User`s manual

DT-6061 User's Manual - Platform (Build 16.0)
11/12/04 Datatek Applications Inc. 46
12.1 THE DB9 CONSOLE ADAPTER
Some Personal Computers use a 9-pin DB9 interface for serial communications. The terminal
emulation programs may require certain lead status. Since console connections are generally
implemented as three wire interfaces (i.e. RxD, TxD, and SG); this may pose a problem for the
terminal emulation programs.
Below is depicted the wiring of a DB9 adapter which eliminates the problems associated with
these terminal emulation programs. It is used with a standard straight category 5 RJ45 cable.
12345678
RJ45 Female Pin Numbering
RJ45 Female
1
2
3
4
5
6
7
8
DB9 Async DCE Console Adapter
DB9 Female
1
2
3
4
5
6
7
8
9
DTR
DCD
SG
DSR
CTS
RTS
RxD
TxD
RI
Note: This cable for use on console ports only.
Use with a straight
CAT-5 RJ45 cable.
9-Pin Console Adapter Wiring Diagram