Westermo ED-10 TCP User Manual
Page 10
Pin
Signal Name*
Number Description
V.24
RS-232C
Direction**
Description
1
DCD
109
CF
Out
TCP connection established
2
RD
104
BB
Out
Received Data
3
TD
103
BA
In
Transmitted Data
4
DTR
108.2
CD
In
DTR, close TCP connection
5
SG
102
AB
In/out
Signal Ground
6
DSR
107
CC
Out
DSR, ED-10 TCP ready
7
RTS
105
CA
In
Request to Send
8
CTS***
106
CB
Out
Clear to Send
9
RI
125
CE
–
Ring Indicator, not connected
10
6609-2211
1
2
3
4
5
6
7
8
9
*
Functionality might differ from standard, see chapter 6.3
** Direction relative ED-10 TCP.
*** Follows DSR (CTS will be deactivated as required by flow control)
RS-232 cable must not exceed 15 m
CH1: RS-422/485 Connections (Upper left screw terminal)
5
4
3
2
1
Terminal
Signal Name*
Number
Marked on
According
ED-10 TCP
to Standard
Direction**
Description
1
SG
–
–
Not connected
2
T–
B
Out/In
RS-422/485 4-wire Transmitter /
RS-485 2-wire T– and R–
3
T+
A
Out/In
RS-422/485 4-wire Transmitter /
RS-485 2-wire T+ and R+
4
R–
B’
In
RS-422/485 4-wire Receiver
5
R+
A’
In
RS-422/485 4-wire Receiver
* Numbered right to left (front view).
** Direction relative ED-10 TCP.
Twisted pair cable is recommended
CH1: RS-232 Connections (D-sub connector), DCE