200
Start bit length 1
Stop bit length 1 / 1.5 / 2
Parity bit No parity / even number / odd number
Hand shake Hard / X code
[ Configuration of the connector and signal table ]
Pin No. Abbreviation Name of signal Source of transmission
1FGProtective ground —
2SDTransmitted data This device
3RDReceived data Computer
4RSRequest for transmission This device
5CSTransmission possible Computer
6DRData set ready Computer
7SGSignal ground —
20 ER Data terminal ready This device
13 1
25 14