Dual XPR522 Informações Técnicas descarregar pdf (Página 18)

Revised May 15, 2006

Existing Wiring

Before committing to reusing existing wiring, it’s very important to verify

both the integrity of the wiring and the number of pairs available. Some

older systems do not use the same number of wire pairs as the MultiPath

system. Verify the presence of a dedicated pair of wires for each speaker

zone and for each call switch.

Surge Protection

Valcom MultiPath recommends that its system be protected from transient

voltages to the same degree that telephone systems in your area require.

Call button inputs and speaker outputs should be protected to a 30-volt

maximum. Admin ports may use standard CO line port protection.

Integrating with Existing Networks

When proposing a Valcom MultiPath that will use network connectivity, be

certain to clarify where your responsibility ends. Failure to do so may

result in additional job costs resulting from unexpected network

troubleshooting that is unrelated to the equipment you have installed.

Typically, it is possible to show proper operation of a network device

without introducing network specific variables by use of a crossover cable.

Sound Reinforcement Systems

School RFPs often request solutions for auditorium, cafetorium and

gymnasium sound systems. Systems of this type, sound reinforcement

systems, differ from intercom in that they are used to amplify program

material and voice for assemblies and other school events. Simple sound

reinforcement systems are comprised of an amplifier, speakers, music

sources and a microphone. More elaborate systems may call for

equalizers and mixers. Should you wish to address this portion of the

RFP, Clarity amplifiers and speakers are often used with 3

party mixers

and equalizers to accomplish the desired result. If configured correctly,

sound reinforcement systems may be used to amplify public intercom

announcements as well. In the case where the RFP requires a pro sound

system for the auditorium, gymnasium or cafetorium, some consideration

should be given to subcontracting this portion of your bid to a qualified

vendor.

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