25
2N TELEKOMUNIKACE a.s., www.2n.cz
Description of Terminals and Connectors
Telephone line
Polarity does not matter. Connect a PSTN, PBX or GSM gateway
line directly.
CAUTION – Never connect multiple devices to a
single line!!!
ALARM
t
erminal
voltage
control
*)
12 – 24 V DC
voltage, any polarity
Alarm call activation
contact
control
closing/opening
contact
CANCEL
terminal
voltage
control
*)
12 – 24 V DC
voltage, any polarity
Alarm call deactivation
contact
control
closing/opening
contact
Indicator
terminals *)
Indicators (illuminated pictograms) - up to 24 V / 2× 200 mA,
externally supplied, wiring diagram must be maintained
"Wait" LED
connector
yellow
LEDs are not part of the delivery by default
(except for cable versions).
Connecting an external LED deactivates the
LED on the board.
"Connection
established" LED
connector
green
External
microphone
connector
If an external electret microphone is connected (upon request),
the integrated microphone is disconnected automatically.
Speaker
connector
The speaker is connected to this connector by default.
Induction loop
connector
(optional)
The induction loop is not part of the delivery by default. Install
the loop behind a non-conductive non-metallic cover. Polarity
does not matter.
Notes:
Mounted behind a non-conductive non-metallic cover, the
speaker works as an induction loop.
The output is resistant against short-circuit. The output power
is limited by a resistor.
Lift blocking
contact *) **)
The contact opens whenever a power failure occurs. The lift
arrives in the nearest floor and opens the door. The lift will not go
on until the line function is recovered.
Switch 2 contact
*) **)
The switches are used for variable purposes and are remotely
DTMF-controlled (numeric code). The switches are not designed
for 230 V!
Switch 1 contact
*) **)
Button 2
connector
Button 2 has a closing contact only.
Service connector
Used for connection of
to the
2N Lift1
®
2N Lift1
®
Service Tool
via a USB socket changer (refer to Subs. 3.3 for details).
