Communication solutions for power utilities
1U SHELF TYPE MAS-2
WITH ASYNCHRONOUS PROGRAMMABLE MODEM MAFP - Rev. 9 (January 2018)
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Test devices
Line loop, data loop and permanent sending of
test signals, logical level "0", "1" or alternate
sequence of "0" and "1", generating signal
RTS internally.
The selection is carried out by means of
microswitches located on the front plate
Signalling
By optical indication:
- State of the logical signals of the interface
- Realization of some kind of test
- Realization of line and data loops
- Equipment status
- Indication that the modem is configured to be
used in Power-Line Carrier terminals or in
MAS-2 shelves.
By relay with voltage-free changeover contact:
- General alarm
Protection against electrostatic charges
IEC 870-2-1 level 4.
8 kV. Discharges by contact
1.2.5
Power supply
Input range
48 V
DC
20%.
88-260 V
DC
or V
AC
Insulation voltage
IEC 870-2-1 class 2.
1 kV
rms
/50 Hz/1 min
Impulse voltage
IEC 870-2-1 class 2.
2 kV
p
(1.2/50
s)
Fast transient bursts
IEC 870-2-1 level 3.
2 kV
p