Mitel SX-2000 - Manual (Page 49)

50003510 Revision A 35
Configuration
By designing your SX-200 EL and SX-200 ML systems for maximum flexibility, Mitel Networks
gives you the capability of customizing your system to meet your requirements. Select the
system configuration and options you need today with the assurance that you can expand the
system at any time in the future.
Reliability is a key factor in the choice of any communications system. Mitel Networks has
ensured the continued reliability of the SX-200 EL and SX-200 ML system by designing to wide
tolerances and using proven components.
Usability is enhanced by the elegant simplicity of the hardware design - streamlined control
architecture, specialized peripheral cards, and flash card-based software.
The SX-200 EL system is a microprocessor-controlled telephone system that switches both
voice and data for installation up to 650 lines. It consists of separate cabinets connected by
fiber or copper cables. Up to six peripheral bays, including up to two SX-200 IP Nodes, can be
connected together. This allows for remote location of peripheral cabinets close to the devices
they support and reduces installation costs.
The 96-port control cabinet can hold two Control FIM Carriers (dual or triple) which house the
Fiber Interface Modules (FIM) that provide the communication link between the nodes of the
distributed PBX system. The Main Control Card (MCC) controls all system operations.
The SX-200 ML system can have one peripheral bay. The SX-200 EL system can have 6
peripheral bays including two SX-200 IP Nodes. The bays may be an SX-200 IP Node, an
SX-200 LIGHT peripheral cabinet, an SX-200 EL peripheral cabinet, SX-200 SPINE nodes (24
or 48-ports), ISDN Network Gateways, or PRI cards.
About the Main Control Card
The heart of the system is the Main Control Card (MCC) which interfaces to memory, a Direct
Memory Access Controller (DMAC), a Digital Signal Processor (DSP), seven DSP Receivers,
a Message Subsystem, and a DX Matrix, through its address, data, and control buses.
In the SX-200 EL system configuration, the MCC IIIEL or MCC IIIELx controls the control cabinet
and each peripheral bay through the Bay Control Cards. To control each digital bay, a Control
Dual FIM Carrier Card or a Control Triple FIM Carrier Card is installed in the main control
cabinet. The MCC IIIEL plugs directly into the SX-200 EL Control Cabinet backplane. The
MCCIIIELx must be installed in the SX-200 ELx cabinet to enable the three links to each
peripheral bay.The SX-200 EL system can support a maximum of seven bays.
In the SX-200 ML system configuration, the MCC IIIML supports the control cabinet and one
additional peripheral bay through its Bay Control Card. The MCC IIIML plugs directly into the
SX-200 ML Control Cabinet backplane.The SX-200 ML system can support a maximum of two
bays.
In the SX-200 ML (FD) system configuration, the MCC II controls the digital bay through the
Bay Control Card to which it is attached.