Lucent Technologies DEFINITY Enterprise Communications Server Release 8.2 System Description Manual

							DEFINITY Enterprise Communications Server Release 8.2
System Description  555-233-200  Issue 1
April 2000
Cabinets, Carriers, and Circuit Packs 
101 Carriers in SCCs 
J58890H  Port Cabinet 
The Port Cabinet is located in the PPN and in EPNs. It contains ports and an interface to 
an Expansion Control Cabinet. The Port Cabinet has optional port circuit packs in port 
slots 1 to 18. In a critical-reliability system, these can include a tone-clock circuit pack in 
slot 1 and expansion interface circuit packs in slots 2 and 3. A neon power unit can be 
installed in slots 17 and 18. See Figure 45 for a representative example.
The AC or DC power supply, located at the right side of the cabinet, supplies power to the 
cabinet. See Table 23 for the Port Cabinet rear connector descriptions.
Figure 45.Port Cabinet (J58890H) (Front) 
POWER SUPPLYBTON E-
CLOCK
T
N
5
7
0T
N
5
7
0 T
N
2
1
8
2
B
POWER UNIT
1617 18155678910111213143421
676B
or
WP-91153
(BRG) Port/Service Port Port/Service
EXPN
INT FCEXPN
INTFC
1
5
8
P
B
L
A
N
K 1
5
8
J
B
L
A
N
K1
5
8
P
B
L
A
N
K
Service
ccdf0008 RPY 081297 
						

							Cabinets, Carriers, and Circuit Packs 
102 Carriers in SCCs 
DEFINITY Enterprise Communications Server Release 8.2
System Description  555-233-200  Issue 1
April 2000
Ta b l e  2 3 .Port Cabinet (J58890H) Connectors
Connector Function
2 to 3 (B2 to B3) EI port that provides an interface for the fiber optic cable between 
the EI circuit pack in slot 2
1 or 3 and another port network (PN)
1 to 18 (B1 to B18) Interface ports between circuit packs and the cross-connect field
1.In systems using ATM-PNC, the fiber connectors for the OC-3/STM-1 interfaces to the
ATM switches are located on the faceplates of the TN2305/TN2306 circuit packs. 
						

							DEFINITY Enterprise Communications Server Release 8.2
System Description  555-233-200  Issue 1
April 2000
Cabinets, Carriers, and Circuit Packs 
103 Carriers in SCCs 
J58890T  Compact Modular Cabinet 
(csi model)
The Compact Modular Cabinet is an economical, small-footprint alternative to a Single- 
Carrier Cabinet. It can mount on a wall or on the floor, and uses an AC-only power supply. 
The control carrier contains 2 control slots: the processor has to be in slot 1 and the 
tone-clock in slot 2. Slots 3 to 10 can contain optional port and service circuit packs. See 
the figure below.
Figure 46.J58890T Compact Modular Cabinet (csi model) (Left Side)
scdfleft KLC 110497
MAJ
MIN 
						

							Cabinets, Carriers, and Circuit Packs 
104 Carriers in SCCs 
DEFINITY Enterprise Communications Server Release 8.2
System Description  555-233-200  Issue 1
April 2000
The connectors on the right side of the cabinet are shown in Figure 47. 1 to 10 25-pair 
connectors interface between port circuit packs and the cross-connect field or a cable 
access panel.
Figure 47. CMC (J58890T) (Right Side)
scdfrf2 KLC 061097 
						

							DEFINITY Enterprise Communications Server Release 8.2
System Description  555-233-200  Issue 1
April 2000
Cabinets, Carriers, and Circuit Packs 
105 Carriers in SCCs 
Up to three Compact Modular Cabinets can be combined in a single installation. Port and 
service circuit packs fill all ten slots in the second and third cabinets. The first cabinet (A) 
installs in the middle position, the second cabinet (B) installs on the top, and the third 
cabinet (C) installs on the bottom. See Figure 48. 
Figure 48. Typical Compact Modular Cabinet (csi model) Installation (Front)
Floorindf3cmcKLC110497
A
C
B 
						

							Cabinets, Carriers, and Circuit Packs 
106 Minimum Cabinet Configurations 
DEFINITY Enterprise Communications Server Release 8.2
System Description  555-233-200  Issue 1
April 2000
Minimum Cabinet Configurations
Minimum cabinet configurations in MCCs and in stacks of Single-Carrier Cabinets serve 
as the foundations on which to build cabinets in direct-connect systems and Center Stage 
Switch (CSS)-connected systems. 
NOTE:
The CMC cannot be duplicated but may be connected to other CMC cabinets.
The following are the minimum required circuit packs:
nTo n e - c l o c k  
nExpansion interface (EI)
nExpansion port network (EPN) maintenance 
The following criteria describe a minimum cabinet configuration:
nCabinet interconnection options (direct-connect and CSS-connected) 
nSystem duplication options (standard reliability, high reliability, and critical 
reliability)
nTraffic engineering to determine the number of port networks
Table 24, Table 25 and Table 26 list the minimum required carriers and circuit packs in 
PPN and EPN cabinets or cabinet stacks.
Table 24. Minimum Requirements for PPN Cabinet
Duplication Option Connection OptionControl 
CarriersSwitch Node 
CarriersTo n e
Clocks
Standard reliability direct or ATM 1 0 1
CSS 1 0 or 1
1
1.The1st SN is located in the PPN (normal) or EPN. The 2nd and 3rd are located in
an EPN to support up to 44 PNs.
1
High reliability direct or ATM 2 0 2
CSS 2 0 or 1
12
Critical reliability
(Category A only)direct or ATM 2 0 2
CSS 2 0 or 2
12
ATM Network Duplication
(Category A only)ATM 1 0 2 
						

							DEFINITY Enterprise Communications Server Release 8.2
System Description  555-233-200  Issue 1
April 2000
Cabinets, Carriers, and Circuit Packs 
107 Minimum Cabinet Configurations 
Table 25. Minimum Requirements for an EPN Cabinet
Duplication 
Option Connection OptionExpansion 
Control 
CarriersSwitch 
Node 
CarriersTo n e -  
ClocksAT M  o r  
Expansion
Interfaces 
In EPN
Standard 
reliabilitydirect or ATM 1 0 1 Equals 
number of 
PNs
CSS 1 0 or 1
1
1.The1st SN is located in the PPN (normal) or EPN. The 2nd and 3rd are located in an
EPN to support up to 44 PNs. Up to 3 EPNs can be directly-connected.
11
High 
Reliabilitydirect or ATM 1 0 1 Equals 
number of 
PNs
CSS 1 0 or 1
111
Critical 
reliability
(Category A 
only)direct or ATM 1 0 2 Twice 
number of 
PNs
CSS 1 0 or 2
122
ATM 
Network 
Duplication
(Category A 
only)ATM 1 0 2 2 
						

							Cabinets, Carriers, and Circuit Packs 
108 Minimum Cabinet Configurations 
DEFINITY Enterprise Communications Server Release 8.2
System Description  555-233-200  Issue 1
April 2000
Standard Reliability Systems
The standard reliability configuration is available in all systems, but it is the only one that 
is available for the DEFINITY ECS csi. It has no duplicated hardware, and includes: 
nOne control carrier
nOne tone-clock circuit pack per PN
nPort networks interconnected by single fiber pairs
Optional carriers in the MCCs are port carriers that can be added as required. In R7r or 
later, an SN carrier can be added to Position
 E as required. Optional port carriers are 
determined by traffic engineering. Table 26. Minimum Requirements for a Two-PN Multi-Carrier Cabinet EPN 
(R7r and later)
Duplication 
OptionConnection
OptionControl
CarriersSwitch Node 
Carriers Tone-ClocksAT M  o r  
Expansion
Interfaces
Standard 
reliabilitydirect or 
ATM10 2 4
CSS 1 0 2 2
High reliability direct or 
ATM10 2 4
CSS 1 0 2 2
Critical reliability
(Category A only)direct or 
ATM10 4 8
CSS 1 0 4 4
ATM Network 
Duplication
(Category A only)ATM 1 0 4 4 
						

							DEFINITY Enterprise Communications Server Release 8.2
System Description  555-233-200  Issue 1
April 2000
Cabinets, Carriers, and Circuit Packs 
109 Minimum Cabinet Configurations 
High Reliability Systems
High reliability systems require:
nDuplicate control carriers in the PPN cabinet
nDuplicate PPN tone-clock circuit packs, one in each Control Carrier.
nOne tone-clock circuit pack per EPN
nPort networks interconnected by single fiber pairs
— The PPN requires duplicate connectivity to the switch node
— The switch node requires duplicates switch node clocks. The switch node 
carrier is provided in the PPN cabinet for a CSS-connected DEFINITY ECS r.
— For ATM inter-PN connectivity, the PPN requires two links to the ATM switch 
(Category A only).
Critical Reliability Systems (Category A only)
Critical reliability provides full duplication of the SPE, inter-PN connectivity, and 
Tone-Clocks. These systems require:
nDuplicate control Carriers in the PPN cabinet and EPN cabinet
nDuplicate tone-clock circuit packs in the PPN cabinet and EPN cabinets
nPort networks interconnected by duplicated cables
— Direct connect systems use duplicate inter-PN connectivity for each PN (EI 
and fiber)
— Switch connect systems duplicate the CSS and duplicate PN-to-SN 
connectivity (one PN fiber to each of the Switch Node Carriers in the 
duplicated SN)
— For a R7r or later ATM inter-PN connectivity the ATM links to the ATM switch 
or switches are duplicated. The ATM switches may or may not be duplicated. 
This depends on the ATM switch that is being used.
nDuplicate Switch Node Carriers in the CSS
nPacket R7 and later systems will require the Maintenance/Test circuit pack.
NOTE:
Critical reliability systems require the duplication of carriers in PPN and EPN 
cabinets and cabinet stacks.  
						

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110 Direct Connect Cabinet Configurations 
DEFINITY Enterprise Communications Server Release 8.2
System Description  555-233-200  Issue 1
April 2000
ATM Network Duplication (Category A only)
DEFINITY ECS R8r and later ATM Network Duplication systems will require the full 
duplication of the inter-PN connectivity and the Tone-Clocks. These systems require:
nDuplicate Tone-Clocks in each Expansion Port Network (EPN)
— Both the Expansion Control Carrier and the Port Carrier are required in each 
EPN, with a Tone-Clock and an ATM interface residing in each of the two 
carriers. The MCC and SCC stack are compatible EPNs. The CMC EPN is not 
supported.
— If the PPN has only one SPE complex located in the A carrier of the MCC 
cabinet, the recommendation is for the ATM interfaces to be placed in slot 2 of 
both the B and C carriers. Another alternative would be to place the ATM 
interfaces in slots 2 and 3 of the B carrier. This will result in the loss of 
complete connectivity duplication (because of a common power failure group) 
and the full advantage that is attainable from the ATM Network Duplication.
nDuplicate inter-PN connectivity
— The ATM links to the ATM switch will be duplicated for inter-PN connectivity
— The ATM switch or switches may or may not be duplicated, depending on the 
ATM switch that is being used.
nA TN771 facility test pack is required in each PPN of an R8r system. In an ATM 
network duplication R8r system, the TN771 is required both in the PPN and in each 
EPN.
nDirect Connect systems are not supported.
Direct Connect Cabinet Configurations
A direct connect system configuration could connect cabinets directly to each other via 
fiber optic or copper pairs. There is no intervening switch or hub. A direct connect system 
can contain up to 3 port networks, including 1 PPN and 2 EPNs (a port network can 
consist of a Single-Carrier Cabinet, a stack of Single-Carrier Cabinets, or a single 
Multi-Carrier Cabinet).