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Chapter 3 System Overview
Plug-in Modules Overview
3
Multiplexers are available in several types:
•
One-Wire (Single-Ended) Multiplexer for common LO measurements
•
Two-Wire Multiplexer for floating measurements
•
Four-Wire Multiplexer for resistance and RTD measurements
•
Very High Frequency (VHF) / Microwave Multiplexer for switching
frequencies up to microwave (26.5 GHz).
The table below lists the available MUX modules.
Model
Number
Module Name
Mainframe
Slots
Required
Relay
Type
Description
N2260A 40-Channel MUX
Module
1 Latching Primarily a 40-channel 2-wire
multiplexer, switches both HI
and LO inputs (200 V, 1 A) with
DPST relays. It can be
configured as an 80-channel 1-
wire, two independent 20-
channel 2-wire or a 20-channel
4-wire MUX module.
N2266A 40-Channel MUX
Module
1 Reed non-
latching
Primarily a 40-channel 2-wire
multiplexer. In SCPI mode it can
be configured as an 80-channel
1-wire, two independent 20-
channel 2-wire or a 20-channel
4-wire MUX module.
N2268A 50Ω 3.5 GHz Dual
4-to-1 MUX
Module
1 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.
N2270A 10-Channel High
Voltage MUX
Module
2Non-
latching
10-channel 2-wire High Voltage
MUX module with maximum
switching voltage 1000V peak
and maximum switching power
10W.