MSA UNICONT PS-203-40, Руководство по эксплуатации, Страница: 5 / 17

Power supply unit
PS-203-40
Page 5 Version 1.0
Figure 1 – The Product
Table 2 describes functional elements and controls of the Product.
Table 2 – Functional elements, controls and LED light indicators of the Product
№
Element
Type, size, identifi-
er
Description
1
Piano type switch
–
Piano type switch to switch on/off power,
with backlight
2 Grounding stud
М5х20
Main grounding element
3
Cable gland
MG-16
Cable gland to connect input and standby
power, loads and alarm
4 MG-25
5 MG-32
Note – See positions (№) in Figure 1.
1.3.2 Power from standby sources or SB is supplied to the Product terminals
ensuring uninterruptible operation of the equipment connected to the Product, see Fig-
ure 2.
Automatic standby power switching occurs in case of the Product failure and
main power failure. If there is no input power, dry contacts relay actuates alarm signal-