Technical Specifications
10-22 Issue 8.0 July 2002
IS-3 Access 10
Optical Line Interface 10
The IS3 Optical Interface (IS3) circuit pack supports intraoffice signal transmission
distances up to 2000 feet. The IS-3 signal is based on proprietary optical
specifications that are common across the SONET family of products.
Optical Connector Interfaces 10
The IS3 circuit pack uses
ST
lightguide connectors (standard), FC/PC lightguide
connectors, or SC lightguide connectors.
Transmission Medium 10
Multimode fiber
Lightguide Jumpers 10
Multimode lightguide jumpers
Optical Source 10
LED
Optical Detector 10
PIN diode
Optical output .............................................. 155.52 Mb/s
Optical line code.......................................... Scrambled nonreturn to zero
(NRZ)
Growth Increment........................................ One IS-3 per circuit pack
Protection Ratio........................................... 1+1
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