Direct Station Selectors - AT&T MERLIN LEGEND System Reference Manual

Features
2-118 Direct Station Selector
Figure 2-5 Direct Station Selectors
The range of 50 or 100 extension numbers assigned in system programming to
DSSs is considered a "page." A single DSS can have three pages of extension
numbers for a total of 150 extension numbers. When two DSSs are connected,
this capability is increased to 100 extension numbers per page for a total of 300
extension numbers.
The beginning number for each page is assigned via system programming (by
using the SysRenumber option). When the operator presses a Page button, the
page of the DSS corresponds to a range of 50 (for a single DSS) or 100 (when
two DSSs are connected) extension numbers. The factory settings for Page
buttons are as follows: the Page 1 button begins with extension 0, the Page 2
button begins with 50, and the Page 3 button begins with 100.
Each Page button can be programmed to begin with any extension number that
is a multiple of 50 in the range of 0-9950. However, to speed call handling, it is
recommended that the assignments be sequential—the range starting with the
lowest extension number should be assigned to Page 1, the range starting with
the next higher extension number should be assigned to Page 2, and the range
starting with the highest extension number should be assigned to Page 3.
Each of the 50 DSS buttons corresponds to one of three extension numbers. The
specific extension number is determined by the Page button that the system
operator presses. For example, if the first extension number for the Page 1
button is programmed to be extension 100, the DSS buttons and associated
LEDs on a single DSS correspond to extensions 100 to 149. The specific
extensions represented by each DSS button are assigned from top to bottom,
left to right as shown in Figure 2-6.