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NSG 5500 Automotive transient immunity generator
3.3 FT 5531 Operation
3.3.1 Introduction
The FT 5531 (
FT
=
F
ast
T
ransients) is a plug-in burst generator designed for use with the NSG 5500 mainframe
system. This generator is designed primarily to meet the specification requirements for the ISO 7637
standard for pulses 3a and 3b. In many cases the specification of this generator exceeds those specified in
the ISO 7637 standard.
When slotted into an NSG 5500 mainframe, the FT 5531 burst generator is fully programmable via USB or RS
232 or IEEE 488 interface. Parameters such as amplitude, burst frequency, pulse frequency, number of pulses
in the burst, number of bursts are all under program control. This allows flexible test patterns to be generated
which can facilitate rapid analysis of susceptibility limits of a device under test.
The FT 5531 is designed using state of the art semi-conductor technology. This means repeatable performance
and maintenance free operation. It also means that test results can be repeated accurately.
The output pulses of the generator are available on two connectors, a 50 Ohm BNC connector and a pair of 6
mm sockets. The 6 mm socket output has the added advantage in that it forms part of the multiplexed power
bus within the NSG 5500 system. This means that output pulses for other plug-in units are also available on
the socket output of the FT 5531 module. This can simplify fixturing to the device under test.
NOTE!
The AutoStar program available from Teseq is a Windows based graphical program
which allows full control of all programmable features via an intuitive graphical
windows front panel.
The BNC output connector must be chosen from AutoStar. NO DC is present at
this connector and it is meant for pulse 3 only.
Picture 3-20: FT 5530 Front panel layout.
Indicates power ”ON”
Flashes when unit addressed
Indicates an error condition
BNC output
Flashes when 3a pulses generated
Flashes when 3b pulses generated
System stop button
6 mm output sockets
