Clear-Com Tempest2400 User Manual

32 www.clearcom.com
2-Wire (Party-Line) Interface
2-Wire party-line intercom systems carry one or two (depending on the system type) channels of full duplex intercom audio plus
system power and other informaon on a single XLR-3M cable (2 wires and a ground). Each 2-Wire intercom type has a dierent
wiring scheme and unique line characteriscs. It is imperave to have the rear panel connecons and the front panel sengs
adjusted correctly for audio to pass correctly between the systems.
Steps to Congure a 2-Wire Intercom Connecon
• Adjust the Intercom Type Slide Switches to appropriate manufacturer compable seng- RTS, Clear-Com, Bal.
• Select 2-Wire connecon for the appropriate channels.
• Make the 3-pin XLR physical connecons to the Tempest BaseStaon and the 2-Wire system.
• Null the system.
• Adjust IN/OUT volume levels between the Tempest Wireless System and the 2-Wire system.
Always conrm that the 2-Wire intercom system is funconing properly before connecng the Tempest Wireless system.
Test each wired communicaon staon before connecng the wireless system. Conrm operaon of the wireless system
before connecng to the wired system.
Aer the slide switch is set correctly; the appropriate channels are set for 2-Wire operaon; the XLR cable connecons are
made; and power is provided by the 2-Wire system or Master Mode; then audio will pass between Tempest and the wired
system.
Audio may develop an echo that is heard in the wireless BeltStaons unl the system is nulled. The echo should not
prevent communicaon but is undesirable. The volume levels into or out from Tempest , may need adjusng so that
relave volumes are the same.
Echo Cancellaon Menu
In the BaseStaon’s Tech Menu is a selecon for “Echo Cancellaon” (ECAN). This refers to soware that assists in removing echo
from 2-Wire intercom connecons. Hardware connecons need to be opmized with the null procedure to minimize echo in the
physical link so that the soware can remove any residual echo.
In the Tech menu, “Echo Cancellaon” is “ON” by default, but is only enabled for channels that are selected for operaon with a
2-Wire intercom and have a physical connecon to a 2-Wire system. See “Nulling” on pg. 33.
If a 2-Wire intercom is never ulized in a system, ECAN can be turned “O” to assure that it cannot create undesirable eects.
This should not be necessary though and it is recommended that you keep ECAN “on” at all mes.
ECAN is disabled while the BaseStaon’s Auto-Null or Manual Null menu screens are acve, to insure that the hardware is
opmized for echo reducon. When ECAN is enabled it requires up to 10 seconds of acve audio to achieve maximum eciency.
Brief loud acve audio can help accelerate eciency.

Clear-Com Tempest2400 Specifications

General

Brand	Clear-Com
Model	Tempest2400
Category	Intercom System
Language	English