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ITG Trunk 2.0 ISDN Signaling Link (ISL) Description, Installation and Operation
246
Upgrade an ITG Trunk 1.0 node to
support ISDN signaling trunks
ITG Trunk 1.0 customers can upgrade their systems to ITG 2.0 to include
ISDN Signaling Link (ISL) capabilities. An upgraded ITG Trunk 2.0 node
can support 8-port and 24-port ITG Trunk cards in the same node. You must
upgrade all eight-port cards in a node to ITG ISL software. ITG Trunk 2.0
also supports interworking between ITG ISL Trunk nodes and ITG 1.0 (Basic
Trunk) nodes in the same network.
Upgrade procedure summary
1 If required, select at least one 8-port trunk card to support DCHIP
functionality. In some cases, a new 24-port card will support DCHIP
functionality.
2 Install DCHIP PC Card and pigtail cable in the selected 8-port trunk card.
3 Remove all ITG Trunk 1.0 software and configuration files from the
8-port cards.
4 Install new ITG ISL Trunk software on the 8-port cards.
5 Remove ITG 1.0 configuration data from Meridian 1.
6 Configure the upgraded cards as if you were performing a new ITG 2.0
24-port installation.
Note: When a node includes 8-port and 24-port cards, you must upgrade
all 8-port cards to the 2.0 software. the standard configuration is to have
the 24-port card support the DCHIP functionality.