3 ] Interface Specifications - Denso BHT-7500S User Manual

[ 3 ] Interface Specifications

Pin No. Signal
1 FG
2 SD
3 RD
4 RS
5 CS
6 DR
7 SG
8 CD
20 ER
Shown below is a diagram of the internal connection in the CU-7000.
Host computer,
modem, or
other devices
Signal
Pin No.
Name
FG
1
Not used.
SD 2
RD 3
RS 4
CS
5
DR 6
ER
20
CD
8
SG 7
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
CU-7000
RS-232C
Interface
Circuitry
1
14
Optical
Communications
Interface
Circuitry
174
Signal Input/Output
External
CU-7000
device
—
→
←
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Optical Interface
BHT