123
Appendices
Signal Input/Output
External
device
[ 3 ] Interface Specifications
25
13
14
1
RS-232C Interface Port (Dsub-25S) on the CU-5000
BHT-5000
Pin No.
Signal
Functions
Pins 1 (FG), 6 (DR), and 8 (CD) are not connected.
2
SD
Send data
→
3
RD
Receive data
←
4
RS
Request to send
→
5
CS
Ready to send
←
7
SG
Signal ground
—
20
ER
Data terminal equipment ready
→