NEC Neax 2400 Ipx Fusion Network System Manual

CHAPTER 2 NDA-24299
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GENERAL
Node
4. Node
A Fusion network consists of the following types of nodes:
 Network Control Node
The Network Control Node, which must be assigned on a Fusion network, manages other nodes on the
network. This node has the Centralized-MAT to collect fault information from other nodes on the network.
Multiple nodes cannot be assigned as a Network Control Node.
 Local Node
All nodes other than the Network Control Node are called Local Nodes. Fault information...

NDA-24299 CHAPTER 2
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GENERAL
Data Memory Configuration
5. Data Memory Configuration
Each node on a Fusion network has the following three kinds of Data Memory:
 Data Memory (DM)
 Local Data Memory (LDM)
 Network Data Memory (NDM) -  Programmable only by the NCN.
When the contents of the NDM are changed at NCN, the new data is automatically copied to the NDM of each
node. The NDM of the NCN functions as primary memory. Figure 2-7 shows how a telephone number change
is performed in a...

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GENERAL
Fusion Network Examples
When the NDM (primary) is modified, the new data is automatically copied. See Figure 2-8
Figure 2-8   Network Data Memory Copy
6. Fusion Network Examples
Figure 2-9 and Figure 2-10 show examples of Fusion networks. When incorporating the Fusion system with the
existing CCIS network, connect all nodes via CCIS links.
Note:To connect a CCIS network and Fusion network, use STNs and TELNs respectively.
Figure 2-9   Closed Numbering...

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GENERAL
Fusion Network Examples
Figure 2-10   Open Numbering Fusion-CCIS Network
[conditions for telephone number digits]
When incorporating the Fusion system with the CCIS network, consider the conditions in Table 2-1 as to the 
available telephone number digits.
Table 2-1 Available Telephone Number Digits
×: Available -: Not available
Note:When the network is Open Numbering, the “digits” in the table above must be the number of “office code
digits + telephone...

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GENERAL
Tandem Connections via Fusion Link
7. Tandem Connections via Fusion Link
Tandem connections via FCCS-ACIS can be established. In Figure 2-11, STN (A) can place a tandem call via
FCCS-ACIS.
Figure 2-11   Tandem Connections via Fusion Link
430000TELN410000
TELN
  
... ... ... ... ...... ... ... ... ...... ... ... ... ...... ... ... ... ...
STN (B) STN (A)
  
... .. . ... ... ...... .. . ... ... ...... .. . ... ... ...... .. . ... ... ...
LN
Node A
CO
FCCS...

NDA-24299 CHAPTER 3
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CHAPTER 3 SYSTEM CONFIGURATION
Fusion systems can be divided into the following two types:
 Fusion system with FCH
 Fusion system without FCH
Note:FCH (Fusion Call Control Handler) : PA-FCHA
This chapter explains the system configuration of each Fusion system.
1. FUSION System without FCH
An example system configuration of Fusion system which does not use a DTI to carry D-channel is shown
below. In this configuration, Fusion link is established between nodes via...

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SYSTEM CONFIGURATION
Fusion System with FCH
2. Fusion System with FCH
2.1 System Configuration
A sample system configuration of Fusion system which uses a DTI to carry D-channel is shown below. In
this configuration, Fusion link is established between nodes via the T1 link. See Figure 3-2 below.
Figure 3-2   Fusion System Configuration with   FCH
PCI Bus
PCI Bus 10 Base T
............
Fusion Link
D/I D/I TSW /INTTSW /INT
MUXMUX
FCH
FCH FCHFCH DTIDTI
HUB
HUB
LANI...

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SYSTEM CONFIGURATION
Fusion System with FCH
Note:
When a direct connection is added to the existing Fusion system with FCH card between the two nodes, it
is required to execute Make Busy operation (MB Key ON/OFF) on the FCH cards to prevent from packet
loop.
Figure 3-3   Add a Direct Connection to Fusion System with FCH
On other occasions for adding direct connection (connect cross cable between the HUBs) to the Fusion
network consists of multiple nodes, also...

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SYSTEM CONFIGURATION
Fusion System with FCH
Figure 3-4 shows LANI, HUB, FCH, and DTI in a fully redundant configuration. 
Figure 3-4   Redundant Configuration (LANI, HUB, FCH, and DTI)
Figure 3-5 shows HUB, FCH, and DTI in a redundant configuration.
Figure 3-5   Redundant Configuration (HUB, FCH, and DTI)
Figure 3-6 shows FCH and DTI in a redundant configuration.
Figure 3-6   Redundant Configuration (FCH and DTI)
FCH0
FCH1DTIDTI HUB1
....
....
HUB0 CPU#0
CPU#1
10...

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SYSTEM CONFIGURATION
Fusion System with FCH
Figure 3-7   Non-Redundant Configuration
Note:
Be sure that the system configurations shown below are not available. The Node composed of dual-HUB
system cannot apply to the opposite side against a Node with single-HUB configuration.
Figure 3-8   Unavailable System Configurations
PCI Bus
FCHDTI
....
HUB LANI#0
CPU#0
PCI Bus
LANI#1 CPU#110 Base T
10 Base T10 Base T
In this case, no redundancy is taken as to Fusion link....