Two-Co Line External Amplified Conference - Toshiba Strata DK 280 Installation Manual

3. Connect the paging amplifier output to
the "M" contact's PIOU relays Ki - K4
and the "C" terminal of zone 1 - zone 4
speakers.
4. Connect the BGM music amplifier output to
terminal 23 (PG COMMON) of the PIOU, and to
"C" of zone 1 - zone 4 speakers.
Zone Page with BGM (multiple amplifiers)
This configuration also provides multiple-zone paging
capability, as in Subsection 6.5.2, paragraph 3.
However, separate amplifiers are used for each zone.
Install this option in accordance with the following
steps: (Refer to Figure 6-18.)
<
1.
2.
3.
4.
5.
Connect the inputs from the paging amplifiers to
Pins 13 (SPR) and 38 (SPT) of the PIOU.
Connect the music source to the music amplifier
input.
Connect the paging amplifier outputs to "M" of the
PIOU Relays Kl - K4 and to "C" of Zone 1 - Zone
4 speakers.
Connect the music amplifier output to terminal 23
(PG COMMON) of the PIOU, and to the "C"
terminal of zone 1 - zone 4 speakers.
Connect
zone 1 - zone 4 speakers "A" terminal to
the "B" contact of the PIOU relays Kl - K4,
respectively.
Night Ringing Over Selected Page Zones.
In systems shared by 1 - 4 tenants, each tenant's CO
lines can be assigned to night ring separate PIOU
external page zones. This feature can also be used in
one-tenant systems.
With shared systems, for example, Tenant l's night
ringing CO lines could be programmed to ring PIOU
external page Zones 1 and 2, while Tenant 2's lines
could be programmed to ring Zones 3 and 4. In non-
shared systems, night ringing CO lines can be
assigned to ring all of the zones or just selected
zones.
RCTU A, RCTU B, and RCTU C/D provides four
tenants.
The following programs must be used to assign CO
lines to ring selected PIOU page zones:
Program 78-l-Assigns CO lines, Tenant 1 thru
Tenant 4, that will night ring over PIOU external page
zones.
Program *15-Assigns CO lines to Tenant 1 thru
Tenant 4. Lines are initialized as Tenant 1. RCTUA
and RCTUB provides two tenants, RCTUC/D provides
four.
Program 77-3-Assigns Tenant 1 thru Tenant 4 CO
lines to night ring specific PIOU external page zones.
Program 39-Assigns appropriate Night Transfer and
Tenant Pick-up (for Tenant or Non-Tenant systems)
buttons to electronic and digital telephones.
Notes:
1. See Subsection 6.5.2, paragraph 4 and
Figure 6-17 for PIOU zone paging
installation instructions.
2. Any station can pick up CO lines that
night ring over external page zones by
pressing the Intercom (INT) button and
dialing # 5 9.
6.6 Two-CO Line External Amplified
Conference
Customer-supplied two-way amplifiers can be installed
to amplify two-CO line tandem (DISA, External Call
Forward) and/or conference calls. As many as four
amplifiers (4-RCTUB, and C/D; 3-RCTUA) can be
installed to support up to four of these calls occurring
simultaneously. If three amplifiers are installed, three
simultaneous calls can be supported, and so on. If all
amplifiers are in use, then subsequent two-CO line
tandem calls and/or conference calls will be
unamplified. Each amplifier is connected to two
designated PEKU station ports and will automatically
be switched into a two-CO line connection established
between any CO lines in the system.
Amplified Talk Path
Figure 6-l 9 provides a functional diagram of a two-CO
line amplified conference connection. (An R-TEC
VFR5050 amplifier is used here.) The talk path for the
connection is as follows: outside party l-public
telephone network-CO PCB, CKTX-RCTU-PEKU,
port A-into AMP, CKTA-Out AMP, CKTB-PEKU,
port B-RCTU-CO PCB, CKTY-public telephone
network-outside party 2. This path is two-way so
when outside party 2 talks, the talk level is amplified in
' the reverse direction.
January 1996
6-25