Communication solutions for power utilities
1U SHELF TYPE MAS-2
WITH ASYNCHRONOUS PROGRAMMABLE MODEM MAFP - Rev. 9 (January 2018)
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LED STATUS
Three-coloured. The LED lights in
green
to indicate that
there are no alarms.
The LED lights
permanently in red
to indicate general
alarm, that is, when the level of the received signal falls
below the nominal level in 14 dB. It must be taken into
account that there is an hysteresis of 3 dB.
The LED
flashes in red
to indicate incorrect configuration
(the selected modem is inconsistent).
The LED lights in a
mber
to indicate that the equipment is in
firmware upgrade mode.
4.1.3
Adjustments and test points
XMT ADJUSTMENT
potentiometer
Continuous adjustment of the transmission level within
the limits of the range established by jumper S4.
XMT MEASUREMENT
test points
Signal level in transmission. When the modem is
transmitting, 12 V
pp
should be obtained in these points
regardless of the transmission-level range.
RCV ADJUSTMENT
potentiometer
Adjustment of the receiver sensitivity within the limits of
the range established by jumper S3.
RCV MEASUREMENT /
Ground test points
Signal level in reception.