Connect Tech BlueStorm/Express User Manual
Revision 0.15
19
Table 5: DB-37
This DB-37 Connector pinout applies only to the following Part Numbers:
BEG002, BEG004
Pin
No.
Port
No.
RS-232
Signal
Direction
RS-422/485
Signal
Direction
1
1
SG
signal gnd
SR
signal ref
2
1
DTR
output
RxD A(-)
input
3
1
TxD
output
TxD A(-)
output
4
1
RxD
input
TxD B(+)
output
5
1
DCD
input
RxD B(+)
input
6
unused
unused
7
3
RI
input
CTS B(+)
input
8
3
CTS
input
RTS B(+)
output
9
3
RTS
output
RTS A(-)
output
10
3
DSR
input
CTS A(-)
input
11
4
RI
input
CTS B(+)
input
12
4
CTS
input
RTS B(+)
output
13
4
RTS
output
RTS A(-)
output
14
4
DSR
input
CTS A(-)
input
15
2
SG
signal gnd
SR
signal ref
16
2
DTR
output
RxD A(-)
input
17
2
TxD
output
TxD A(-)
output
18
2
RxD
input
TxD B(+)
output
19
2
DCD
input
RxD B(+)
input
20
1
RI
input
CTS B(+)
input
21
1
CTS
input
RTS B(+)
output
22
1
RTS
output
RTS A(-)
output
23
1
DSR
input
CTS A(-)
input
24
3
SG
signal gnd
SR
signal ref
25
3
DTR
output
RxD A(-)
input
26
3
TxD
output
TxD A(-)
output
27
3
RxD
input
TxD B(+)
output
28
3
DCD
input
RxD B(+)
input
29
4
SG
signal gnd
SR
signal ref
30
4
DTR
output
RxD A(-)
input
31
4
TxD
output
TxD A(-)
output
32
4
RxD
input
TxD B(+)
output
33
4
DCD
input
RxD B(+)
input
34
2
RI
input
CTS B(+)
input
35
2
CTS
input
RTS B(+)
output
36
2
RTS
output
RTS A(-)
output
37
2
DSR
input
CTS A(-)
Input