- 15 -
Appendix
Terminal Block Pin Assignments
DCE / DTE Connection Table
Pin
Assignment
1
TrV
2
Transmit -V
3
Receive -V
4
RV
DCE
DB-9
2
3
8
7
4
6
5
DTE
DB-9
3
2
7
8
6
4
5
DCE
DB-25
3
2
5
4
20
6
7
DTE
DB-25
2
3
4
5
6
20
7
DCE
DB-25
2
3
4
5
6
20
7
DTE
DB-25
3
2
5
4
20
6
7
Tx Rx
Rx Tx
RTS CTS
CTS RTS
DSR DTR
DTR DSR
GND
Cable
25/25
or
9/25 pin
IC-485ASI
Device's Connector Pin #
