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MERLIN LEGEND Communications System Release 5.0
System Manager’s Guide
555-650-118
Issue 1
June 1997
System Components
Page 3-33Adapters
3
You can add one or two DSSs to the MLX-20L or MLX-28D telephone to provide
150 (3 pages for each of 50 buttons) or 300 (3 pages for each of 50 buttons for
each of 2 DSSs) of additional extension buttons. You cannot attach a DSS to an
analog DLC; however, the MERLIN II System Display Console provides a built-in
DSS, and Auto Dial buttons can be programmed on BIS phones for rapid access
to extensions.
Keep these facts in mind if you need to work with DLCs:
■ You can connect an analog DLC to an analog extension jack on either a
008 or a 408 analog multiline telephone module; an MLX DLC connects to
a digital extension jack on a 008 MLX or a 408 GS/LS-MLX module.
■ When you assign both DLCs and QCCs in Hybrid/PBX mode, the
maximum combined number of system operator positions is eight; no more
than four can be QCCs. You can assign a maximum of two DLCs per MLX
or analog module.
■ Only multiline telephones that are connected to the first and fifth extension
jacks on MLX or analog modules can be assigned as DLCs. This includes
DLCs assigned as calling group supervisors and Call Management System
(CMS) supervisors. CMS must be connected to two extension jacks
programmed to support analog DLCs.
■ You can use an MLX-20L telephone set up as a DLC for system
programming if you connect it to the first or fifth extension jack on the first
MLX module and then designate that jack for system programming.
Adapters 3
This section describes the adapters that connect adjuncts to the system and to
telephones. System adapters connect directly to the control unit; telephone
adapters connect adjuncts to telephones.
System Adapters 3
Four system adapters connect directly to the control unit: a channel service unit
(CSU), the Loop-Start Trunk Adapter, the PagePal™ paging access adapter, and
the Universal Paging Access Module (UPAM).
A
channel service unit
(
CSU
) is the interface between the 100D module and the
Digital Signal 1 (DS1) T1 facility provided by the telephone company.
The Loop-Start Trunk Adapter, UPAM, and PagePal connect loudspeaker paging
systems. The PagePac® Plus loudspeaker paging systems require no system
adapter.
Installation and operation of these adapters, as well as planning for them, is
handled by Lucent Technologies.