Add-On Boards - Vodavi STARPLUS Triad XTS Installation Manual

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Chapter 1 - Introduction
Basic Rate Interface Board
The Basic Rate Interface Board (BRIB) interface provides four Basic Rate Interface circuits. Each
circuit is comprised of two bearer (64Kbps each) and one data (16Kbps) channels (2B+D). When
a BRIB is programmed into the system, the system interprets all B channels as trunks. Thus, one
BRIB which contains four 2B+D circuits provides eight line appearances to the system. A
maximum of seven BRIBs can be installed into the system (56 B channels).
The BRIB uses the U interface of the BRI standard. Connection to the network is made via RJ45
connectors on the front edge of the board. No CSU is required to connect to the central office.
The BRIB card uses eight time slots when installed.
When ordering BRI lines from the telephone company, specify Capability P as the ordering
code. National ISDN 1 (NI-1) is supported. No other standards are supported.
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Add-on Boards: DTRU4

Add-On Boards

This section describes add-on boards, which can be installed on various types of boards to
support additional functions as shown in the following table.
Board
DTRU
DTRU4
MSGU
MSGU48
PMU
MODU
RAU
SIU
Dual Tone Receiver Unit
The dual tone receiver unit (DTRU) provides Dual Tone Multi frequency (DTMF) circuits. The two
versions of the DTRU are: the DTRU and the DTRU4.
The DTRU can be installed on the LCOB, SLIB, or DIDB to provide 2 DTMF circuits.
The DTRU4 can be installed on the LCOBE, LCOBC, SLIBE, SLIBC, T1IB, or PRIB to provide
4 DTMF circuits.
Table 1-3: Add-on Boards
Function
Two DTMF receiver circuits
Four DTMF receiver circuits
Provides message waiting light indication on SLTs SLIB
Provides message waiting light indication on SLTs SLIBE & SLIBC
Provides operating software
Provides a 19.2K baud modem for local access
Provides three relay contacts and two alarm
functions (not used)
Provides additional two RS232 serial interfaces.
The resources above are shared across the entire system.
Product Description
Position
LCOB, SLIB, DIDB
LCOBE, LCOBC,
SLIBE, SLIBC, T1IB,
PRIB, & BRIB
MPB
MPB
RAU
MISB