Avaya S8700 - Page 478

Maintenance Object Repair Procedure
555-233-142
8-1174 Issue 1 May 2002
Tone-Clock and the Reliability Configuration
A Tone Clock circuit resides on each IPSI board. For increased reliability, there is
a duplicated server, one in active mode and one on standby. However, there is
only one control network and one IPSI per port network as shown in Figure 8-50.
Therefore there is only one Tone Clock circuit per port network.
Figure 8-50. S8700 IP Connect Duplex Reliability Configuration
For descriptions of components and connections numbered above, see table below.
# Description of Components and Connections in Figure 8-50
1 S8700 Media Server 1 - two are always present, one in a active mode and the other on standby.
2 S8700 Media Server 2 - two are always present, one in a active mode and the other on standby.
3 Duplication Interface - The Ethernet connection between the two S8700 Media Servers.
4 Services Interface - The S8700 Media Servers dedicated Ethernet connection to a laptop. This
link is active only during on-site administration or maintenance and the services interface can
link to the non-active server through a telnet session.
112
13 24
CONSOLE
Ethernet 2
Ethernet 1 Ethernet 1
Ethernet 0
cydsdup KLC 032002
1
1
1
12
2
2
3
4 4
5
6
7 7
PN 1
8 8
PN 2
8
PN
10
IPSI IPSI
9 9
100bT
LINK
TRMT
RCV
BBI
LINK
TRMT
RCV
100bT
LINK
TRMT
RCV
BBI
LINK
TRMT
RCV
100bT
LINK
TRMT
RCV
BBI
LINK
TRMT
RCV
9
IPSI