NEC ND-71762(E) system manual Ccis Network Modes, Associated Mode

GENERAL INFORMATION FOR CCIS

4.3 CCIS Network Modes

The signaling channels of a CCIS network can be connected in one of two ways: Associated Mode or Quasi-Asso- ciated Mode.

4.3.1Associated Mode

An Associated Mode network is configured with a signaling channel (data link) between all nodes in the network. Signaling functions for all inter-node calls are carried over these dedicated signaling channels. In an Associated Mode Network, if one of the signaling links should fail, signaling can easily be rerouted via another node. An ex- ample of an Associated Mode network is shown in Figure 2-9 below.

Figure 2-9 Associated Mode Network

NODE

A

NODE	NODE
B	C

Communication Channel

Common Signaling Channel

CHAPTER 2 ND-71762 (E)

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Issue 2