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
5-56High Reliability
5
Collocated Port Networks
For a high reliability system with 1 colloc ated expansion port networ k, use 1 fiber
optic cab le and 2 lightwave transceive rs to directly connec t the networks.
For a high reliability system with 2 colloc ated expansion por t networks, use 3
fiber optic c ables and 6 lightwave transceivers to directly c onnect the networks.
NOTE:
Based on floor plan cons iderations, the length of these fib er cables may
vary. 20 foot (6.1 m) cables are normally adeq uate for a Release 8 with
2 port networks.
For collocated cabinets, the fiber optic cables should be routed directly from the
PPN to th e EPN cabin et. If a “DEFINITY style” PPN cabinet is collocated with
another “DEFINITY style” EPN cabinet, the preferred routing is to run the c ables
up
the cable tray and out the to p of the PPN cabinet. The cables are then run to
the other cabinet, through the top of the cabinet, and down the cable tray to the
desired carrier level.
NOTE:
Refer to
DEFINITY E nterprise Communications Server Release 8 Installation and Test for Multicarrier Cabinets
, for additional guid elines about fiber
routing.
If a “DEFINITY style” PPN cabinet is collocated with either a small cabinet,
medium cabinet, or sing le-carrier cab inet stack, the preferred routing is to run the
cables
down
the cable tray and out the b ottom of the PPN cabinet. The cables
are then run to the EPN cabinet and up the outsid e of the rear panels to the
desired carrier level.
Fiber-Remoted Port Networks
For a high reliability system with 1 fiber-remoted expansion port network, 2 fiber
optic cab les, 2 lightwave transceivers, and 2 lightguide interc onnect units
(provided by the PSC) are required.
For a high reliability system with 2 fiber-remoted ex pansion port networks, 6 fibe r
optic cab les, 6 lightwave transceivers, and 6 lightguide interc onnect units
(provided by the PSC) are required.
For fiber-remoted cabinets, route the c ables down the c able tray and out the
bottom of the cabinet to the cross-connect field where the lightguide interc onnect
units are located.
In either case, use cable tie s to secure the cable ag ainst the walls of the cable
tray at the cable tie positions built into the trays.