Lucent Technologies 555-233-115 Manuale Utente

Pagina di 502
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 
5-55
High Reliability 
5
Install Circuit Packs
1. Install the new Release 8 control circuit packs into carrier “A.” Use the new 
label and the annotated “list configuration all” (provided with the Release 
8 removable media) as a guide.
NOTE:
Currently, the TN768 Tone-Clock circuit pack resides in a port slot of 
the universal module being upgraded. Relocate this circuit pack to 
the “TONE CLOCK” slot of carrier “A.” Lucent Technologies 
recommends that you upgrade to the TN2182 Tone-Clock.
2. Install circuit pack blanks in slots not equipped with circuit packs.
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 pack.
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 cabling terminated to 9823A lightwave transceivers can interconnect 
PNs up to 4,900 feet (1493 m) apart. Fiber optic cabling terminated to 9823B 
lightwave transceivers can interconnect PNs up to 25,000 feet (7620 m) apart. A 
300A fiber optic lightwave transceiver can interconnect PNs up to 115,000 feet 
(21.7 miles, 35 km) apart.
NOTE:
These distance limits are approximate measurements of the 
actual fiber 
right-of-way (not of the shortest linear distance) between the 2 endpoints.
NOTE:
It is important to label every cable that you install. 
NOTE:
Keep track of which fiber attaches to which connector on each lightwave 
transceiver. This section provides figures offering the suggested way of 
making these connections.
The connectors on the lightwave transceivers are labeled either “TX” 
(transmit) or “RX” (receive), while the fibers attaching to each connector are 
numbered either “1” or “2.” A viable fiber connection is only made when 
both fibers in each cable (“1” and “2”) route from the “TX” connector of a 
port network to the “RX” connector of its adjacent port network. See 
NOTE:
When finished, refer to 
 to 
administer the fiber links.