Dual XPR522 Informações Técnicas descarregar pdf (Página 19)

Revised May 15, 2006

Talkback Speakers

Most Valcom MultiPath systems use 45-ohm speakers for talkback. When

configuring a 45-ohm system, it’s important to use the 45-ohm speakers

suggested in the system design tool as they have built in volume limiters

required to set the all call volume level. Standard Valcom 45-ohm

speakers may be used on talkback outputs that will include V-2970 or V-

2971 call switches. Use one-way self-amplified speakers for all one way

paging areas.

Telephone System Integration

Valcom MultiPath will integrate with the facility’s telephone system

through available loop start C.O. line ports. If you are not providing the

telephone system, you may want to verify the availability of these ports

prior to bidding the job. Refer to the “Telephone System Terms” section

of this document for additional information.

It may be necessary to change telephone system programming to

accommodate or route the Valcom MultiPath ports. If the school maintains

its own telephone system, this will simply involve coordinating the change

with the responsible party. Otherwise, it may be necessary to employ the

services of an authorized dealer for the telephone system involved. Once

again be certain to clarify where your responsibility ends in your proposal.

Ethernet accessed remote IDFs (RIDFs)

VCRCA remote card adapters allow V-TCM, XP-TCM12, V-STX and V-URI cards

to be located remotely from the V-CPU4. The VCRCA replaces feeder cables

from the MDF to IDF locations. Ethernet accessed remote IDFs using VCRCAs

require a 10/100 MB, multicast enabled, switched network (VLAN) between the

MDF and all remote IDF locations. Customers must have a Cisco Certified

Network Engineer on staff and must meet additional criteria in order to

purchase the VCRCA. It is strongly suggested that zones connected through

VCRCAs and directly wired zones not be mixed in the same acoustic area."

Important: The VCRCA is a specially engineered product. Contact Valcom

Technical Support for information concerning the qualifications to obtain

VCRCAs. Certain engineered products, such as VCRCAs, are

not available through distribution and must be purchased directly from

Valcom.

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