Lucent Technologies R8r Interconnect Port Networks with Fiber Cabling Critical 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
3-33Release 5/6si to Release 8r
3
Interconnect Port Networks with Fiber Cabling —
Critical Reliability Release 8r
1. Keep track of which fib er attaches to which conn ector on each lightwave
transceiver. This section provid es figures showing typic al ways of making
these connections.
The connectors on the lightwave transc eivers are labeled “TX” (transmit) or “ RX”
(receive), while the fibers attac hing to each connector are nu mbered “1” or “ 2.”’
See Figure 3-13.
Collocated Port Networks
For a critical reliability system with 1 c ollocated expansion p ort network, use 2
fiber optic c ables and 4 lightwave transc eivers to directly connec t the networks.
For a critical reliability system with 2 c ollocated expansion p ort networks, use 6
fiber optic c ables and 12 lightwave transc eivers to directly connec t 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 lev el.
Fiber-Remoted Port Networks
For a critical reliability system with 1 fib er-remoted EPN, use 4 fiber optic c ables,
4 lightwave transceivers, and 4 lightguide interfa ce units (provided b y the PSC).
For a critical reliability system with 2 fib er-remoted EPN, use 12 fiber optic
cables, 12 lightwave t ransceivers, and 12 lightg uide interface units (p rovided by
the PSC).