IOP and IOA Module Specifications
32-port Channelized T1/E1 FR/IP IOM
Beta Draft Confidential
CBX 500 Multiservice WAN Switch Hardware Installation Guide 4/5/03A-7
Interface Standards
• American National Standards Institute (ANSI) T1.231 (performance monitoring)
Other Standards
• Frame Relay Forum FRF.5, FRF.8, and FRF.16
•ITU-TG.703
• ITU-T G.704 — basic frame structure and cyclic redundancy check (CRC)
implementations
• ITU-T G.826 (performance parameters)
• E1 Management Information Base (MIB) — Request For Comment (RFC) 1406
(for near-end statistics)
• RFC 1490 translation FRAD
• HDLC/SDLC encapsulation FRAD (for X.25 traffic)
•CEMark
Physical Interfaces
32 physical ports per IOA module:
• T1 mode: 24 DS0 channels per physical port (768 logical ports per IOM, each at
64 Kbps)
• E1 mode: 30 TS0 channels per physical port (960 logical ports per IOM, each at
64 Kbps)
Physical Connectors
• 32-Port Channelized T1 FR/IP I/O connector panel: RJ48, 100-ohm
• 32-Port Channelized E1 FR/IP I/O connector panel: RJ48, 120-ohm
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