ISL in shared mode
In shared mode, PRI hardware is required in addition to the existing
TIE lines interface
cards.
• NT8D15 Analogue trunk card(s)
• NTAK02 SDI/DCH, NTAK10 2.0 Mb DTI, NTAK79 2.0 Mb PRI, or NTBK50 2.0 Mb PRI
card(s)
Figure 35: ISL in shared mode
ISL in dedicated mode using leased line
The following hardware is required:
•
NTAK02 SDI/DCH D-channel handler interface
• A modem capable of the following: (such as Ventel 2400-33 or 2400 Plus II)
- minimum of 2400 baud
- synchronous operation
- must support leased line (also known as private line or point-to-point) operation
2.0 Mb ISL maintenance
166 ISDN Primary Rate Interface Maintenance November 2011
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