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DHS- L Gener al D esc riptio n
2-15
Chapter 2 - Description a nd Installation
Digital Key Telephones
The
DHS-L
supports two proprietary digital key telephones (Enhanced and Executive). All
key telephone models operate on one single twisted pair and provide D/A and A/D
conversion at the terminal. These key telephones support hot key pad for dialing digits at
any time.
Enhanced Key Telephone
The Enhanced Key Telephone is fully equipped for hands-free, speakerphone operation.
This key telephone has a total of 28 buttons, eight buttons are for fixed functions.
Twenty buttons are user-programmable feature buttons equipped and dual color LED
with pre-assigned default settings for quick power up operation. These buttons are
arranged in five rows and four columns. Beginning at the top left button they are
assigned the following default values; Station 201-212, CO line 764-769, HF/Tone and
Message Waiting.
The Enhanced Key Telephone is also equipped with a 12-key Dial Pad for dialing intercom
numbers, system feature codes, and telephone network numbers on CO lines.
Figure 2-12: Enhanced Key Telephone
Each telephone is equipped with an Additional Device Port (ADP) located on the
underside of the phone for user-friendly connection of analog devices (answering
machines, faxes, modems, cordless telephones, etc.). An analog adapter is required for
this port to be equipped for use as an extension of the system.
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