[GreenKeys] DTE etc

[eugene at hertzmail.com]

I am likely wrong, but I recall DTE/DCE as Data Terminal Equipment (the
thing a person uses) and Data Communications Equipment (like a modem).

A DTE connected to a DCE requires a straight through cable (pin 1 to pin
1, etc)

Two DTEs connected together require a NULL Modem cable which puts Tx of
one device onto the Rx of the other and vice versa.

Eugene


-----Original Message-----
From: greenkeys-bounces at mailman.qth.net
[mailto:greenkeys-bounces at mailman.qth.net] On Behalf Of WB6BLV Central
California
Sent: Wednesday, May 21, 2008 5:41 PM
To: GreenKeys at mailman.qth.net
Subject: [GreenKeys] DTE etc

RS-232 (Recommended Standard 232) is a standard for serial binary data
signals connecting between a DTE (Data terminal equipment) and a DCE
(Data
Circuit-terminating Equipment).

(According to the book RS-232 Connection, the 'standard' is not
necessarily
followed by many manufacturers, so some DTE and DCE devices may or may
not
function as one would expect from reading the 'standard'.)

John
WB6BLV at inreach.com

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