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 TIME MULTIPLE SHARED TECHNOLOGY
& OTHER CONTROL OPTIONS
Time Multiple Shared technology allows
up to four systems to operate on a single frequency by employing advanced data compression
techniques. It is structured to minimize the actual on-air time of any single
transmission. This allows for multiple transmissions having a minimal response time and
thus being able to share a common frequency.
The TMS
system is designed so that a transmitter will send a signal for a predetermined
on time, and will then turn off. The length of this on time is
referred to as a data burst or packet. It is programmed into the
TMS system software.
The
packet length is a function of the quantity of data to be sent and the data (or baud)
rate. Once the packet is sent, the transmitter turns off and reverts to a
standby mode. This allows time for the other transmitters to send their data
on the same frequency.
TMS adds
as much as 40% to the life of a battery as compared to continuous carrier systems. Because
the frequency related parts are common to several systems, excess inventory is
unnecessary.
To
summarize, TMS:
Allows up to 4
systems to time share one radio frequency
Simplifies frequency
coordinators task of reviewing, assigning, approving channels
Increases battery life
Reduces spares requirements
Operates at 4800 baud to
minimize system response time
Uses advanced synthesized
technology that is programmable into any number of predetermined frequencies.
ACCESS CODE PLUG OPTION
For a receiver and a transmitter unit to communicate with one
another, each has to be set to the same access code. An access code plug
is a Cannon-type plug that is placed onto a mating receptacle to allow for an
easy change of access code.
Without
the plug, the transmitter case has to be opened and the switch that is mounted on a
microcomputer module must be reset manually. With the plug, however, there is no need to
open up the transmitter: similarly configured transmitters can easily be interchanged
among systems simply by swapping the plugs.
Universal
Spare Transmitters (USTs) can be brought online quickly by removing the plug from the main
transmitter and placing it on the USTs receptacle. This option is available on both
the TMS and continuous carrier systems.
CONTROLLED RANGE PLUS OPTION
An option for the 8-K and 10-K series of radio remote controls is
Controlled Range Plus, which provides a circle of safety with
regard to the crane being operated or being permitted to start. Outside the circle,
pre-selected crane movements are automatically disabled, thus ensuring close control.
The
Controlled Range Plus transmitter is mounted inside the main control
transmitter and transmits its own distinct signal as soon as the power switch or the start
switch is turned on. Controlled Range Plus may operate either by radio control
or infrared.
The
system can be made to disable all functions or just selected functions as determined by
the required operational parameters. When the operator is out of the predetermined range
of the system, those functions that were programmed to be disabled will be disabled.
PITCH & CATCH OPERATION OPTION
The pitch & catch feature allows a crane to be controlled by two
different transmitters on a first-come/first-serve basis.
The first
operator may gain control of the crane and use it for as long as he keeps his transmitter
on. While he is in control, the second operator is automatically locked out.
When the
first operator wishes to release control of the crane, he will signal his intent to the
second operator. The first operator will relinquish control by turning off his
transmitter. The second operator will turn on his transmitter and press and release the
start button.
The
second operator will have now gained control of the system and a smooth transfer of
control will have taken place.

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