If I Recall, The Maximum Cable Length For HP-1B
?Was 20 Meters. Perhaps Someone Else Knows For Sure.
?
Greyhawk
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----- Original Message -----
Sent: Wednesday, January 14, 2004
17:35
Subject: [hp_agilent_equipment]
Information on 37203A HP-IB Extenders
I've recently tried to use a pair of old
37203A HP-IB Extenders to extend the distance of several IEEE-488 instruments
from the controller.? I don't have a manual on hand, but I thought the
units should be fairly straightforward to use.? I set the "controller
end" as Master and the "instrument end" of the link as "Slave," the rates at
the same setting (Normal), and connected the power and -488 instruments.?
Although I can see a series of negative-going pulses on the coaxial
interconnecting cable, I can't seem to get communications between the
controller and the instruments.? The length of the cable is about 150
meters.
Can anyone give me any guidance for their operation??
There are a few "mystery switches" inside the units along with a jumper
printed wiring board -- I left all these as they were.? Any help would be
sincerely appreciated.
Regards -- Tom Leedy
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