Specifications

The Agilent 8494/5/6 attenua-
tors come standard with a
Viking connector and a Viking
to bare wire cable. The Agilent
8490x attenuators use a 10-pin
socket header. Both are sup-
ported on the Y1153A. The As
and Ts are nomenclature that
represent Attenuator or pass-
through, so the attenuator sec-
tion is either inline or bypassed.
Position feedback is cleverly
combined with the drive lines
to indicate which section has
been selected. That is reflected
in the LEDs which represent
the selected sections.
LEDs are paired, left to right.
Two LEDs are used per section.
LED1 socket header supports
Channels one to four. Logic
sense can be inverted to have
LEDs representing attenuation
or pass-through.
Wiring for the Viking to bare
wire connection is indicated in
the Table 6. Here is an example
of commonly accessible part
numbers for building a cable
for the 8490x attenuators. All
parts can be found at popular
electronics distributors (e.g.
Digi-Key or Newark), or you
can purchase the Y1157A,
Y1158A, or Y1159A kits
illustrated below:
• Ribbon Cable:
3M P/N 3365/10 (28 AWG)
• Y1153A Connector:
10-pin socket connector,
IDC termination.
3M P/N 89110-0101
• 8490x Connector:
10-pin socket connector,
IDC termination.
3M P/N 89110-0101
• Y1157A Kit:
One kit supplies parts to
build four attenuator cables
• Y1159A Kit:
One kit supplies parts to
build two cables to connect
to LEDs
• Wire Pin 1 to Pin 1
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