NEC Univerge SV8100 System Hardware Manual page 334

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If set for T1, the T1/PRI blade provides 24 trunks in a single universal

slot. These trunks can be one of the following:

Ground Start

ANI/DNIS E&M Trunks

T1 provides advanced digital trunking and conserves universal slots.

For example, a system with 12 loop start trunks, two tie lines and six

DID trunks uses up to five universal slots. With T1, all these trunks

are available in a single universal slot. This frees up four additional

universal slots for other uses.

If set for PRI, each T1/PRI blade provides 24 PRI (23 B & 1 D)

channels running at 1.544Mbps with 64Kb/s clear channel. This

blade supports the following PRI services:

Basic PRI Call Control (BCC)

Display of incoming caller's name and number (when allowed by the

Speech and 3.1 KHz audio

When installed, CD-PRTA uses the first block of 24 consecutive

trunk ports. For example, if a COIU blade is installed for trunks 1~8,

the CD-PRTA automatically uses trunks 9~32. If the COIU blades

are installed for trunks 1~8 and 17~24, CD-PRTA uses trunks 25~48.

The CD-PRTA cannot use trunks 9~16 (even if available) since they

are not part of a consecutive block of 24 trunks. Each CD-PRTA

requires 24 ports in the system, even if not all the ports are used,

otherwise the blade does not function.

The CD-PRTA requires one universal slot and provides:

1.5M or T1 Function

Refer to the following tables for maximum upgrade capacities of the

CD-PRTA blade:

Table 2-6 SV8100 Maximum 9.5" Gateway and 19" System Capacities

– Blades on page 2-13

Table 2-7 SV8100 Maximum 9.5" Base and Expansion System

Capacities – Blades on page 2-15

UNIVERGE SV8100

Installing the SV8100 Blades