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Chapter 7 Plug-in Modules
N2266A 40-Channel MUX Module
4
7
N2266A Simplified Schematic
The 40 2-wire channel relays (CH00-CH39) are divided into two banks:
BANK 0 and BANK 1. Each bank consists of 20 2-wire switching
channels and a common bus (COM0 & COM1). There is also a single-
ended common terminal (SE-COM) used when the multiplexer is
configured to 80-channel 1-wire mode. The two tree relays, T98 and T99,
are used to configure the N2260A.
L
H
L
H
CH00
L
H
L
H
CH09
L
H
L
H
CH19
SE-COM
L
H
L
H
CH10
CH00
CH09
CH19
CH10
L
H
L
H
CH29
L
H
L
H
CH20
L
H
L
H
CH39
L
H
L
H
CH30
CH39
CH30
L
H
COMMON BUS
COM0
CH20
L
H
COMMON BUS
COM1
CH29
BANK 0
BANK 1
T98
T99
N2266A
MUX Module Terminal Block
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