Clear-Com Tempest 900 Reference Manual

61 Tempest®900 4-Channel Wireless Intercom System
Master Mode
Master Mode is a Tempest BaseStaon funcon that allows mulple BaseStaons to share audio without the presence of
an external hardwired intercom system.
It is necessary to use Master Mode when two or more BaseStaons are connected with the 2-Wire interface, and no
external power source is present. Master Mode provides necessary system power to the 2-Wire hybrid circuing in each
of the connected Tempest BaseStaons. When an external 2-Wire intercom system is connected to Tempest, the external
2-Wire intercom system provides the required power and system terminaon and Master Mode is automacally disabled.
On the BaseStaon that will be set to Master Mode, set the 2-Wire Intercom Type Select slide switches to the Clear-Com
posion. Master Mode only works in Clear-Com mode. If “RTS” or “BAL” is selected, an aempt to set the BaseStaon 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
OFF, and it will be necessary to return to the “Mul-Base Seng” menu to re-enable Master Mode.
On slave BaseStaons, set the slide switches to Clear-Com.
On each BaseStaon, set the shared intercom channel(s) to the 2-Wire mode. Master Mode only works for channels
selected for 2-Wire connecon.
Connect the appropriate intercom channel(s) of each BaseStaon that will share audio using the 3-pin XLR male and female
connectors on the back of the BaseStaon.
Complete all sengs and connecons before acvang Master Mode. Set one BaseStaon to Master Mode. Master Mode
sengs are found at the “Set Base as Master” screen under the “Mul-Base Sengs” main menu selecon. It is only
possible to set one BaseStaon as Master. The leer “M” will appear in the top line of the BaseStaon display, to the right
of the BaseStaon name, when Master Mode is acve. An aempt to set a second BaseStaon as master, will result in an
error message. It does not maer which BaseStaon in a linked series is set to Master Mode. Note: previous versions of
Tempest rmware displayed Master Mode with the word “Master” in the top line.
Slave BaseStaons – those not set as master – detect the master BaseStaon as a Clear-Com connecon.
An aempt to set a BaseStaon to Master Mode while connected to a 2-Wire system, will result in an error message. If a
BaseStaon has “Set Base As Master” rst turned ON, and an external hard wired intercom system is connected later, the
Tempest BaseStaon will turn OFF Master Mode.
The “Set Base As Master” seng will remain ON through a power cycle.

Clear-Com Tempest 900 Specifications

General

Brand	Clear-Com
Model	Tempest 900
Category	Intercom System
Language	English