2N Lift1 Compact, Руководство пользователя

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2N TELEKOMUNIKACE a.s., www.2n.cz
®
Recovery mode
switching
connector
If there is a - connection 2N Lift1
®
2N Lift1
®
Service Tool
problem, put the jumper on this connector to switch in 2N Lift1
®
to the recovery mode for firmware upgrade.
Connect the button 2 contacts for 5 seconds to reset the factory
values. It is equivalent to parameter 999 and can be used if the
service password gets lost.
*) These terminals are safely electrically isolated from the telephone line.
**) Extending module terminals. The blocking module can be mounted if switch 2 is
not installed.
2N Lift1 Connection to Telephone Line
®
2N Lift1
®
works regardless of polarity and line parameters (refer to Technical
Parameters). Connect it using the LINE terminals. A great advantage of is 2N Lift1
®
that it requires no additional power supply for its function. Refer to Connecti 2N Lift1
®
on Methods for PSTN/PBX/GSM connection details.
ALARM Connection – Contact Control
Connect the button contacts to the ALARM terminal leaving the terminal in the
lower position.
The button has both the NO and NC contacts. With the NC contact, switch the
ALARM INPUT jumper into the NEG position.
ALARM Connection – Voltage Control
Slide the ALARM terminal out and put it in the upper position to ensure the
required telephone line isolation.
Activate connection by voltage connection or disconnection. With voltage
disconnection, switch the ALARM INPUT jumper into the NEG position.
Safety
Make sure that the ALARM button is safe – keep the isolation distance of
1.5 mm and breakdown voltage of 1500 V at least. Never connect the
button contacts to any other circuits. If you cannot meet these conditions,
use voltage control.
Tip
Use 12 - 24 V DC voltage of any polarity. Make sure that the voltage
supply is backed up against power failure.