Installation; Operation - Valcom V-136RTHF User Manual

Electrical Characteristics
Parameter
Input Imp. T and R
Max. Cable Length:
One Way Page
Talkback Page
Dial Pulses
Tone Signals
Standard DTMF
Frequency
Detect
Interdigital Time 40MS
Environmental
Temperature
Humidity

INSTALLATION

Precautions
All precautions have been taken at the factory to
insure that the equipment functions properly when
installed correctly. Please observe the following
precautions before applying power to the equipment
or the equipment may be damaged and the warranty
voided.
a. Unplug the key system power supply before
connecting any wires or cables from the
intercom connecting block. With power
ON, accidental bridging of two terminals
with a wiring tool may damage electronic
circuits.
b. Do not locate the control unit more than five
feet from the power supply.
c. Do not use a lamp tester to check signals in
the control unit. Use a voltmeter. A lamp
tester when first applied, is a short circuit to
electronic circuits.
d. Do not apply power to the control unit until
all connections have been double-checked.
Limit runs to talkback speakers to not more
than 800 feet. Do not split pairs.
Make all grounds common at power supply.
Limit audio runs to one-way speakers to not more
than 5000 feet. Limit power runs to one-way
speakers to maximum recommended for the particular
speaker type.
Working Limits
600 ohm (incl. inst.)
5000 feet
800 feet
8-12 PPS
60-40 Break ratio " 10%
40MS
o o
0 to 50 C
0 to 85%
Non-precipitating
For off-hook speaker cancel circuit, each ICM "A"
lead must be connected through a 10K 1/4W 5%
resistor to the inhibit input (W/GR) (Refer to Figures
2 and 3). When "called" station or any other party
goes off-hook, the presence of two resistance grounds
cancels or turns off speaker. "Handsfree" mode can
only be restored by terminating call and redialing
station.
Mounting
Mount the V-136RTHF on a 7" KTU mounting, relay
rack or on a wall. (The presence of a large
"magnetic" field induced by some power supplies
may cause a loud 60 cycle hum on talk paths. To
clear or reduce hum, mount control unit at least 12"
from power supply).
Connections
Fasten a 25 pair cable to the unit and terminate all
leads on a 66 type block per Figure 1, 2 or 3.
CAUTION: Do not attempt to wire one group (10-29
or 0, 5-9, 30-39) for both bell/buzzer and voice page.
Bell/Buzzer Connections
a. When using 10-29 for bell/buzzer signaling,
connect audible battery (BR/V) to S1 IN
(V/O).
b. When using 0, 5-9, and 30-39 for bell/buzzer
signaling, connect audible battery to S2 IN
(O/V).
c. Connect bell/buzzer return leads to audible
ground from power supply.
Voice Page Connections
a. When using 10-29 for voice page, connect
speaker out (V/G) to S1 IN (V/O).
b. When using 0, 5-9 and 30-39 for voice page,
connect speaker out (V/G) to S 2 IN (O/V).
c. Connect speaker return leads to speaker
common (G/V).
Programming
Refer to Figure 1 for programming options.

OPERATION

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 the called zone is
being signaled. After the tone, proceed with the page.
The called party may answer handsfree. If the
speaker cancel circuit is wired (refer to Installation),
when called party goes off hook, the speaker will be
turned off.
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