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
3-22Release 5/6si to Release 8r
3
Interconnect Port Networks with Fiber OpticCabling — Standard Reliability Release 8r
After all fiber optic eq uipment is installed, refer to Chapter A, ‘‘Fiber Link
Administration’’.
1. Keep track of which fib er attaches to which connec tor on each lightwave
transceiver. Label every c able installed. This section p rovides figures
showing typical examp les of 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 numbered either “1” or
“2.” See Figure 3-7.
Collocated Port Networks
For a standard reliability system with 1 c ollocated EPN, use 1 fiber optic cable
and 2 lightwave transceiv ers to directly connect the networ ks.
For a standard reliability system with 2 colloc ated EPNs, use 3 fiber optic cab les
and 6 lightwave transceiv ers to directly connect the networ ks.
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 PNs.
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 level.
Fiber Remoted Port Networks
For a standard reliability system with 1 fib er-remoted EPN, use 2 fiber optic
cables, 2 light wave t r anscei vers, a nd 2 ligh t guide in terface unit s (prov ided by th e
PSC).
For a standard reliability system with 2 fib er-remoted EPNs, use 6 fiber optic
cables, 6 lightwave trans ceivers, and 6 lightguid e interface units (provid ed by
the PSC).