Lucent Technologies Release 6 Fiber Optic Cable Connections, Multi-Mode Fiber Optic Connections

DEFINITY Enterprise Communications Server Release 6	Issue 5
Installation and Test for Multi-Carrier Cabinets 555-230-112	May 1998

AConnecting Fiber Optic Cables

Fiber Optic Requirements Page A-3

Fiber Optic Cable Connections

The Customer Service Document (CSD) provides an “Inter-Carrier Cable Running List.” Each row on the list represents a cable connection. Use the running list to determine where to connect each fiber optic cable.

Multi-Mode Fiber Optic Connections

Multi-mode fiber cables are generally colored gray or orange. The following components are used in multi-mode fiber optic connections:

■Expansion Interface (EI) circuit packs in port slots in cabinet carriers

■Switch Node Interface (SNI) circuit packs in the Switch Node Carrier

■The 9823A lightwave transceiver transmits up to 4,900 feet (1500 m). The 9823B lightwave transceiver transmits up to 25,000 feet (7600 m).

■Multi-mode fiber optic cable consisting of 2 separate 62.5 micron or 50 micron core fiber optic cables.

Single-Mode Fiber Optic Connections

! CAUTION:

Do not use Dispersion Shifted or Wave Diversion Multiplexing fiber. Use only dispersion unshifted fiber such as Depressed Clad and Matched Clad fiber (EIA/TIA Class IVa).

Single-mode fiber cables are generally colored yellow. The following components are used in single-mode fiber optic connections:

■Expansion Interface (EI) circuit packs in port slots in cabinet carriers

■Switch Node Interface (SNI) circuit packs in the Switch Node Carrier

■The 300A lightwave transceivers. Each 300A transmits light up to 115,000 feet or 22 miles (35 km). Fiber loss must be less than 17dB. Saturation may occur if distances are short; attenuators may be required if the total loss on the fiber link is less than 10dBm. An OTDR or Optical Power Meter test is recommended to determine specific fiber optic hardware requirements.

NOTE:

Using the 300A may require 5, 10, or 15dB attenuators. See ‘‘When to Use Single-Mode Fiber Attenuators’’ on page A-7. Also, contact your Lucent Technologies representative for attenuator requirements on single-mode links.

■Single-mode fiber optic cable consisting of 2 separate 8 to 10 micron core cables.