ITG Engineering Guidelines Page 73 of 378
ITG Trunk 2.0 ISDN Signaling Link (ISL) Description, Installation and Operation
The ITG card plugs into the Meridian 1 IPE shel f. A maxi mum of eight cards
can fit on one IPE shelf; each ITG card takes up two slots on the IPE shelf.
Option 11C systems operating under Class B Elect ro-Magnetic Compa tibility
(EMC) standards can only hold a total of two ca rds, divide d between the main
and expansion cabinets. This may be extended to two car ds in each main or
expansion cabinet if all cabinets are separated from each other by at least ten
meters distance. For Option 11C systems operating under Class A EMC
standards, there are no restrictions.
For Option 11C and Option11C Mini, the SDI/DCH (NTAK02BB) card
occupies one slot on the cabinet and is connecte d to t he ITG c ard throu gh th e
backplane. Only ports 1 and 3 are available for use as DCHI.
The ITG card uses a 10BaseT Ethernet port located on the card backplane I/O
connector to carry ITG system management traffic and connects to the
Embedded LAN (E-LAN).
Scope
These engineering guidelines address the design of the ITG network which
consists of:
• ITG nodes
• Telephony LANs (T-LANs) to which the ITG nodes are connected
• A corporate intranet which connects the different T-LANs together
These guidelines require that the Enterprise customer has a corporate int ranet
in place that spans the si te s w he r e th e I TG n od e s are to be installed.