40 www.clearcom.com
Master Mode
Master Mode is a Tempest BaseStaon funcon that allows mulple BaseStaons to share audio without the presence
of an external hardwired intercom system power supply. Master Mode provides the necessary system terminaon to the
2-Wire hybrid circuitry in each of the Tempest BaseStaons so that common audio transfer can take place. Each BaseSta-
on in a linked system provides its own power for audio. Either a single channel or both channels can be linked.
The only limit to the number of BaseStaons that can be linked to share an audio channel is the impact of mulple RF
sources in close proximity. As the number of BaseStaons goes up and they begin to compete for RF spectrum, the range
will begin to decrease. See the secon on Accu-Sync and the secon on Antenna Locaon, to minimize the eect of RF
compeon.
It is necessary to use Master Mode when two or more Tempest BaseStaons will be linked to share audio and an external
hardwired intercom system is NOT present to provide a power. When an external 2-Wire intercom system is connected
to Tempest, the external 2-Wire intercom system provides the required power and system terminaon and Master Mode
is automacally disabled.
On the BaseStaon that will be set to Master Mode, set the 2-Wire Intercom Type Select slide switch to the Clear-Com
posion. Master Mode only works as Clear-Com type. If “RTS” or “BAL” is selected, an aempt to set the BaseStaon as
master will result in an error message. If the slide switch is changed from Clear-Com to RTS or BAL, Master Mode will
turn o, and it will be necessary to return to the “Mul-Base Seng” menu to re-enable Master Mode.
On slave BaseStaons, set the slide switch to Clear-Com.
On each BaseStaon, set the shared intercom channel(s) to the 2-Wire mode. Master Mode only works for channels
selected for 2-Wire connecon.
Connect the appropriate intercom channel(s) of each BaseStaon that will share audio using the 3-PIN XLR male and
female connectors on the back of the BaseStaon.
Complete all sengs and connecons before acvang Master Mode. Set one BaseStaon to Master Mode. Master
Mode sengs are found at the “Set Base as Master” screen under the “Mul-Base Sengs” main menu selecon. It is
only possible to set one BaseStaon as Master. The words “Master Mode” appear in the top line of the BaseStaon dis-
play, to the right of the BaseStaon name, when Master Mode is acve. An aempt to set a second BaseStaon as master
will result in an error message. It does not maer which BaseStaon in a linked series is set to Master Mode.
Slave BaseStaons – those not set as master – detect the master BaseStaon as a Clear-Com connecon.
An aempt to set a BaseStaon to Master Mode while connected to a 2-Wire system will result in an error message. If a
BaseStaon has “Set Base As Master” rst turned on, and an external hardwired intercom system is connected later, the
Tempest BaseStaon will turn o Master Mode.
The “Set Base As Master” seng will remain on through a power cycle.
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