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
Page9 of 73
Admonition
Label
General Message
CAUTION!
a notice that the risk of harm to equipment or service exists.
WARNING!
a notice that the risk of harm to person exists.
1.1.5 GettingAdditionalHelp
Help is available for problems with supported products and features. The sequence of
actions that you should take if these problems arise is provided under Obtaining
Technical Support on Page 65.
1.1.6 SendingFeedback
We welcome your feedback on Canopy system documentation. This includes feedback
on the structure, content, accuracy, or completeness of our documents, and any other
comments you have. Please send your comments to
technical-documentation@canopywireless.com.
1.2 INTRODUCTIONTOCANOPYT1/E1MULTIPLEXER
This user guide provides the installation and configuration requirements for the Canopy
T1/E1 Multiplexer, a modular gateway that works with Canopy Backhaul Modules to
enable up to four T1 (or up to three E1) circuits to be extended over Ethernet networks.
The Canopy T1/E1 Multiplexer is available in two power configurations:
◦ an external 3.3-v DC power source from a 120/240-v AC adapter (supplied
by Canopy)
WARNING!
An external AC surge suppression device must be used with the Canopy
T1/E1 Multiplexer. For infrastructure installations, Canopy Engineering
recommends an AC line surge suppression unit that meets the standard
IEC 801-5 (EN61000-4-5) Maximum Surge Voltage (1.2x50µsec) 6 KV.
◦ a connection to an external −48 v DC supply.
The Canopy T1/E1 Multiplexer is illustrated with Canopy Backhaul Modules (BHs) in
Figure 1.
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