Keysight 87421A, Operating And Service Manual

Page: 14 / 27

12
Keysight
87421/2A Power Supply Operating and Service Manual
1 Introduction
Product Overview
The 87421A and 87422A power supplies are universal input, dc
switching power supplies designed to provide the bias voltages
needed to operate microwave system amplifiers.
87421A Power Supply
The 87421A is a 25watt, ±12Vdc power supply designed to
power the 83006A, 83017A, and 87415A microwave system
amplifiers.
• The power supply includes an AC power cord with
protective ground for connection to 100- 240Vac.
• Also included is a 2 meter cable with a 3- pin connector on
one end and a D- subminiature connector (83006- 60005)
on the other end for direct connection to the microwave
system amplifiers.
The 87421A may also be used to provide bias voltages for the
83440C high speed lightwave converter. Using the 83440- 60009
lightwave converter power supply adapter, the 87421A becomes
a compact convenient power supply for use with the lightwave
converter.
Figure 1 87421A and 87422A Power Supply