Blue Heat/PCI User’s Manual, Connect Tech Inc.
Revision 0.11
24
Table 5
: Blue Heat/PCI RJ-11 pinouts
DB-9
Pin No.
RS-232
Signal
Direction
RJ-11
Pin No.
RS-232
Signal
Direction
1 DCD
input
1 RTS
output
2 RxD
input
2 RxD input
3 TxD
output
3 TxD
output
4 DTR
output
4 DSR input
5 SG
signal
ground
6 DSR
input
5 SG
Signal/power
ground
7 RTS
output
8 CTS
input
6 +12
VDC**
or +5 VDC**
output
9
RI
input
** This option is a factory installed option
Part #:
CAB104K
Technical Tip:
Please ensure that you terminate the CTS signal if your application does
not use them. The common way to do this is to connect CTS to RTS.
Failure to do so may result in loss of a performance on your Blue
Heat/PCI RJ-11 adapter.
Table 6:
Blue Heat/PCI 20mA CL pinouts
Pin No.
20mA Signal
Direction
1 RxD(-) input
2 TxD(+) output
3 TxD
Source
output
4 TxD
Return
output
5 SG
signal
ground
6 RxD
Return
input
7 TxD(-) output
8 RxD(+) input
9 RxD
Source
input
Part No.: CAB08FXDX
Male DB-9 Connector
1
5
6
9
Male DB-9 Connector
1
5
6
9
1
6
RJ-11 Connector