Centsys Nova Helix, Руководство по эксплуатации

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5.4. Beep-On-Activation
Beep-on-activation is a special feature associated with multichannel receiver variants.
It is a configurable feature that, if enabled, activates the buzzer on any press of a
transmitter button that is learnt into memory. The feature is disabled on all multichannel
receiver variants by default. To enable the feature refer to the section, Configuring the
Special Features, on page 27.
The buzzer provides one short, 150ms beep when a valid button that is learnt into
memory is pressed.
Panic channels override the beep-on-activation feature. This means that if a button is
pressed, that is associated with a channel, or combination of channels, where at least
one of the channels is a panic channel, the buzzer will not beep.
It is possible to disable the functionality associated with jumpers J1 and J2. Receivers are
often placed in elevated environments to optimise the range of the receiver. Often, little
or no attention is paid to securing the receiver. If the receiver unit is not secured it is
possible for a perpetrator to access the jumpers on the receiver and learn a remote into
the system without the knowledge or consent of the user. The Nova Helix range includes
functionality to disable the jumpers. With a master remote, the jumpers may be re-
enabled at any stage.
The following procedure documents disabling the jumper interface on the Nova Helix
range of receivers.
1. At least one master transmitter must be learned into the receiver memory.
2. Press and hold a master button for between 20 and 30 seconds. This will cause the
receiver to enter demastering mode.
3. While in this mode, fit jumper J2. The status LED will illuminate while the jumper
remains bridged.
4. When jumper J2 is removed, both jumpers will be disabled and no further jumper
operations may be performed.
To re-enable the jumper interface, repeat steps 1 through 4 again.
As a special note, the following system locks are possible:
• Disabling the jumper interface
• Demastering all remotes in memory (thereby rendering any further master based
learning impossible)
It is, however, not possible to have both system locks in place indefinitely.
On every power cycle of the Nova Helix receiver, the memory is interrogated to establish
whether any masters exist in memory. If no masters exist, and the jumper interface
has been disabled, then the jumper interface is forcefully re-enabled. Once the jumper
interface is re-enabled it is possible to administrate the system again.
6. Disabling Jumpers J1 and J2
DIS
ABLING
JUMPERS
J
1
A
ND
J
2
S
ECTION
6