Verbatim Floobydust
H-8 Verbatim Owner's Manual
H.7 Line Seizure Option
Line Seizure is a feature that ensures that the dialer will seize the phone line
when it goes into alarm, cutting off any phones, FAX, or answering machines
that may be on line at the time (these are called the downstream phones, as they
are downstream from the Verbatim ). The unit waits two seconds to allow a
dial tone to come up, then dials out. These phones will remain cut off until the
alarm is acknowledged.
The Verbatim provides a 5 volt output that is turned on whenever the unit goes
into alarm. This is available at JB4, located at the top center of the main board.
Use a molex style 2 pin connector to plug onto the JB4 pins. This output can
activate a sensitive (500 ohm +) relay such as a Potter & Brumfield KHU-
17D11-6. Connect a 150 ohm, 1/4 watt resistor across the relay coil. The
Potter & Brumfield relay plugs into a socket (#27E166) which is shown in the
accompanying figures. Note that it has four separate circuits in SPDT form.
This relay may be used for local alarm, line seizure, or both.
The phone jack must be an RJ-31X, which is available from the phone company
or a phone supply outlet. In operation, the Verbatim plugs into the RJ-31X
jack and makes contact with the middle four pins, which are the standard red,
green, yellow and black wires.
Note that you may combine the Local Alarm Relay with Line Seizure feature
simply by using one of the spare circuits (3 or 4) for the local alarm. It breaks
the downstream connections, thereby seizing the line, then waits two seconds to
allow a dial tone to come up, then dials out.
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