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??? 12/28/07 09:20 Read: times	#148820 - Reverse engineer these Responding to: ???'s previous message
	http://www.blackbox.com/Catalog/D...5&mid=1123

List of 56 messages in thread

Topic	Author	Date
Line driver IC		01/01/70 00:00
Telephone lines?		01/01/70 00:00
Slower analog solution..		01/01/70 00:00
That's a job for a transfomer!		01/01/70 00:00
line driver		01/01/70 00:00
Missing the point		01/01/70 00:00
Eh?? What is		01/01/70 00:00
Modem?		01/01/70 00:00
Think Telco even if it's not		01/01/70 00:00
Have you read the datasheet?		01/01/70 00:00
Not the modem speed		01/01/70 00:00
What datasheet??????		01/01/70 00:00
That is the datasheet		01/01/70 00:00
I mentioned the chips and you say I havnt		01/01/70 00:00
No, you don't		01/01/70 00:00
Xformer only		01/01/70 00:00
at this low data rate (9600 bps) he could use AMI		01/01/70 00:00
AMI protocol		01/01/70 00:00
who said anything about protocol?		01/01/70 00:00
Difficult and with few software options		01/01/70 00:00
Nobody said anything about a protocol		01/01/70 00:00
Getting ahead of the questions		01/01/70 00:00
fact is ... we don't have the information ...		01/01/70 00:00
Spare wire is already there . We do not		01/01/70 00:00
Getting ahead of the questions		01/01/70 00:00
What type of wire and what environment?		01/01/70 00:00
please stop this mistreatment of a word		01/01/70 00:00
A Protocol is a set of guidelines or rules.		01/01/70 00:00
Apologies , I meant CODEC nor protocols		01/01/70 00:00
I am not sure...		01/01/70 00:00
27 or more solutions exist ...		01/01/70 00:00
~9600bps		01/01/70 00:00
9600 is tough at that distance, so		01/01/70 00:00
Tough?		01/01/70 00:00
Not Tough? but costly.		01/01/70 00:00
Still missing the point		01/01/70 00:00
He did specify the data rate		01/01/70 00:00
Where to apply modulation schemes when		01/01/70 00:00
Oh yes you have!		01/01/70 00:00
Driver/interface		01/01/70 00:00
no		01/01/70 00:00
Maxim Preemph RS-422 driver		01/01/70 00:00
FEET		01/01/70 00:00
speed and distance still apply		01/01/70 00:00
a pretty fancy rf link would fit the cable budget		01/01/70 00:00
Reverse engineer these		01/01/70 00:00
Reverse engineer these		01/01/70 00:00
buy one and find out		01/01/70 00:00
Seems simple enough!		01/01/70 00:00
Why not		01/01/70 00:00
No black (box) magic methinks		01/01/70 00:00
an other blackbox		01/01/70 00:00
current loop vs balanced signal lines		01/01/70 00:00
Have you ever heard of the teletype?		01/01/70 00:00
Bell system teletypes		01/01/70 00:00
10...15years ago		01/01/70 00:00

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