Lucent Technologies Release 7 User Manual
DEFINITY Enterprise Communications Server Release 7
Maintenance for R7r
Maintenance for R7r
555-230-126
Issue 4
June 1999
Hardware Configurations
2-3
Carriers in Multi-Carrier Cabinets
2
If the system has a Center Stage Switch, the E position holds a Switch Node
Carrier. In a CSS system with duplicated PNC, the D position holds a Switch
Node Carrier that duplicates the one in E position. In large systems requiring a
CSS with two Switch Nodes, the second SN is located in an EPN cabinet, for both
simplex and duplicated systems. Systems that have added a CSS configuration
after the original installation may have their first SN in an EPN cabinet.
Carrier. In a CSS system with duplicated PNC, the D position holds a Switch
Node Carrier that duplicates the one in E position. In large systems requiring a
CSS with two Switch Nodes, the second SN is located in an EPN cabinet, for both
simplex and duplicated systems. Systems that have added a CSS configuration
after the original installation may have their first SN in an EPN cabinet.
Expansion Port Network Cabinets
When used for an EPN, the multicarrier cabinet supports one Port Network with a
daisy-chained TDM/LAN bus, or, optionally, two separate PNs if the cabinet does
not contain a Switch Node. A cabinet with two PNs has two separate TDM/LAN
bus daisy-chains. One TDM/LAN bus between carriers in positions A, B and C
supports the first PN, and another TDM/LAN bus between positions D and E
supports the second PN.
daisy-chained TDM/LAN bus, or, optionally, two separate PNs if the cabinet does
not contain a Switch Node. A cabinet with two PNs has two separate TDM/LAN
bus daisy-chains. One TDM/LAN bus between carriers in positions A, B and C
supports the first PN, and another TDM/LAN bus between positions D and E
supports the second PN.
shows locations of carriers in EPN cabinets.
Each EPN cabinet contains one Expansion Control Carrier (J58890AF) located in
the A position. In cabinets with one PN, up to four Port Carriers are added as
needed in the sequence B-C-D-E, unless the D or E positions are used for a
Switch Node. Cabinets with two PNs use optional Port Carriers in the B position,
and then the C position for the first PN (above the fans). The second PN, (below
the fans), is configured with the first Port Carrier in the E position and an optional
second Port Carrier in D position.
the A position. In cabinets with one PN, up to four Port Carriers are added as
needed in the sequence B-C-D-E, unless the D or E positions are used for a
Switch Node. Cabinets with two PNs use optional Port Carriers in the B position,
and then the C position for the first PN (above the fans). The second PN, (below
the fans), is configured with the first Port Carrier in the E position and an optional
second Port Carrier in D position.
In large systems with a CSS that requires two Switch Nodes, the second SN is
located in an EPN cabinet (this is usually cabinet number 2, PN number 2). This
EPN may not be remoted by a DS1CONV complex. An EPN with an SN has a
Switch Node Carrier in E position. In systems with duplicated PNC, (Critical
Reliability option), the D position holds another Switch Node Carrier that
duplicates the one in E position.
located in an EPN cabinet (this is usually cabinet number 2, PN number 2). This
EPN may not be remoted by a DS1CONV complex. An EPN with an SN has a
Switch Node Carrier in E position. In systems with duplicated PNC, (Critical
Reliability option), the D position holds another Switch Node Carrier that
duplicates the one in E position.
Carriers in Multi-Carrier Cabinets
PPN Control Carrier (J58890AP)
The PPN Control Carrier contains dedicated slots used for circuit packs that
compose the switch processing element (SPE). It does not contain port circuit
pack slots. This carrier always resides in position A of the PPN cabinet. In a
system with a duplicated SPE, a second PPN Control Carrier resides in the B
position of the PPN cabinet.
compose the switch processing element (SPE). It does not contain port circuit
pack slots. This carrier always resides in position A of the PPN cabinet. In a
system with a duplicated SPE, a second PPN Control Carrier resides in the B
position of the PPN cabinet.