IOP and IOA Module Specifications
4-port Channelized DS3 Frame/IP IOP Module
Beta Draft Confidential
A-224/5/03 CBX 500 Multiservice WAN Switch Hardware Installation Guide
Line Coding
B3ZS
Framing
D4, ESF (CCITT)
Application Mode
C-bit parity, M13
Signal Levels
• Receive: Peak pulse amplitude from 0.2 to 0.85 volts
• Transmit: Conform to ANSI T1.102 pulse template and amplitude (0.36 volts to
0.85 volts) for cable up to 450 feet
Table A-7. DS3 and DS1 Standards
Level Standard
DS3 ANSI T1.103, ANSI T1.107/T1.107a, ANSI T1.231, ANSI
T1M1.3/91-003R3, GR-499-CORE, AT&T TR54016, RFC 1407
DS1 AT&T Publication 62411, GR-499-CORE, ANSI T1.403, ANSI
T1.107, RFC 1406
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