Hardware manual

Issue 8 Electra Elite
6 - 2 Installing Electra Elite Multiline Terminals
2.2 DTU-8-1 TEL
This digital nondisplay Multiline Terminal has eight programmable
line keys (each with a 2-color LED), eight function keys, a built-in
speakerphone, headset jack, a large LED to indicate incoming calls
and messages, and compatibility with ADA-U, APA-U, APR-U,
CTA-U, CTU(C), CTU(S), HFU-U, or VDD-U Unit.
The DTP-8-1 TEL is comparable and can also be used with the
Electra Elite system.
A maximum of 119 DTU/DTP-8-1 TELs can be installed in the
Electra Elite 192 system.
The combined total of all Electra Elite Multiline Terminals that can
be installed in an Electra Elite 192 system is 120.
Figure 6-2 DTU-8-1 TEL Multiline Terminal