Connect Tech Blue Heat/Net Manuel d'utilisateur Page 88

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Connect Tech Blue Heat/Net User Manual
88 Revision 0.17
Basic “3 wire” RS-232 null modem connection:
This is used to connect to DTE type devices.
The Blue Heat/Net is a DTE type device.
Used when Hardware RTS->CTS flow control is not required.
This cable is also called a cross over cable.
Connecting to DCE type devices:
DCE type devices do not require a Null Modem cable, they require a straight through cable.
Straight through cables, both DB-9 to DB-9 and DB-9 to DB-25 are commonly available.
The following is an example of a DB-9 Female cable to a DB-25 Male cable to connect to a
modem.
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