SENA DirectPort UPCI Software - Manual (Page 11)

11
4 DirectPort UPCI4
4.1 DB9 Pin Assignments
4.2 Cabling
4.2.1 Connecting Terminal
4.2.2 Connecting Modem
1
2
3
4
5
6
7
8
9 DSR
RTS
CTS
RI
DCD
RS232
DB9 Male
RXD
TXD
DTR
GND
RXD
TXD
DSR
DTR
GND
RTS
CTS
DCD
2(3)
3(2)
6(6)
4(20)
5(7)
7(4)
6(5)
1(8)
TXD
DB9 TERMINAL
RXD
DTR
DSR
GND
DCD
RTS
CTS
3
2
4
6
5
1
7
8
TXD
RXD
RTS
CTS
DSR
GND
DCD
DTR
RI
2
3
4
5
6
7
8
20
22
TXD
DB9 Modem
RXD
RTS
CTS
DSR
GND
DCD
DTR
RI
3
2
7
8
6
5
1
4
9
When only pin No. 2,3,5(2,3,7)
are informally used connect
7-8(4-5) and 4-6(4-8-20) in
a loopback type repectively.
(Parenthesized pin number is
applied for 25pin terminal)