Interface Specifications; 1 ] Interface Connector And Pin Assignment - Denso BHT-8000 User Manual

5.7 Interface Specifications

[ 1 ] Interface Connector and Pin Assignment

CU-8001/8002
The CU-8001/8002 has an RS-232C interface port (Dsub-9P).
Pin No. Signal
2 RD
3 SD
4 ER
5 SG
6 DR
7 RS
8 CS
The input/output voltage threshold for the logical valued signal is listed below.
CU-8001
Logical Value
0
1
CU-8002
Logical Value
0
1
RS-232C Interface Port (Dsub-9P) on the CU-8001/8002
Functions
Receive data
Send data
Data terminal equipment ready
Signal ground
Data set ready
Request to send
Ready to send
Input Voltage Threshold (n)
3V ≤ n ≤ 15V
-15V ≤ n ≤ -3V
Input Voltage Threshold (n)
5V ≤ n ≤ 15V
-15V ≤ n ≤ -5V
CU-8001/8002 External device
168
Signal Input/Output
←
→
→
—
—
—
—
Output Voltage Threshold
5V min.
-5V max.
Output Voltage Threshold
3.2V min.
-3.2V max.