Rs-232C Interface Specifications; 1 ] Interface Connector And Pin Assignment - Denso BHT-100B User Manual

5.6 RS-232C Interface Specifications

[ 1 ] Interface Connector and Pin Assignment

The CU-7000 has an RS-232C interface port (Dsub-25S).
Pin No. Signal
1 FG
2 SD
3 RD
4 RS
5 CS
6 DR
7 SG
8 CD
20 ER
The input/output voltage threshold for the logical valued signal is listed below.
Logical Value
0
1
13
25
RS-232C interface port (Dsub-25S) on the CU-7000
Functions
Frame ground
Send data
Receive data
Request to send
Ready to send
Data set ready
Signal ground
Carrier detect
Data terminal equipment ready
Input Voltage Threshold
3V min.
-3V max.
1
14
Signal Input/Output
CU-7000
Output Voltage Threshold
5V min.
-5V max.
146
External device
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