Raco Verbatim, Owner'S Manual

Page: 175 / 246

Verbatim Floobydust
Verbatim Owner's Manual H-13
H.9 Connecting to a Radio Transmitter
If you have a radio transmitter that can provides for external connection of an
audio signal input and also for connection of an external contact closure to key
on the transmitter, you may connect it to the Verbatim autodialer. However you
should also consider the alternative of using RACO’s CELLULARM cellular
phone system, which provides a superior means of signalling where regular land
line phone service is not available.
Note that the radio operation described below is not compatible with installation
of the Telephone Line Seizure option.
To obtain the contact closure used to key on the transmitter, it is necessary to
solder some special connections on the back of the main circuit board.
This
step is not necessary if your unit has been supplied from the factory with
the RF Interface option.
First, disconnect the gel cell battery and remove all AC power connections.
Remove any option cards. Then carefully remove the speech card located at the
top of the unit, via its two mounting screws. Be careful to retain the plastic
spacers located behind these screws, for use when replacing this speech card.
Flex the card slightly to clear the two mounting pegs and pull the card straight
outward.
Remove the main circuit board by removing the six 6-32 mounting screws.
You may also wish to unplug the contact input terminal strips and the ribbon
cable which leads to the front panel. Solder a pair of jumper wires to the back
of the board as indicated in the Jumper Wires for RF Link Diagram. This step
connects the auxiliary contacts of off-hook relay K1, to the Y and B terminals
of telephone terminal strip TS2.
Re-assemble the unit and restore any connections which were removed. Be sure
that the ribbon cable’s connector is accurately and firmly seated.
Connect the Y and B terminals on TS2, to the external keying input of your
transmitter. The transmitter will now be keyed on whenever the off-hook relay
is activated.
The method of audio connection depends on whether the product is to be con-
nected to a regular phone line in addition to the radio transmitter. If a sensitive
microphone input is used, additional attenuation may be required to avoid
overloading the audio input.
If phone line operation is required in addition to radio operation, establish the
audio connection into the transmitter via jack AJ1, as described in the section
on EXTERNAL SPEAKER CONNECTIONS.