Primary Rate Interface Board (Prib) - STARPLUS Triad 1 Product Description Manual

Peripheral Boards

Primary Rate Interface Board (PRIB)

This interface provides one Primary Rate Interface circuit. Each circuit contains 23 bearer and
one data channel (23B+D). When a PRIB card is programmed into the
system interprets all B channels as trunks. Thus, one PRIB which contains 23B+D circuits
provides 23 line appearances to the
installed into the system. The PRIB card uses 24 time slots when installed.
The PRIB must be used in conjunction with a Channel Service Unit (CSU). Connection is made
via a DB15 from the PRIB to the CSU.
The PRIB accepts two DTMF-A boards.
When ordering PRI lines from the telephone company, specify ESF framing and B8ZS line
coding. PRI only supports National ISDN 2 (NI-2). No other standards are supported.
Vodavi has successfully integrated its PRI ISDN with the Lucent 5 ESS, Siemens,
Stromburg Carlson, and the DMS100 Central Offices. Vodavi ISDN should work with
all Central Office switches, but this has not been verified. Therefore, some delays in
service may be experienced.
Figure 10-9: PRIB (Primary Rate Interface Board)
Chapter 10 - Triad 1/2 System Configuration
Triad 1/2 system. A maximum of two PRIB boards may be
10-13
Triad 1/2 system, the