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System Overview Chapter 2 15
System Overview
BCM50e
The BCM50e in Figure 2 provides call processing and data-routing features and is suitable for
networks that require datarouting capability using an integrated Ethernet router. The WAN
interface port provides 10/100 Ethernet with autosensing and autopolarity. If you have existing or
alternative WAN access technology, you can still benefit from the VoIP features of the BCM50.
Figure 2 BCM50e front panel
BCM50a
The BCM50a in Figure 3 provides call processing, data routing features, and an integrated ADSL
modem. The BCM50a is a stand-alone set of integrated applications. With the BCM50a, you have
complete voice and Internet service with resulting efficiency and convenience.
Figure 3 BCM50a front panel
These features provide a complete, integrated Communications Server/ADSL access package for
ease of interconnecting with service-provider ADSL networks:
• ITU G.992.1 (G.DMT)
• G.992.1 Annex A
• ITU G.992.2 (G.Lite)
• ANSI T1.413 Issue 2
• DSL Forum document TR-042 ATM Transport over ADSL
• G.hs 994.1
• G.ploam G.997.1
• Autonegotiation rate adaptation
• RFC 2364 PPP over AAL5
• RFC 2684 Multiprotocol Encapsulation over ATM, both Bridged and Routed
encapsulation
• Support for British Telecom SIN 329
• Broadband IP Products requirements for End User NTE equipment, where the router and
ADSL modem functions are integrated into one device