Toshiba Strata DK 24, Installation And Maintenance Manual

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8-12
INSTALLATION-PERIPHERALS
SECTION 400-096-208
SEPTEMBER 1992
for telephone system applications may have
this protection built-in and do not require the
transformer. (Consult the documentation pro-
vided with the music source.)
3) Cut W5 on the PEKU or W7 on the PESU PCB
that the BGM source is connected to. There is
no strap to cut on the PSTU.
4) Using the BGM source’s volume control, ad-
just the BGM volume to the desired level while
listening to BGM via a telephone speaker and/
or the external page speakers. When BGM is
sent to external speakers via a PIOU or PI-
OUS or PEPU PCB, use the external amplifier
volume control to balance the BGM and page
volume levels.
3.24 External BGM Installation. The external
BGM options are closely associated with the
external paging options. Refer to Paragraph 6 for
external paging amplifier installation.
4 RELAY CONTROL OPTIONS AND
DOOR LOCK CONTROL
4.00 Two relays are provided on the PIOU, PI-
OUS, and PEPU PCBs to control the operation of
peripheral equipment (see Figures 8-8 and 8-9):
•
External Page/Door Lock Relay (DET/DER)
•
Night Transfer/Music-on-Hold Relay (NHT/
NHR)
4.01 Each relay may be configured to provide
one of two possible control functions. Addition-
ally, each relay may be configured as normally
open (MAKE) or normally closed (BREAK). Elec-
trical specifications for the relay contacts are as
follows:
Voltage:
•
24VDC maximum
Current:
•
1 ampere maximum
CAUTION!
Do not connect relays directly to 120VAC
power source.
NOTE:
Refer to the Programming Procedures, Sec-
tion 400-096-300, as necessary when in-
structed to program the PIOU, PIOUS, or
PEPU in the following paragraphs.
4.10 External Page/Door Lock Relay Options
with PIOU, PIOUS, or PEPU.
4.11 The External Page/Door Lock Relay may be
programmed for either the external page function
or the door lock control function. (Refer to Figures
8-8 and 8-9.)
4.12 When configured in Program 77-1 for the
external page function, the relay controls an exter-
nal music source connected to the PIOU, PIOUS or
PEPU to provide Background Music (BGM) over
external speakers. When a paging announcement
is made over the external speakers, the external
page relay mutes the BGM.
4.13 When configured in Program 77-1 for the
door lock control function, the relay controls an
external door lock. When a door lock button at a
digital or electronic telephone is pressed, the door
lock control relay unlocks the door for 3 or 6
seconds, as specified in programming.
4.14 External Page Control. Configure the PIOU,
PIOUS, or PEPU for the external page mute func-
tion in accordance with the following steps: (Refer
to Figure 8-8 or 8-9.)
1) Access Program 77-1. Set LED 07 to OFF to
configure the External Page/Door Lock Relay
for the external page function.
2A) If using a PIOU or PEPU, set the jumper plug
P10 on the PIOU or PEPU jumper plug to the
MAKE or BREAK position as required:
•
MAKE—Shorts the normally open con-
tacts (pins 7 and 32) when external page
is activated.
•
BREAK—Opens the normally closed
contacts (pins 7 and 32) when external
page is activated.
2B) If using a PIOUS, solder the jumper W1 on the
PIOUS to the MAKE or BREAK position as
required:
•
MAKE—Shorts the normally open con-
tacts (DET and DER) when external page