Datasheet

CJ1M-CPU1@

RS-232C Port

Note: Baud rates for the RS-232C are specified only up to 19.2 kbps. The CJ Series supports serial communications from 38.4 kbps to 115.2 kbps,

but some computers cannot support these speeds. Lower the baud rate if necessary.

Note: Do not use the 5-V power from pin 6 of the RS-232C port for anything but the NT-AL001-E Link Adapter.

Using this power supply for any other external device may damage the CPU Unit or the external device.

Item Specification

Communications method Half duplex

Synchronization Start-stop

Baud rate

0.3/0.6/1.2/2.4/4.8/9.6/19.2/38.4/57.6/115.2 kbps

(See note.)

Transmission distance 15 m max.

Interface EIA RS-232C

Protocol Host Link, NT Link, 1:N, No-protocol, or Peripheral Bus

Pin No. Signal Name Direction

1 FG Protection earth −

2 SD (TXD) Send data Output

3 RD (RXD) Receive data Input

4 RS (RTS) Request to send Output

5 CS (CTS) Clear to send Input

6 5V Power supply −

7 DR (DSR) Data set ready Input

8 ER (DTR) Data terminal ready Output

9 SG (0V) Signal ground −

Connector hood FG Protection earth −