Security Labs SL611 User Manual page 13

OPERATION AND USE - Functional Descriptions (continued)
RECORD DELAY INTERVAL
When the unit receives its first record trigger, the tape loads around the heads before actual recording begins. Whether
the unit is in the POWER OFF or POWER ON mode, it will take approximately two seconds to begin its first recording.
After the first trigger, the unit will be in the INSTANT RECORD MODE for approximately five minutes. If no further trig-
gers are detected, the unit will go back into standby, and will take approximately two seconds to start recording again.
As long as a trigger is detected at least every five minutes, the unit will remain in the INSTANT RECORD MODE. This
feature is present to prevent the tape from breaking due to extended periods of time of tape/video head contact. If a
two second record delay is not desirable, detection switches should be specifically placed to compensate. Many appli-
cations of recording will have a switch activation every five minutes and will keep the unit in the INSTANT RECORD
MODE.
ACTIVATION SWITCHES / ALARM PANELS Any activation switch that has a momentary closure (normally-open), or
a momentary opening (normally - closed) will activate the event recorder. Observe installation guidelines as outlined.
ALARM PANELS: DO NOT CONNECT THE UNIT DIRECTLY TO ACTIVATION SWITCHES THAT ARE CURRENTLY
IN USE BY ANY EXISTING ALARM PANEL. DAMAGE TO THE VCR AND ALARM PANEL COULD RESULT. Since
the recorder uses a 5 volt sensing circuit on its activation switch terminals, only dedicated switches can be used. An
existing switch from an alarm panel can be used, but must be disconnected from all present connections before con-
necting to the recorder. Make sure your alarm system will still have adequate switch coverage before removing a
switch. The recorder can be connected to an unused accessory terminal on the alarm panel. This accessory terminal
must be free of any voltage and be compatible (momentary, normally-open or normally-closed contact). Activation
switches can include passive infrared detectors, sonic detectors, infrared beams, magnetic switches, glass foils, or
other devices. (SEE SECURITY SYSTEM COMPONENTS)
END OF TAPE CONTACT
Screw #5 on the terminal block will close momentarily (approx. one second) to the common terminal (screw #3) when
the tape is at the end. This circuit utilizes an open collector transistor that is pulled to ground. Make sure that any load
on this contact is rated below 100 mA. A low current buzzer circuit can be connected to these contacts to remind the
user to change tapes. Another use is to extend recording time by allowing these contacts to trigger another event
recorder. The user must observe polarity when making connection to the end of tape contacts. (SEE CONNECTING
UNITS TOGETHER & REAR PANEL CONNECTIONS)
CONNECTING UNITS TOGETHER
This unit can be used in series with others of the same model to extend recording time. At the end of each tape, the
END OF TAPE contacts will trigger the next unit to begin recording to the end of tape. This option is for continuous
recording only, not for use with the EVENT RECORD connections. To use the CONTINUOUS RECORD- multiple unit
operation, connect terminals 3 and 5 of the first recorder to terminals 3 and 2 (panic record) of the next recorder. The
wire for connecting units together for series recording should be 22 gauge or larger, insulated cable. Additional
recorders may be added in this manner. Three recorders can record for 24 hours using a T-160 tape in EP.
FIRST RECORDER screw 3 to SECOND RECORDER screw 3
FIRST RECORDER screw 5 to SECOND RECORDER screw 2
When the first recorder is at the end of the tape, the second recorder will be triggered to record to the end of its tape
through the panic record input. The first recorder may be activated by the remote, front panel, or the panic record input
on the terminal strip. Remember that if the you place the unit into record manually it will stop after a triggered event
record input. It will not stop after a triggered panic record, should an additional event record trigger occur.
TUNER OPERATION
A cable ready tuner is available for recording cable signals. To record, disable trigger inputs as they will automatically
reset the machine to AV when triggered. Press the INPUT button on the remote and select a channel with the numer-
ic pad or the "+ and -" buttons. Confirm that a cable ready signal is present on the ANT IN jack on the rear panel of the
recorder. Recording cable signals from the ANT IN connector will not place the time and date on the recording, but it
will be visible during recording on the monitor or TV.
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