«NPK Morsvyazavtomatica» LLC
Operating manual
Page 3
INTRODUCTION
This operating manual (hereinafter referred to as OM) is intended to describe the
structure, operating principles, technical specifications and service of unregulated power
supply units PS-103 and PS-103-20 (hereinafter referred to as the Product, PSU).
In addition to the instructions given in this document, the safety regulations and
rules applicable in the field shall be observed.
Only those who have read and understood this document and those who have had
special training shall be permitted to operate with the PSU according to the applicable
regulations.
Terms and abbreviations:
PSU – power supply unit;
SC – short circuit;
OM – operating manual;
TS – technical service;
CL –check list;
SB – storage battery;
LFSG – large fine-pored silica gel granular.