5-6
Cable Diagrams
Cable Diagrams
Before using the following cable diagrams refer to the tables above to select the correct cable for your
application. Sometimes, crossover cables are wired slightly differently depending on the application. A
“complete” crossover cable would connect the TxD with RxD, DTR with DCD/DSR, and RTS with CTS
across both sides. A “simplified” crossover cable would cross TxD and RxD and locally short-circuit DTR
with DCD/DSR and RTS with CTS.
Most of the diagrams in this document show the “complete” version of the crossover cables, with support for
modem control signals and hardware flow control. Applications that do not require such features have just to
configure NO hardware flow control and NO DCD detection on their side. Both ends should have the same
configuration for better use of the complete version of the cables.
DTE DB-9 Male (standard)
•
Newer PC COM ports
•
Most Mice and pointing
Devices
•
Some automation devices
Cable 3 – RJ-45 to DB-9 F crossover (custom).
This custom cable can be ordered from Digi or
other cable vendors. A sample is included with the
products (console).
76000637
DTE RJ-45 Netra (custom)
•
Sun Netra Console Ports
•
Cisco Console Ports
Cable 4- RJ-45 to RJ-45 crossover (custom)
This custom cable can be ordered from Digi or
cable vendors using the provided wiring diagram.
76000636
To Connect To
Use Cable
Part Number