Table 2: db-9 pinouts for the blue heat/pci opto – Connect Tech Blue Heat/PCI PCI Serial Communications User Manual
Page 22
Blue Heat/PCI User’s Manual, Connect Tech Inc.
Revision 0.11
22
Table 1: DB-9 pinouts for Blue Heat/PCI RS-232, 422/485 models, Universal Blue Heat/PCI RS-422/485
Pin No.
RS-232
Signal
Direction
RS-422/485
Signal
Direction
1 DCD
input
RxD
B(+)
input
2 RxD
input
TxD
B(+)
output
3 TxD
output
TxD
A(-)
output
4 DTR
output
RxD
A(-)
input
5
SG
signal gnd SR
signal ref.
6 DSR
input
CTS
A(-)
input
7 RTS
output
RTS
A(-)
output
8 CTS
input
RTS
B(+)
output
9 RI
input
CTS
B(+)
input
Male DB-9 Connector
1
5
6
9
Part #(s): CAB04DX
CAB08FXDX
Table 2: DB-9 pinouts for the Blue Heat/PCI Opto
Pin No.
RS-232
Signal
Direction
RS-422/485
Signal
Direction
1
N/C
no connect
RxD (+)
input
2 RxD
input
RxD
(-)
input
3 TxD
output
TxD
(+)
output
4
N/C
no connect
TxD (-)
output
5
SG
signal gnd
SR
signal ref.
6
N/C
no connect
CTS (-)
input
7 RTS
output
RTS
(+)
output
8 CTS
input
CTS
(+)
input
9
N/C
no connect
RTS (-)
output
Male DB-9 Connector
1
5
6
9
Part #:
Note:
CABRJ4509
The RS-232 signals do not apply to the Blue Heat/PCI
Opto RS-422/485 adapter.