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Issue 6 January 2008 103
The G650, SCC1, and MCC1 Media Gateways can connect to a combined IP-PNC and
fiber-PNC system using either IP or fiber connections. The CMC1 Media Gateway can be
IP-connected only and cannot be fiber-connected in any of the combined IP-PNC and fiber-PNC
configurations. The following table lists, by server, the media gateways and connection methods
that can be simultaneously supported in a combined IP-PNC and fiber-PNC configuration.
Media Gateway Capacity
The following capacity rules apply to a combined IP-PNC and fiber-PNC configuration:
Each combination of fiber-PNC and IP-PNC can support up to 64 port networks. When the
fiber-PNC portion is supported by CSS, it can have a maximum of 44 CSS PNs but the system
can be expanded to 64 PNs by adding an additional 20 IP-connected PNs. When the fiber-PNC
portion is direct-connect, with two or three direct-connect PNs, the IP-PNC portion can have up
to 61 or 62 IP-connected PNs, respectively.
Server Supported
Central
Gateways
IP-
Connect
Direct-
Connect
CSS/ATM-
Connect
1
1. For any system, either CSS or ATM connections may be used in a combined IP-PNC and fiber-PNC
network, but not both.
Reliabilities Supported
S8500/
S8500B
CMC1 yes no no single control and bearer
only
G650 yes yes no same as CMC1
SCC1 yes yes no same as CMC1
MCC1 yes yes no same as CMC1
S8700
series
CMC1 yes no no single control, single bearer
only
G650 yes yes yes
(requires
an MCC1
for CSS)
● single control and
bearer
● duplicated control
only
● duplicated control
and bearer
SCC1 yes yes yes
(requires
an MCC1
for CSS)
same as G650
MCC1 yes yes yes same as G650