Zhone IMACS 8000, Руководство пользователя

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Server Cards 20-1
Analog Bridging Server Card Introduction
Chapter 20
Analog Bridging Server Card
20.1 Introduction
This chapter provides installation, configuration, and troubleshooting information for the
Analog Bridging Server Card, (BRIDGE).
20.2 Analog Bridging Server Card Description
(8000-BRIDGE)
The Analog Bridging Server Card is a plug-in server card which allows the analog voice band
signals from up to thirty two voice circuits to be combined (bridged). In the case of the IMACS
application, each analog circuit is a DS0 channel carrying analog traffic from an access card
port such as a FXS, 4W E&M, 2W E&M or from a WAN port. Although this traffic originates
as an analog signal, it is bridged digitally in the Analog Bridge card after it has been digitalized
into a DS0. The bridge itself is set up via the provisioning interface on the IMACS
maintenance terminal. Once the bridge is set up, the circuits remain permanently bridged until
the provisioning is changed. There is no supervision (on/hook or off/hook) or signaling (digit
dialing) involved with circuits that are bridged. End-users can not dynamically add or delete
themselves from the bridge, making this a permanent telephone conference bridge with no
dynamic end-user control.
The BRIDGE Analog Bridging card can support up to 240 total DS0 circuits. There are 80
bridges available, and each bridge is capable of joining 32 subscribers. Echo cancellation and
half duplex options are available.