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Model
Module Name
Number
N2260A
40-Channel MUX
Module
3
N2266A
40-Channel MUX
Module
N2268A
50
4-to-1 MUX
Module
N2270A
10-Channel High
Voltage MUX
Module
44470A/D
10/20-Channel
MUX Module
44472A
Dual 4-Channel
VHF Switch
Module
44478A/B
50
Multiplexer
Chapter 3 System Overview
Plug-in Modules Overview
Mainframe
Slots
Required
1
1
3.5 GHz Dual
1
2
1
1
75
1.3 GHz
1
60
Relay
Description
Type
Latching
In 3488 mode, a 40-channel 2-
wire multiplexer, switches both
HI and LO inputs (200 V, 1 A)
with DPST relays.
Reed non-
In 3488 mode, a 40-channel 2-
latching
wire multiplexer.
Latching
Consists of two independent 1-
to-4 MUX switches which can
switch up to 30VDC or peak AC
at frequencies from DC to
3.5 GHz.
Non-
10-channel 2-wire High Voltage
latching
MUX module with maximum
switching voltage 1000V peak
and maximum switching power
10W.
Latching
The 10/20 DPST (Double-pole
Single-throw) relays switch both
HI and LO inputs up to 250V,
2A with low differential offsets
for accurate measurements.
Latching
The two independent groups of
bidirectional 1x4 switches with
50
characteristic impedance
can be used for signals from
DC to 300 MHz.
Latching
The two independent groups of
bidirectional 1x4 switches with
50
75
impedance can be used for
signals from DC to 1.3 GHz.
characteristic
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