4.
12
(MT13 - En 2015)
5) Set OFF the microswitch 1 of SW1. This
operation ends the programming phase of
the numerical interval F1.
6) If required, proceed in a similar way to
program the other 9 numerical intervals
repeating the points from 2 to 5 and paying
attention to set properly the microswitches
of SW1 according to the numerical interval
to be programmed (see table 4.4).
7) Set OFF all the microswitches of SW1 and
exit the programming mode moving jumper
J2 from position 2-3 to 1-2; red LED comes
back flashing slowly.
8) Verify the correct operations of door stations
and of intercoms/videointercoms connected
to line L2 of the art.DM2421.
Memory erasing
To erase all the data stored in the memory of
the device it is necessary:
- move the jumper J2 from position
1-2 to 2-3; red LED starts flashing
quickly;
- set ON the microswitches 1,2 and
4 of SW1 and leave OFF the
microswitch 3 of SW1;
- wait for about 4 seconds; red
LED lights up continuously;
- within 4 seconds set ON the
microswitch 3; red LED turns OFF
for about 2 seconds and than
starts again flashing quickly;
- at this stage all the data have
been erased;
- set OFF all the SW1 micro-
switches;
- move the jumper J2 from position
2-3 to 1-2; red LED comes back
flashing slowly.
OPERATION
The device has one input line (LP) and two
output lines (L1 and L2); data and audio signals
are always distributed over three lines, while
the video signal coming from the LP line is
selectively switched to line L1 or L2, depending
on how the device has been programmed.
The programming procedure requires to
indicate only the addresses of devices
connected to line L2; it is automatically
assumed that all the other addresses belong to
line L1.
When a device belonging to line L2 is called,
the DM2421 distributor sends the video signal
on line L2, disconnecting line L1; the video
signal of the remaining calls is sent to line L1.
J2
J2
J2
J2
1-2
2-3
2-3
1-2
2
1
1
2
3
2
2
3
+
+
+
ON
ON
1
1
2
2
3
3
4
4
SW1
SW1
VC1
(11)
VC5
(15)
VC6
(34)
ON
1 2 3 4
SW1
+
E
NTERING THE PROGRAMMING MODE
E
XIT THE PROGRAMMING MODE
=Echos-Exhito
=Echos-Exhito
=Zhero-myLogic
=Zhero-myLogic
Compact
Compact
F1
(11, 12, 13, 14, 15)
F2
(34)
+
+
+
ON
1 2 3 4
SW1
CT
(18)
F3
(18)
Example programming of 3 intervals (F1÷F3) for one distributor art. DM2421.
F1 = video intercoms with user addresses from 11 to 15.
F2 = video intercom with user address 34
F3 = intercom with user address 18
ON
1 2 3 4
ON
1 2 3 4
ON
1 2 3 4
3 2 1
3 2 1
SERVICE MODULES
Table 4.4.
Position of SW1’s microswitches and
related programming function
Position of SW1’s
Programming
microswitches
function
ON
1 2 3 4
ON
1 2 3 4
ON
1 2 3 4
ON
1 2 3 4
ON
1 2 3 4
ON
1 2 3 4
ON
1 2 3 4
ON
1 2 3 4
ON
1 2 3 4
ON
1 2 3 4
ON
1 2 3 4
numerical interval F1
numerical interval F2
numerical interval F3
numerical interval F4
numerical interval F5
numerical interval F6
numerical interval F7
numerical interval F8
numerical interval F9
numerical interval F10
memory erasing
