Lucent Technologies 555-233-115 Manuale Utente

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DEFINITY Enterprise Communications Server Release 8.2
Upgrades and Additions for R8r  
555-233-115  
Issue 1
April 2000
Upgrading R5si/R6si to R8r EPN and Adding Memory 
3-22
Release 5/6si to Release 8r 
3
Interconnect Port Networks with Fiber Optic
Cabling 
— 
Standard Reliability Release 8r 
After all fiber optic equipment is installed, refer to 
1. Keep track of which fiber attaches to which connector on each lightwave 
transceiver. Label every cable installed. This section provides figures 
showing typical examples of these connections.
The connectors on the lightwave transceivers are labeled “TX” (transmit) or “RX” 
(receive), while the fibers attaching to each connector are numbered either “1” or 
“2.” See 
.
Collocated Port Networks
For a standard reliability system with 1 collocated EPN, use 1 fiber optic cable 
and 2 lightwave transceivers to directly connect the networks.
For a standard reliability system with 2 collocated EPNs, use 3 fiber optic cables 
and 6 lightwave transceivers to directly connect the networks.
NOTE:
Based on floor plan considerations, the length of these cables may vary. 
20-foot (6.1 m) cables are normally adequate for a Release 8r with 2 PNs.
For collocated cabinets, route the fiber optic cables directly from the PPN to each 
EPN cabinet. Since a Release 8r PPN cabinet is collocated with a Single-Carrier 
Cabinet stack, the preferred routing is to run the cables 
down the cable tray and 
out the bottom of the PPN cabinet. The cables are then run to the EPN cabinet 
and up the outside of the rear panels to the desired carrier level.
Fiber Remoted Port Networks
For a standard reliability system with 1 fiber-remoted EPN, use 2 fiber optic 
cables,2 lightwave transceivers, and 2 lightguide interface units (provided by the 
PSC).
For a standard reliability system with 2 fiber-remoted EPNs, use 6 fiber optic 
cables, 6 lightwave transceivers, and 6 lightguide interface units (provided by 
the PSC).