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DTI 2000 Manual e EDITED.doc 3
Controls and Connections
front view
1. POWER indicator
The POWER LED lights when the DTI 2000 receives power input from the supplied power supply
unit, which allows worldwide connection and use because it accepts input voltages between 85V
AC and 250V AC.
2. SEIZE / DROP key (SELECT)
This key allows manually accepting or cancelling phone calls and is mostly used for testing. When
an incoming phone call is present (ringing), pressing the SEIZE / DROP key establishes the
connection (picks up). Pressing the SEIZE / DROP key again cancels (hangs up) a live connection.
Since the DTI 2000 automatically picks up any incoming call respectively automatically hangs up
when the remote call is terminated, this key is basically not needed during normal operation.
3. DROP and SEIZE indicators
The red DROP LED indicates that there are no live connections (i.e. the DTI 2000 is on-hook).
The green SEIZE LED indicates that the DTI 2000 established a connection to the calling party
(i.e. the DTI 2000 is off-hook). The DTI 2000 automatically connects to incoming phone calls.
Using the internal DIP-switch S202 allows specifying the number of rings prior to accepting a call.
4. TALK indicator
The orange TALK LED lights whenever the DTI 2000 is in announcement mode (i.e. when an
announcement into a single or several zones of the PA-system has been initiated via telephone
connection).
5. LEVEL control / meter bars
Audio signals that are transmitted from the DTI 2000 to the DPM 4000 System Manager can be
monitored using the TO PAGING MANAGER meter bar. Level adjustment is possible via the
associated LEVEL control on the front panel using a small screwdriver. The level setting range is
between ***dB (counter clockwise stop) and ***dB (clockwise stop).
Currently, the TO TELEPHONE indicator and the associated level control are not used.