Instruction manual

FREQUENTLY ASKED TECHNICAL QUESTIONS
COMMERCIAL & TELEPHONE PAGING PRODUCTS
SERVICE & MAINTENANCE
QUESTION ANSWER
1
"My customer is upgrading his phone system to
a new digital system. He currently is using your
MZC-144. Will I be able to use this unit on his new
phone system?"
The MZC-144 can only be used with a CO line or a Page
Port
2 "I am using the MZC-144 with a power supply that
is unfiltered and not regulated. There seems to be
a lot of noise when I page and my customer is
unhappy. What is the problem with the MZC-
144?"
The MZC-144 needs a filtered and regulated power
supply. It is recommended that you replace the power
supply with an RPS-2406 and see if that remedies the
problem. In most cases that will clean up the noise you
hear when you use the paging system..
3 "I am trying to upgrade a 60 watt amplifier I
purchased from Wheelock to 100 watts. What is
the
p
art number I need to order?"
Wheelock no longer manufacturers amplifiers.
COMMERCIAL & TELEPHONE PAGING PRODUCTS
INSTALLATION
QUESTION ANSWER
1 "I just completed wiring a MZC-144 and I cannot
get the device to page. I have my power wires
connected to pins 5 & 6 but still have nothing?"
The MZC-144 requires reverse polarity; make sure that pin
5 is your positive (+) and pin 6 is connected to ground (-).
3 " I am installing some ST-C8’s into a drop ceiling.
What can you recommend I mount them to?"
Wheelock makes a product for just such an application. It
is a tile support bridge part number SSB-8
COMMERCIAL & TELEPHONE PAGING PRODUCTS
APPLICATION
QUESTION ANSWER
1 "What is the recommend power supply for the
MZC-144?"
The RPS-2406, which is filtered and regulated, is the
recommended power supply
2 "I need to install a 24vdc 4-amp power supply for
some self amplified paging speakers. What
should I use?"
Although the outputs on the RPS-2440 are rated as two
amps you can parallel them to give you a 4amp 24 VDC
power supply
3 "I need a 3 zone paging device?" The MZC-144 with RPS-2406 power supply
4 "I need an amplifier to connect to your MZC-144
for back
g
round music."
Wheelock no longer manufactures amplifiers.