Telephone Adjuncts - AT&T MERLIN LEGEND System Reference Manual

Hardware

Telephone Adjuncts

Direct Station Selector
For more information on programming
Page buttons and the Messaging
feature, see the direct-line console or
queued call console operator's guide.
5-38 Adjuncts
Telephone adjuncts connect directly to a telephone or through an adapter.
The Direct Station Selector (DSS) is an optional adjunct that can be connected
to an MLX-20L or an MLX-28D telephone. It enhances the capabilities of both
DLCs and QCCs and, when connected to the MLX-20L telephone, facilitates
programming.
A DSS has 50 buttons with lights that can be programmed with:
extension numbers
line/trunk numbers
pool dial-out codes
calling group extension numbers
paging group extension numbers
Park zone access codes
Automatic Route Selection (ARS) access codes
Remote Access dial code
Listed directory number (the extension for the QCC queue-Hybrid/PBX
mode only)
These buttons are used by a system operator for one-touch dialing and call
transfer. Ten additional buttons are located at the bottom of the DSS.
The 50 numbers programmed onto the DSS are considered a "page." The DSS
can have three pages of numbers, for a total of 150 numbers per DSS. Two
DSSs connected together increase this capability to 300 numbers. (If two DSSs
are connected, page one has the first set of 100 numbers, page two has the
second set of 100, and page three has the third set.)
Three of the 10 lower buttons on the DSS are resewed as Page buttons to
provide access to the different pages. The range of the numbers on the pages
can be programmed to begin with any number up to 9950, but the default for
the beginning numbers is 0, 50, and 100 respectively for the three pages. A
fourth button is reserved as a Message Status button, which, when pressed,
changes the indication of the DSS button lights from telephone use to
Messaging. The other six buttons on each DSS are for future use.
Each control unit carrier provides enough power for two system operator
consoles when each console has only one DSS. Additional consoles on the
same carrier must have local power for DSSs. To power a console equipped
with one DSS and an MFM, the KS22911L1 power supply is adequate. If there
are two DSSs connected, a 329A wall power unit must be used. If the control
unit carrier is already serving two consoles, each with a DSS, a third console
connected to the same carrier also requires the 329A power unit.
Note: DSSs are shipped without local power supplies, which, if required, must
be ordered separately.