1-10. DESCRIPTION OF ELECTRONIC STATION (cont)
488 CONTROLLER POWER SUPPLY ASSEMBLY 1A2
(1) The 488 controller power supply assembly 1A2 consists of a power supply
programmer (Kepco Model SNR488-8), interface board, four programmer cards (Kepco Model
SN488-B), and drawer slides.
The rack cabinet contains front and rear panel controls,
indicators, electrical connections, and input power circuit fusing.
A ground lead is
installed on the rear panel which connects, to a ground lead attached to a ground
terminal on the electronic station.
The front panel is mounted to a piano hinge and
will swing open after loosening two panel screws.
(2) The POWER ON switch indicator is accessible with the front panel in either
the open or closed position.
The card cage contains eight programmer card guide posi-
tions accessible from the front.
Four card guide positions have programmer cards
1A2A1 thru 1A2A4 installed.
The rear panel contains a connector bus distribution for
each programmer card, IEEE Std 488 HPIB connection, input power connector, and address
An interface board is located inside the rear panel.
(3) The address selector switch is a six-position rocker switch used to establish
either the listen only or addressable mode and to provide interface address.
preset position for the present configuration is a decimal address of -4. The
interface board (an IEEE circuit card) contains a 115/230 vac selector slide switch
and a fused circuit.
(4) Each programmer card contains two electrically common circuits that convert
digital input commands to analog output commands.
Included on each programmer card is
a 115/230 vac selector switch, a fused circuit, and a three-position address selector
switch used to code the location of the programmer card.
(5) The purpose of the 488 controller power supply assembly 1A2 is to interface
with programmable power supply assembly 1A3 and provides an analog output to the
Analog to Digital (A/D) Converter Assembly 2A2A13.
Length 19.00 in
Weight 27 lb
115v ±10v, 60 Hz ±1O Hz