External Speaker Unit (Hesb) Options - Toshiba Strata DK 280 Installation Manual

n MAKE-Shorts the normally open contacts
(pins 9 and 34) when the night relay is
activated.
n BREAK-Opens the normally closed contacts
(pins 9 and 34) when the night relay is
activated.
- or -
If using a PIOUS, solder the jumper W2 on the
PIOUS to the MAKE or BREAK position, as
required:
MAKE-Shorts the normally open contacts
(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 6-7 and 6-8 for wiring/
interconnecting details. Connect the PIOU,
PIOUS, or PEPU to the MDF as required for the
night relay function.
Note:
Door phones programmed to ring over
external page in the NIGHT mode (Program
77-l) do not activate the NHT.
MOH Relay Control
Configure the PIOU, PIOUS, or PEPU for the MOH
relay function in accordance with the following steps:
(Refer to Figures 6-7 and 6-8.)
1. Access Program 77-l. Set LED 05 to ON to
configure the Night/MOH relay for the MOH relay
function.
2. If using a PIOU or PEPU, set the Pli jumper plug
on the PIOU or PEPU to the MAKE or BREAK
position, as required:
n MAKE-Shorts the normally open contacts
(pins 9 and 34) when any CO line is on hold.
n BREAK-Opens the normally closed contacts
(pins 9 and 34) when any CO line is on hold.
- or -
If using a PIOUS, solder the W2 jumper on the
PIOUS to the MAKE or BREAK position, as
required:
H MAKE-Shorts the normally open contacts
(NHT and NHR) when any CO line is on hold.
q BREAK-Opens the normally closed contacts
(NHT and NHR) when any CO line is on hold.
3. Refer to Figures 6-7 and 6-8 for wiring/
interconnecting details. Connect the PIOU,
PIOUS, or PEPU to the MDF as required for the
MOH Relay function.
6.4 External Speaker Unit (HESB)
Options
Strata DK280 systems provide three options utilizing
an HESB:
loud Ringing Bell Option
The loud ringing bell option allows the voice first or
ringing signal tone to be amplified without the use of
other manufacturers' equipment. The voice first and
signal tone can be amplified on all electronic and
digital telephones equipped with HHEU PCBs and
HESB. (Refer to Chapter 5-Station Apparatus.) 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.
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.
Talkback Amplified Speaker Option
The talkback amplified speaker option allows a
talkback speaker to be provided in areas where a
telephone is not needed. In this configuration, the
HESB is connected to the PIOU, PIOUS, or PEPU
6OOQ (duplex) output and is used as the amplifier and
speaker. A door phone unit (MDFB) is connected 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 and not as the normal door phone).
Note:
The PIOU, PIOUS, and PEPU 6OOQ is a two-
way (duplex) page output compatible with
most commercially available talkback
amplifiers-door phone not required for
talkback.
January 1996
6-15