Meridian America 61 Benutzerhandbuch

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System organization and capacities
The SL-1 System is basically organized into different kinds of systems and
can support from 32 to 10,000 analog or digital lines, depending on traffic
and feature requirements. System configurations are determined by
customer requirements and the physical limitations of the equipment. Both
AC and DC power options are available.
The following figures show a high level view of each system configuration.
For information on power packs, cooling system, and system monitor, refer
to the  System overview  (553-3001-100) document, Both AC and DC power
is available.
Option 21
This cost effective unit comes in two sizes. The standard version is a
single-CPU system that may contain up to four 
 It can be configured
with an optional fan shelf for up to two 
 (AC or DC power options).
The modified version, Option 
 is an optimized single-module AC
system. See Figure l-l.
Options 51 and 61
Option 51 is a CPU/Network-based (NT-type) system; one shelf contains
single CPU/half group; it serves from 800 to 1,000 lines. Option 61 is a
CPU/Network-based (NT-type) system; two shelves contain dual CPU/full
group; it serves from 1,000 to 2,000 lines. See Figures 2 and 3.
System engineering 553-3001-l 51