Lucent Technologies R8r Interconnect Port Networks with Fiber Optic Cabling High Reliability Release 8r

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
3-27Release 5/6si to Release 8r
3
Interconnect Port Networks with Fiber Optic
Cabling — High Reliability Release 8r
1. Keep track of which fib er attaches to which conn ector on each lightwave
transceiver.
This section provides figu res showing typical ways of making these connections.
The connectors on the lightwave transc eivers are labeled “TX” (transmit) or “ RX”
(receive), while the fibers attachin g to each connector are nu mbered “1” or “ 2.”
See Figure 3-10.
Collocated Port Networks
For a high reliability system with 1 colloc ated EPN, use 1 fiber optic cab le and 2
lightwave transceivers, or 1 sing le-mode fiber optic cable and 2 sing le-mode
lightwave transceivers to d irectly connect the networks.
For a high reliability system with 2 col located EPN, use 3 fiber optic c ables and 6
lightwave transceivers, or 3 sing le-mode fiber optic cables and 6 sing le-mode
lightwave transceivers to d irectly connect the networks.
NOTE:
Based on floor plan cons iderations, the length of these cab les may vary.
20-foot (6.1 m) cables are normally ad equate for a Release 8r with 2 port
networks.
For collocated cab inets, route the fiber optic c ables 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 r un to the EPN cabinet
and up the outside of the rear p anels to the desired carrier.
Fiber-Remoted Port Networks
For a high reliability system with 1 fiber-remoted EPN, use 2 fiber optic cables, 2
lightwave transceivers, and 2 lightguide interfac e units (provided by the PSC).
For a high reliability system with 2 fibe r-remoted EPNs, use 6 fiber optic c ables, 6
lightwave transceivers, and 6 lightwave-interface units (provid ed by the PSC).
DS1 CONV-Remoted Port Networks
For a high reliability system with 1 DS1 CONV-remoted expansion p ort network,
use 2 DS1 CONV circuit packs (TN1654), 2 DS1 CONV-to-EI cables (846448637
and/or 846448645), 2 H-600-348 cab les, from 1 to 4 pairs of channel service
units (CSUs), and from 1 to 4 pairs of wall-field c ables (provided with the CSUs).
NOTE:
The TN1654 requires a TN573B Switch Node Interface circ uit pack