M0041AFM.doc
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o
open
power feed out of defined window
or
PLL-Alarm
or
Temp.-Alarm
o
close
normal operation condition
Output3: This optocoupler output, which is signalling
the ALC condition, represents the same
functionality as LED2.
o
open : ALC-Alarm, ALC active
o
close : normal operation condition
13. Application
In the following two possible supervision applications
are sketched. With the knowledge of the physical and
logical behaviour of the alarming interface (more
details can be derived from the data sheet of the
according miniRepeater) there are a lot more different
applications to suit the individual networks.
13.1.
Repeater Supervision via SMS Transmitter
In this setup, a GSM-based SMS transmitter is
attached to every single miniRepeater. The box
provided includes a GSM modem, an SMS generator
and power supply unit. This box is connected via a
six-wire interface to the miniRepeater. After
configuring the SMS transmitter (keeping the default
values is also possible), the miniRepeater has to be
added in the OMC (via ID No or phone number of the
SIM-card in the modem) and it will be integrated into
the supervision network. For further information,
please refer to the SMS transmitter manual.
Supervision via SMS transmitter
13.2.
Repeater Supervision via Party-Line
In this setup, several miniRepeaters are connected to
a three-wire party-line representing a Wired-OR
functionality of the alarms of a group of
miniRepeaters. If it is not required to distinguish
between the two alarm types, a single two-wire
connection is sufficient. Do not exceed summary
voltage and current limits as stated in chapter
Party-line supervision without SMS transmitter
13.3. Repeater Supervision via Party Line and
SMS Transmitter
In this setup, several miniRepeaters are connected to
a three-wire party line, representing a Wired-OR
functionality of the alarms of a group of
miniRepeaters. If it is not required to distinguish
between the two alarm types, a single two-wire
connection is sufficient. The two or three-wire party
line is connected to the AUX connector of the SMS
Transmitter. Do not exceed summary voltage and
current limits as stated in chapter
. For further information, please refer to
the SMS transmitter manual.
Party-line supervision with SMS transmitter
Heartbeat (output1)
HW Alarm
(
t
t2)
ALC Alarm (output3)
miniRepeater
Heartbeat (output1)
HW Alarm
(output2)
ALC Alarm (output3)
miniRepeater
Heartbeat (output1)
HW Alarm
(output2)
ALC Alarm (output3)
miniRepeater
Heartbeat (output1)
HW Alarm
(output2)
ALC Alarm (output3)
miniRepeater
Summary
Alarm
ALC
Alarm
HW
Alarm
Collector-emitter voltage......50 V max.
Collector current..................20 mA max
Heartbeat (output1)
HW Alarm (output2)
ALC Alarm (output3)
miniRepeater
SMS Transmitter
S
M
S
G
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n
e
r
a
t
o
r
GSM-
MODEM
PSU
