The combined
PCBs (Release
(Release 2) or
RCTUC and one RRCS on RCTUD).
(1-3) has up to 24 circuits (one RRCS on
(Release 3).
There are two versions of RCTUC:
and
can be used with
or
can be used
Feature Key-only one slot is
on the
card
RKYS-1 (Works with all RCTU processors
to
provide auto attendant.)
with RCTUD 1,
and
RKYS-2 (Works with all processors except
and
to
provide auto
attendant and ACD.)
Each of these units supports a distinct number of
cabinets, stations, and lines. The RCTUA
(1
and 3)
PCB can support only one cabinet, and up to 32
stations or 16 CO lines. The
and
PCBs can support up to two cabinets,
and up t o 80 stations or 48 CO lines. The
and
PCBs
operate together to support up to six cabinets, and up
to 240 stations or 144 CO lines.
Additionally, each
of
the common control units can
support a separate set of features. Refer to
Chapter I-Configuration for more common control
unit capacity and feature information.
Each
of
the common control units (except RCTU BB)
may be equipped with an RRCS (4, 8, or 12) to
interpret Dual-Tone Multi-Frequency (DTMF) signals
transmitted from
lines and standard telephone
ports. The common control units also provide an
interface (along with a volume control) for a
hold
Music (BGM) source.
RCTU controls, indicators, and interface connectors
are shown in Figure 4-4 through 4-14 and described in
Table 4-1 through 4-1 1.
4.3.1 Common Control
Unit
Hardware
The common control units (RCTUA,
RCTUB,
and
support the following
hardware options:
Options
Internal Options
DTMF receiver unit (RRCS-4, RRCS-8,
RRCS-12)
There are three
the RRCS-4 has four DTMF
receiver circuits; the RRCS-8 has eight receiver
circuits; and the RRCS-12 has 12 receiver circuits.
The RCTUAI and
can support up to 12
DTMF receiver circuits; the RCTUB,
and
RCTUBA have up to 12 circuits; and the
RKYS-3 (Works with all processors except
and
to
provide auto
attendant, ACD, and
(Works with
and
processors only
to
provide all
features plus the Open Architecture
capability for ACD calls.)
Note:
is available with
Release
and above.
Install the appropriate RKYS
2A, 3A or 4A) per
Figure 4-3, to enable the built-in Auto Attendant,
Automatic Call Distribution (ACD), Management
Information System (MIS) to ACD, and/or Open
Architecture for ACD.
IMPORTANT!
It is not necessary to run any special
programs
Program
03)
when RKYS is
installed. RKYS can be installed before or
after system initialization, and, before or after
the customer database is entered. The
provided by the RKYS are enabled
immediately when RKYS is installed.
However, configuration programs for AA and
ACD must be run for the feature to operate.
External Option
Music-on-hold
Music (BGM)
Each of the common control units (except RCTUD and
RCTUBB) has a trim potentiometer
to adjust the
volume
of the
source connected to the
RCA jack interface, which is also on the
common control unit. The volume control
potentiometer and the
interface are on the
RCTUA (1
or
3),
RCTUB (1 or 2), RCTUBA and
RCTUC PCBs.
Volume Control
January
1996
4-4
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