Accessory E1
INTRODUCTION
The ACC-E1 power supply module is an accessory card that provides the UMAC backplane with system
operating power.
This ACC-E1 has an AC input connector to the switching power supply and provides DC outputs to the
UMAC control system via the UBUS backplane. The ACC-E1 also has a terminal block connector that
provides the reg5Vdc and ±15Vdc that can be used for general purpose DC power to other
components in the system
The ACC-E1 power supply also comes pre-configured for remote voltage sense on the 5Vdc bus: A
function that has been installed on the UMAC backplanes since their inception. LED’s on the front panel
indicate the presence of +5Vdc, +15Vdc, and –15Vdc.
The ACC-E1 power supply consists of a commercially available power supply mounted to a motherboard
that connects the DC power to the UBUS backplane board.
Introduction
1
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