– INT-7 –
1.4.2 LAN2 Accommodation
LAN2 mainly accommodates the devices for operation/administration and some for call controlling. They need
to keep links with Telephony Server when system changeover is performed in dual configuration system. In
each case where the system is in single configuration or dual configuration, IP address (ACT) is basically as-
signed to the devices as Telephony Server address.
Each communication using LAN2 as its interface is listed in the table below, where relationships between each
application and socket are shown.
EMA MAIN
PWR
SYS
ALM
SYS 1
MB
(SUB)
SYS
LOCK
SYS
SEL
PFT
LINK OPE
ALM
INIT
PBI No.
SYS 0
12 12
SWO0 SWO1
ALM
ACT
PWR
ALM
ACT
PWR
LINE SPEED
LINE SPEED
1
2
LINE SPEED
LINE SPEED
3
4
LINE SPEED
LINE SPEED
1
2
LINE SPEED
LINE SPEED
3
4
LAN3
LAN4
LAN1
LAN2
PWR
LOAD
LAN1 LAN2
ACT
ALM
TxRx LINK TxRx LINK
CCIS
over IP
Maintenance
Console
Server
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