DEFINITY Enterprise Communications Server Release 7
Maintenance for R7r
555-230-126 Issue 4
June 1999
Hardware Configurations

2-2Multi-Carrier Cabinet

2
■-48V DC battery plant
■Global MCC uses 50-60 Hz at 200-240 VAC power source

Figure 2-1. Multicarrier Cabinet (J58890A) Configurations

Processor Port Network Cabinet

The PPN cabinet, pictured above, is the primary cabinet in all G3r systems. It

cont ains t he Swi tch Pr oces sing Eleme nt (SPE) t hat c ontro ls th e syst em and one

Port Network that is interconnected by the daisy-chained TDM/LAN bus. If the

system has a CSS, the PPN cabinet also contains a switch node. The ind ividual

carriers are described in following sections.

The A position always contains a PPN Control Carrier (J58890AP), also known as

the Proc ess or Car rier , whic h hol ds t he SPE ci rcui t pac ks. If the syste m has a

dup lica ted SPE, the B posi tion hold s a se cond PPN Co ntrol C arri er. At leas t one,

and up to four, Port Carriers (J58890BB) c an be located in the other four carrier

positions, depend ing on traffic needs and whether the system uses those

positions for other types of ca rriers. In general, Port Carriers are added i n the

sequence, B-C-D-E, unless those positions are used otherwise, as follows.

J58890AP
J58890BB
or
Port
Carrier Carrier
PPN Control
Duplicated
Carrier
PPN Control
J58890AP
J58890SA
or
Duplicated
Switch
Node
Carrier
Port
Carrier
J58890BB
Power
Distribution
Unit (G Carrier)
Port
Carrier
J58890BB
J58890SA
or
Switch
Node
Carrier
Port
Carrier
J58890BB
Processor Port Network
J58890BB
J58890BB
J58890BB
Power
Distribution
Unit (G Carrier)
or
Duplicated
Switch
Node
Carrier
Port
Carrier
or
Switch
Node
Carrier
Port
Carrier
Port
Carrier
Expansion
Control
Carrier
Port
Carrier
Expansion Port Network
J58890SA
J58890SA
J58890AF
J58890BB
D Carrier
A Carrier
B Carrier
C Carrier
Fan Unit
E Carrier