Avaya DEFINITY Server R Manual page 369

Add Center Stage Switch
Figure 6-27
configuration when low inter-SN traffic is expected.
3
Figure Notes
1. Switch Node (SN) 1
2. Switch Node 2
3. PPN Cabinet
4. EPN Cabinet 1
Figure 6-27. 2-SN CSS with Low Inter-SN Traffic
Fiber Engineering for 2 SNs
Switches with 2 SNs are connected by 1 to 7 fiber links to provide sufficient
switching fabric at the CSS. The traffic in all locales within a single SN does not
require engineering. Only traffic that links from locales in 1 SN to the other SN
(and vice versa) must be engineered. The traffic that links across these fibers is
simply the sum of the traffic that links to locales located in the other SN.
555-233-115
shows 2 SNs used as a CSS for up to 29 EPNs. Use this
1
4
8
5 6
5. EPN Cabinet 14
6. EPN Cabinet 15
7. EPN Cabinet 29
8. Inter-SN Connection (1 fiber)
Issue 5 October 2002
2
7
cydfpbx1 RPY 081897
6-49