STARPLUS STSe Key System, Руководство по установке

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1-8 Add-On Boards
Chapter 1 - Introduction
STARPLUS STSe - Installation Manual August 2005
Primary Rate Interface Board
The Primary Rate Interface Board (PRIB) 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, the system interprets all B channels as trunks. Thus, one PRIB which contains 23B+D
circuits provides 23 line appearances to the system. The PRIB card uses 24 time slots when
installed.
The PRIB must usually be used in conjunction with a Channel Service Unit (CSU). Connection is
made via a RJ-45 from the PRIB to the CSU.
The PRIB accepts two DTRU4 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.
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Add-on Boards: DTRU4
Add-On Boards
Message Wait Unit
The Message Waiting Unit (MSGU48) provides a 90V message voltage to light the message
indicator on single line telephones.
One MSGU can be installed on each SLIB4/SLIBC (required if message wait indication is
needed).
Modem Unit
The Modem Unit (MODU) provides a communication interface for remote maintenance and
remote PC Admin.
The MODU allows the system to function as follows:
†
Operates at 9600 baud and installs in the BKSU.
†
Provides an asynchronous modem for access to the system database and fault reporting
features from a remote site.
†
May be connected to a pre-selected CO Line through the system-switching matrix.
The MODU port is independent of the standard RS-232C port, allowing system database access,
etc., without the need to interrupt the SMDR output.
Phase Lock Loop Unit
The Phase Lock Loop Unit (PLLU) provides clocking for T1, required if T1 card is installed.
The PLLU supplies a 32.768MHz clock to GSXD by either internal clock generator or clock
received from the trunk card (e.g. T1IB).
Add-On Module Function Board
MSGU48 Provides message waiting light indication on SLTs SLIB4/SLIBC
MODU Provides a 9600-baud modem for local access MBU
PLLU Provides clocking for T1board MBU