page 7
www.centsys.com
Channel Compartment:
Every channel that has unique functionality, has its own unique channel compartment.
A channel compartment is a memory space that stores all the transmitter buttons that
activate the functionality associated with the channel. Because channel compartments
are unique, certain operations can be applied to a channel compartment in isolation. For
example, a user may delete, or bulk demaster an entire channel compartment, thereby
modifying all remotes associated with a particular type of functionality. Although the
concept applies to the single-channel variants, it is practically obviated since there is only
ever one channel to modify - operating on channel one is equivalent to operating on the
entire transmitter memory space.
Channel Jumpers:
Multichannel receivers have four channel jumpers. The channel jumpers are used to
select a particular channel. Each jumper relates to a particular physical receiver output.
A channel is selected by placing links on the jumpers associated with the functionality
of interest. As specified in the channel nomenclature section above, the actual channel
number is not important. The user must simply place jumpers based on the functionality
that is of interest. However, it is worthwhile noting that the channel selected by fitting
links on jumpers 1 and 2, for example, is different to the one selected by placing a link
on jumper 1 alone. Hence the usefulness of using the term channel to describe collective
functionality.
Channel jumpers behave differently when discussing the SmartSwitch II interface.
The jumpers are used to select a 4-bit binary address that addresses a particular
SmartSwitch II device on the interface bus. Table 2 below documents the jumper settings
to address a particular SmartSwitch II device. A SmartSwitch II device address is nothing
more than a receiver channel output.
Table 2 illustrates that a transmitter button that is learnt to a particular channel will
simultaneously activate the onboard relays and the SmartSwitch II device with the device
address indicated (unless simultaneous primary channel activation is disabled).
Sticky Latches:
This is a special feature on all receiver variants that allows the receiver to restore its
output state on power loss. When power is restored, the output will assume the state
it last reflected prior to the receiver losing power. Normally a receiver that has latched
channels will always power-up with the channels unlatched; regardless of the output
state of the channel prior to power loss. The sticky latch feature addresses this problem
(in applications where it is seen as a problem), and restores the output state of the latch
to its state prior to power-loss.
Beep-on-Activation:
This is a special feature on multichannel receiver variants that emits a short beep from
the buzzer on the receiver, when a button that is learnt into the receiver is pressed. It
is useful in cases where the user is within audible range of the receiver and would like
an acknowledgment that the transmitter transaction has been successfully received and
decoded by the receiver.
The feature can be enabled and disabled on multichannel variants.
S
ECTION
2
GLOS
S
ARY
OF
TERMS
