External Speaker Unit (Hesb) Options; System Hardware Requirements - Toshiba Strata DK24 Installation And Maintenance Manual

relay is activated.
7B) If using a PIOUS, solder the jumper W2 on the
PIOUS to the MAKE or BREAK position, as
required:
•
MAKE—Shorts the normally open con-
tacts (NHT and NHR) when the night
relay is activated.
•
BREAK—Opens the normally closed
contacts (NHT and NHR) when night
relay is activated.
8) Refer to Figures 8-8 and 8-9 for wiring/inter-
connecting details. Connect the PIOU, PI-
OUS, or PEPU to the MDF as required for the
night relay function.
NOTE:
Door phones programmed to ring over exter-
nal page in the NIGHT mode (Program 77-1)
do not activate the Night Transfer Relay.
4.25 MOH Relay Control. Configure the PIOU,
PIOUS, or PEPU for the MOH relay function in
accordance with the following steps: (Refer to
Figures 8-8 and 8-9.)
1) Access Program 77-1. Set LED 05 to ON to
configure the Night/MOH relay for the MOH
relay function.
2A) If using a PIOU or PEPU, set the P11 jumper
plug on the PIOU or PEPU to the MAKE or
BREAK position, as required:
•
MAKE—Shorts the normally open con-
tacts (pins 9 and 34) when any CO line is
on hold.
•
BREAK—Opens the normally closed
contacts (pins 9 and 34) when any CO
line is on hold.
2B) If using a PIOUS, solder the W2 jumper on the
PIOUS to the MAKE or BREAK position, as
required:
•
MAKE—Shorts the normally open con-
tacts (NHT and NHR) when any CO line
is on hold.
•
BREAK—Opens the normally closed
contacts (NHT and NHR) when any CO
line is on hold.
INSTALLATION-PERIPHERALS
3) Refer to Figures 8-8 and 8-9 for wiring/inter-
connecting details. Connect the PIOU, PI-
OUS, or PEPU to the MDF as required for the
MOH Relay function.
5 EXTERNAL SPEAKER UNIT (HESB)
5.00 STRATA DK systems provide three options
utilizing an HESB:
5.01 Loud Ringing Bell Option. The Loud Ring-
ing Bell option allows the voice first or ringing signal
tone to be amplified without the use of other manu-
facturers' equipment. The voice first and signal
tone can be amplified on all electronic and digital
telephones equipped with HHEU PCBs. (Refer to
Section 400-096-207.) The HESB automatically
turns off once the ringing call or voice first has been
manually answered from the electronic or digital
telephone. This turn-off feature prevents audio
feedback problems.
5.02 Amplified Speaker Option. The Amplified
Speaker option allows the HESB to be configured
as a paging speaker. The HESB is connected to the
PIOU, PIOUS, or PEPU 600-ohm page output to
provide an amplified external speaker.
5.03 Talkback Amplified Speaker Option. The
Talkback Amplified Speaker option allows a
talkback speaker to be provided in areas where a
telephone is not needed, such as in conjunction
with a door phone. In this configuration, the HESB
is connected to the PIOU, PIOUS, or PEPU 600Ω
(duplex) output and is used as the amplifier and
speaker. The door phone unit (MDFB) is con-
nected to the HESB, and serves as a microphone
to provide talkback operation (the MDFB push-
button is inoperative, and the unit serves only as a
microphone for talkback).
NOTE:
The PIOU, PIOUS, and PEPU 600 Ω (duplex)
page output is compatible with most commer-
cially available talkback amplifiers.

5.10 System Hardware Requirements

5.11 System hardware requirements vary depend-
ing on the HESB option selected. Refer to the
8-17
SECTION 400-096-208
SEPTEMBER 1992
OPTIONS