Tadiran Telecom Coral IPx 800 Series, Installation Procedure And Hardware Reference Manual

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Common Control Cards
8-1
Comm
on Contr
o
l Car
d
s
8
8.1
Common Control Cards
0
Each control card is described in detail in the
Coral Control Card Installation Manual.
The Common Control portion of the Coral IPx 800 systems provides the control
mechanism for establishing audio and data connections or calls between Peripheral
I/O ports in the system via the PCM bus. Common Control is divided into the
following functions:
„
Main processor
„
Generic feature memory
„
Database memory (DBM/DBX)
„
Flash memory card (IMC8/16)
„
Peripheral bus interface or group controller
The Common Control card set consists of an MEX-IP2 Main Processor and Database
Memory, one IMC8/16 generic feature memory baby card, an optional DBM/DBX
database memory expansion card with an optional MAP/CLA card, an HDC (High
Density Group Controller), and a PX card.
The MEX-IP2 and HDC cards reside in designated card slots in the IPx 800M cage. The
MAP/CLA and DBM/DBX cards are smaller baby cards that are mounted on the
MEX-IP2 card. The IMC8/16 card resides in a special slot in front of the MEX-IP2 card.
The card slot designation appears below each common control card slot on the front of
the card cage. For more information, see
Chapter 6 - Cage Description
.
The MEX-IP2 card is the “core” of the Coral common control. The card contains the
main processor circuitry, memory management circuitry, local bus interface and
database memory (protected against power loss with a long-life lithium standby
battery). It also provides a real-time clock and hosts the System Authorization Unit
(SAU). Additionally, the MEX-IP2 acts as a mother card to one MAP/CLA card, up to
two DBM cards, or up to four DBX cards. The main processor receives status messages
from ports in the system and determines the appropriate response based on
programming entries contained in the system database.
1 General Information