Mitel SX-200 Documentation page 709

SECTION MITL9105/911 O-096-500-NA
cabinet, but are packaged into a shelf that forms a pedestal for the [
SX-100 system.
SX-100 Equipment Cabinet
2.09 The door on the front of the SX-100 cabinet provides access to
the system maintenance panel and the printed circuit cards
(Figure 2-2). The removable rear panel provides access to the system
power supply, and the line and trunk connections. Cable entry to the
equipment cabinet is provided through a cable duct in the rear of the
cabinet. The maintenance panel, mounted at the top of the cabinet,
provides access to the system from the maintenance console through
a 50-pin connector. To the left of the maintenance plug is the master
power fail transfer switch, five power fail transfer control switches and
the system POWER ON/OFF switch. In addition, a test line is provided
which allows service personnel to access individual lines and trunks.
Mounted directly below the maintenance panel is the equipment shelf.
This shelf contains the system common control cards, plus a number
of trunk, line and receiver cards. The optional reserve power supply is
contained in a separate unit that the equipment cabinet may sit on.
SX-200 Equipment Cabinet
2.10 The door on the front of the cabinet provides access to the
system maintenance panel, printed circuit cards and reserve
battery supply shelf (Figure Z-3). The hinged rear panels hold the
system power supply, and provide access to the line and trunk con-
nections, and the reserve power controls. Cable entry to the equipment
cabinet is provided through cable ducts on either side of the cabinet.
2.11 The equipment cabinet holds the maintenance panel, a maxi-
mum of two equipment shelves, the optional reserve battery
supply and the primary power supply. The maintenance panel, mounted
at the top of the cabinet, provides access to the system from the
maintenance console through a 50-pin connector. To the left of the
maintenance plug is the master power fail transfer switch, five power
fail transfer control switches and the system POWER ON/OFF switch. In
addition, a test line is provided which allows service personnel to
access individual lines and trunks. Mounted directly below the main-
tenance panel is equipment shelf 2. This shelf holds line and/or trunk
cards. Below equipment shelf 2 is equipment shelf 1. This shelf con-
tains the system common control plus a number of trunk, line, and
receiver cards. The optional reserve power supply is contained in a
completely enclosed shelf located at the bottom of the cabinet. All
connections between shelves and external equipment are made by
connectorized cables from the rear of each shelf. The system primary
power supply, held on the lower hinged back panel of the cabinet,
converts the commercial input power to the required system voltage
levels.