BlueStorm/LP Installation Guide, Connect Tech Inc.
Revision 0.05
11
Table 2: HDB-44 Pinouts (4 port connector)
Pin
No.
Port
No.
RS-232
Signal
Signal
Direction
RS-422/485
Signal
Signal
Direction
1 1 TXD
output
TXD-
output
2 1 RTS
output
RTS-
output
3 1 DCD
input
RXD+
input
4 1 RXD
input
TXD+
output
5 2 TXD
output
TXD-
output
6 2 RTS
output
RTS-
output
7 2 DCD
input
RXD+
input
8 2 RXD
input
TXD+
output
9 3 TXD
output
TXD-
output
10 3 RTS
output
RTS-
output
11 3 DCD
input
RXD+
input
12 3 RXD
input
TXD+
output
13 4 TXD
output
TXD-
output
14 4 RTS
output
RTS-
output
15 4 DCD
input
RXD+
input
16 1 CTS
input
RTS+
output
17 1 SG
signal
gnd.
SR
signal
ref.
18
NC
no connect
NC
no connect
19
NC
no connect
NC
no connect
20 2 CTS
input
RTS+
output
21 2 SG
signal
gnd.
SR
signal
ref.
22
NC
no connect
NC
no connect
23 3 CTS
input
RTS+
output
24 3 SG
signal
gnd.
SR
signal
ref.
25
NC
no connect
NC
no connect
26
NC
no connect
NC
no connect
27 4 CTS
input
RTS+
output
28 4 SG
signal
gnd.
SR
signal
ref.
29
NC
no connect
NC
no connect
30 4 RXD
input
TXD+
output
31 1 DSR
input
CTS-
input
32 1 DTR
output
RXD-
input
33 1 RI
input
CTS+
input
34
NC
no connect
NC
no connect
35 2 DSR
input
CTS-
input
36 2 DTR
output
RXD-
input
37 2 RI
input
CTS+
input
38
NC
no connect
NC
no connect
39 3 DSR
input
CTS-
input
40 3 DTR
output
RXD-
input
41 3 RI
input
CTS+
input
42 4 DSR
input
CTS-
input
43 4 DTR
output
RXD-
input
44 4 RI
input
CTS+
input
Cable CB003 sends the signals to four DB-9 male connectors. Cable CB007 sends the signals to
four DB-25 connectors. See
