Use first mode
12Vcc relay connection to open collector output
This is the simplest way to connect an open collector output that closes to negative. On ALM-
6815/6814 the transistor is always on. The open collector output is turned off by the total lack
of power supply or locking the device. This affects the absorption of the device of about 20mA
(the absorption varies depending on the type of relay used).
Note
: In the operation of the concentrator on BUS, all these reports are made automatically
by the central management ALM-6800. This connection is used only for stand-alone mode.
Use second mode
Direct connection of the open collector output on a generic alarm system input
You can connect the open collector output OCF directly to an alarm input of any burglar alarm
or telephone dialer that has the functional zones to negative. To test this, just check on the
Central, the dialer, or expansion of inputs, the continuity between the common alarm inputs
and the negative supply. If there is continuity, then you can connect the OCF as the diagram
above. 0V is any negative power of the concentrator ALM-6815 / 6814 (for convenience use
the negative power supply terminal X7 described on next page). Otherwise avoid this mode of
connection.
Note
: In the operation of the concentrator on BUS, all these reports are made
a
utomatically
by the central management ALM-6800. This connection is used only for stand-alone mode.
Installation and Programming Manual V1.2
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