14
THE POWER SUPPLY OF THE SYSTEM
The MS48IP system has been designed to operate on 230 VAC, 50 Hz. mains supply.
Two on/off switches are available at the lower side of the cabinet for controlling the
power supply of the system, one of which controls the battery input and the other the
mains input. At the same location, there is also a fuse of F-type, 1A/250 VAC, in the
fuse compartment next to the on/off switch, as a frontline protection. That fuse is used
to protect the exchange against unexpected voltage/current variations that might occur
on the mains.
Figure - 11
The system operates on 230 VAC 50 Hz mains input. 2 x 15 VAC outputs that are
required by the SPS48 Power Supply Module are generated by the Power Transformer
PWT48 by using the mains voltage.
The PWT48 Power Transformer is located under the plastic inner cover on the upper
left side of the CBN48C
cabinet, together with the RNT48 Ringer Transformer that
generates the 64 Vrms ringer signal.
Summary of Contents for MS48IP
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Page 18: ...10 Figure 9 The dimensions of the EXP48 2 6 are 14 5 cm x 16 5 cm and it weighs 0 3 kg...
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