NEC 2400 ipx system manual Alternate Routing OK Symbols

OFFICE DATA PROGRAMMING

3.3 Service Conditions

1.To send/receive voice information, each node will use an IPTRK circuit card. At this time, the IPTRK circuit cards in the self-node and its connected node(s) can be either in 1-to-1 ratio, respectively, or in 1- to-n (n=2 or more) relations (referred to as Point-to-Multipoint connection).

2.Be sure to use a router for connections between IP network and IPTRK circuit card.

3.A maximum of two IPTRK circuit cards per UNIT are allowed. Accordingly, a total of 16 IPTRK circuit cards can be accommodated per IMG.

4.Only voice and FAX (G3) information can be sent/received via IPTRK circuit card.

5.A call cannot be established/routed across multiple IP networks. See the following figure.

Node A		Node B
		Routing: OK
IPTRK		IPTRK
	IP Network #1
	IP Network #2	Routing: NG
IPTRK		IPTRK

6.When multiple IPTRK circuit cards are used for node-to-node connection and all the lines on an IPTRK are busy, alternate routes are available (see the figure below). However, if a router cannot be used, all the related IPTRK routes are made unavailable.

As shown, when multiple IPTRK circuit cards exist, alternate routes are available:

Node A					Node B	Node A				Node B
	BUSY						BUSY
								Intranet
	IPTRK						IPTRK		IPTRK
				IPTRK
		Intranet
	IPTRK		IPTRK				IPTRK	Intranet	IPTRK
		Alternate Routing: OK						Alternate Routing: OK
Symbols:
IPTRK:	IP Trunk

CHAPTER 3 NDA-24318

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