Specifications

4
(b) Speaker to phone level: This is the most
critical level; set the volume at the lowest
practical level (it is better to set it too low,
than too high).
2. All Call Level:
The All call level should be set to produce the
same audio level as the phone to speaker page
control.
3. Background Music Levels:
There are two volume controls provided for
background music adjustments: Zones 1-5 and
Zones 6-9.
It is important that the two background music
controls be used to set the music levels in the system.
Adjust these controls after all other system volume
levels have been set.
Repeat Alert Tone
A wire jumper controls the 15 seconds alert tone.
The repeat alert tone is disabled when the jumper is
in place and is enabled by cutting or removing the
jumper.
BACKGROUND MUSIC
CONTROL ZONES 1-5
BACKGROUND MUSIC
CONTROL ZONES 6-9
ONE-WAY ALL CALL
VOLUME
50 PIN MALE
CONNECTOR
S
PK-TO-PHONE
T
URN CLOCKWISE
T
O INCREASE
R
ECEIVE VOLUME
PHONE-TO-SPK
TURN CLOCKWISE
TO INCREASE
TRANSMIT VOLUME
Figure 7 - User Control Locations
OPERATION
General Description
To make a voice page, go off-hook and dial the
number of the desired zone or station. Dial tone will
be broken after the first number is dialed. A one
second ringback tone will indicate that the called
zone is being signaled. After the tone, proceed with
the page. If using talkback speakers, the called party
may answer handsfree. If speaker cancel is wired
when called party goes off hook, speaker will be
turned off. Personal signaling: When initiating a call,
depress the "*" and then the station number. A
double tone will be sent to the called speaker. No
voice announce or talkback will be possible.
To dial a new number (tone dial only), depress the
"#" button. The speaker for the first number will be
disconnected and dial tone returned to calling party.
Dial new number and page.
NOTE: If "#" is depressed after the speakers have
been inhibited, additional numbers may still be
dialed. A tone will signal the called party but no
voice announce or talkback will be possible.
User Instructions
In order to achieve maximum performance from this
system, the user should receive the following
operating instructions.
A. The calling party should speak directly into
telephone mouthpiece and avoid speaking too
softly.
B. The called party must wait (approximately 1/2
second) before responding to the calling party.
Circuit Description
General Method of Operation: This unit provides
dial intercom access provisions to appropriately
interface with the telephone system being used.
Two-way amplifier conditions the speech from the
telephone system Tip and Ring, and provides a low
impedance, low level output to the desired speaker
via conventional telephone wiring, i.e., house cable
or station wire.
Detailed Description: When accessing the
V-1109RTHF, the telephone system will close the
Tip and Ring to form a loop. Loop sense circuitry
then operates relay and logic circuits and returns dial
tone and lamp battery to the telephone set. The logic
circuit receives dialing information and operates
relays and circuitry to supply splash tone and voice
connection to the station selected. On 1A2 systems,
when the called or any other party goes off-hook on
ICM path, the presence of two resistance ground
cancels or turns off speakers (if inhibit resistors are
wired). "Handsfree mode" can only be restored by
terminating call and redialing station. After paging,
the unit automatically disconnects on release of the
telephone system.