IOP and IOA Module Specifications
8-port Subrate Module
Beta Draft Confidential
CBX 500 Multiservice WAN Switch Hardware Installation Guide
4/5/03
A-41
Interface Standards
•
ANSI T1.102
•
ANSI T1.107a (DS3 format specifications)
•
ANSI T1.231 (DS1/DS3 performance monitoring)
Other Standards
•
Frame Relay Forum (FRF)
•
RFC 1483
•
RFC 1407 (DS3 link statistics)
•
DS3 MIB, January 1993 (DS3 link statistics)
•
Bellcore TR-NWT-000820
Physical Interfaces
Eight DS3 ports, each configurable to a vendor-specific DS3 subrate.
Physical Connectors
Two 75-ohm BNC connectors for each port (transmit/receive)
Line Coding
B3ZS or vendor proprietary
Framing
•
M13 mode
•
C-Bit parity mode
Signal Levels
•
Receive: Peak pulse amplitude from 0.2 to 0.85 volts
•
Transmit: Conformance to ANSI T1.102 pulse template and amplitude
(0.36 volts to 0.85 volts) for cable lengths up to 450 feet