Lucent Technologies R8r Interconnect Port Networks High Reliability

DEFINITY Enterprise Communications Server Release 8.2
Upgrades and Additions for R8r
555-233-115 Issue 1 April 2000
Multicarrier G2 Universal Module to R8r EPN
5-55High Reliability
5
Install Circuit Packs
1. Install the new Release 8 control circuit pac ks into carrier “A.” Use the new
label and the annotated “ list configuration all” (provided with the Release
8 removable media) as a guid e.
NOTE:
Currently, the TN768 Tone-Clock circuit p ack resides in a port slot of
the universal module being upgraded. Reloc ate this circuit pack to
the “TONE CLOCK” slot of carrier “A.” Lucent Technologies
recommends that you upg rade to the TN2182 Tone-Clock.
2. Install circuit pac k blanks in slots not equipp ed with circuit p acks.
3. For a directly-connected high reliability Release 8 system with 2 port
networks, ensure the PPN and this EPN are both equipped with a TN776
or TN570 Expansion Interface circuit p ack.
For a directly-connected system with 3 port networks, ensure that the PPN
and each EPN have two TN776 or TN570 circuit packs.
Interconnect Port Networks — High Reliability
Fiber optic cab ling terminated to 9823A lig htwave transceivers can interconn ect
PNs up to 4,900 feet (1493 m) apart. Fiber op tic cabling ter minated to 9823B
lightwave transceivers can interconnect PNs up to 25,000 feet (7620 m) apar t. A
300A fiber optic lig htwave transceiver can interco nnect PNs up to 115,000 feet
(21.7 miles, 35 km) apart.
NOTE:
These distance limits are app roximate measurements of the actual fiber
right-of-way (not of the shortest linear d istance) between the 2 endp oints.
NOTE:
It is important to label ever y cable that you install.
NOTE:
Keep track of which fib er attaches to which con nector on each lightwave
transceiver. This section provid es figures offering the sugg ested way of
making these connections .
The connectors on the lightwave transc eivers are labeled either “TX”
(transmit) or “RX” (receive), while the fibers attach ing to each connector are
numbered either “1” or “2.” A viable fib er connection is only made when
both fibers in each c able (“1” and “2”) route from the “TX” connect or of a
port network to the “RX” connec tor of its adjacent port net work. See Figure
5-16.
NOTE:
When finished, refer to Appendix A, ‘‘Fiber Link Administration’’ to
administer the fiber links.