Denso BHT-7000 User Manual

122

The CU-7000 has an RS-232C interface port (Dsub-25S).

RS-232C interface port (Dsub-25S) on the CU-7000

Pin No.

Signal

Functions

Signal Input/Output

CU-7000    External device

1

FG

Frame ground

—

2

SD

Send data

→

3

RD

Receive data

←

4

RS

Request to send

—

5

CS

Ready to send

—

6

DR

Data set ready

—

7

SG

Signal ground

—

8

CD

Carrier detect

—

20

ER

Data terminal equipment ready

—

The input/output voltage threshold for the logical valued signal is listed below.

Logical Value

Input Voltage Threshold

Output Voltage Threshold

0

3V min.

5V min.

1

-3V max.

-5V max.

25

13

14

1