Switch User Guide
Table Of Contents
- UNDERSTANDING THE CANOPY T1/E1 MULTIPLEXER
- Status LEDS
- Physical Specifications
- Technical Specifications
- T1 Channel Mode
- E1 Channel Mode
- Alternate Mark Inversion (AMI)
- The 1 in 15 Requirement (AMI)
- Binary Eight Zero Substitution Coding
- High Density Bipolar Order Three Encoding
- Master and Secondary Clocks
- Loss of Clock Signal
- Timing Modes
- Loopback Timing Mode
- Recovered Timing Mode
- Network Timing Scenarios
- INSTALLING AND CONFIGURING YOUR CANOPY T1/E1 MULTIPLEXERS
- MANAGING YOUR CANOPY T1/E1 MULTIPLEXERS
- CANOPY T1/E1 MULTIPLEXER REFERENCE INFORMATION
- Canadian Compliance Statement
- Statement of Compliance
Canopy T1/E1MultiplexerSeptember2004
T1/E1MultiplexerFPGAVersion3.4
Page17 of 73
Table 8: E1 framing specifications
Specification Description
Compliance ITU-T G.703
Framing transparent
Signaling transparent
Table 9: Local terminal and control interface specifications
Specification Description
Type RS-232 via DB-9 Female Connector
Mode DTE
Baud Rate 19.2 kbps
1.3 CONFIGURATIONSETTINGSFROMCANOPYFACTORY
1.3.1 BitHandlingCapability
As shipped, Canopy T1/E1 Multiplexers transparently pass all T1 or E1 bits regardless of
◦ user framing as
− D4
− Extended Superframe (ESF)
◦ user encoding as
− AMI
− B8ZS
− HDB3
However, user encoding is helpful for generating meaningful bipolar variation (BPV) data.
Canopy T1/E1 Multiplexers are factory preset to the B8ZS encoding for T1, though easily
changed to another encoding scheme, and are preset as master or slave for timing.
NOTE: To receive the highest level of performance from these units, the user should
understand
◦ clock recovery timing.
◦ packet/frame loss concepts.
◦ delay and latency.
◦ jitter.
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