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Model T940 User Manual
Publication No. 980938 Rev. K
Introduction 1-10
Astronics Test Systems
Driver/Receiver Board B (DRB)
The DRB board contains all the driver/receiver logic, relays, sensors and
termination circuitry for channels 33 through 64.
Model and Part Number Information
Model #
Description
Ordering Part #
DR1
LVTTL, 32 channels, 100
Ω source termination
405349-001
LVTTL, 32 channels, 50
Ω source termination
405349-002
DR2
LVDS, 32 channels, 100
Ω source termination
405350
DR3e
Variable voltage, -15 V to +24 V, 32 Channels
408002
DR4
Variable voltage, -31 V to +31 V, 48 Channels
408558
DR7
RS422/RS485, 32 channels, 100
Ω source
termination
408242-101
DR8
TTL, 32 channels, 100
Ω source termination
408241-101
TTL, 32 channels, 50
Ω source termination
408241-102
DR9
Variable voltage, -15V to +24V, 24 Direct/Analog
Test Channels
408254
UR14
Utility resource, 32 HV Open Collector channels,
probe interface, auxiliary interface
408290
To understand a configured module part number for a T940 DRM, use the T940
model number configurator shown in the next figure.