Mitel SX-200 Documentation page 21

Remote Control - System Card. This card allows the system
to be accessed from a remote maintenance center. The card is
not normally supplied with the PABX and forms part of the
RMAT System (consult Section MITL9105/91
Remote Maintenance, Administration and Test System).
Tone Control Card. All call progress tones are supplied by this
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card. In addition, this card contains the DTMF and DP pulse
generators, voice paging circuitry and diagnostic testing func-
tions.
Scanner Card. This card sequentially scans all ports to detect
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signals that require processor action. It also contains the night
bell, paging control relays, 2-digit display and the master reset
button. This card also set the baud rate for the RS-232 printer
port as 300 or 1200 baud, the parity, the stop bits and the word
length.
IPC. The IPC (Integrated Processor Control) contains all operat-
ing software in the form of PROM and RAM and the micro-
processor (68009). There are 160 kbytes of PROM and 48 kbytes
of RAM. Of the 48 kbytes of RAM 34 kbytes are write-protected
and the remaining 14 kbytes are not write-protected. All cus-
tomer memory is protected from power failure by card mount-
ed batteries. The actual Generic information is contained in the
PROM and is non-volatile.
Recorded Announcement Card (RAC). This card occupies one
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peripheral slot in the system and provides two different 8 sec-
ond recordings using digital solid-state storage. Messages are
recorded from the Attendant's position and two messages, may
be added for a total of 16 seconds. All data is protected by card
mounted batteries.
Attendant Console
4.03 The layout of the SX-lOO/SX-200 Attendant Console is shown
in Figure 2-7. Three rows of buttons on the console faceplate
are used to select and handle calls. Each button has a light-emitting
diode (LED) associated with it to indicate the operational status of the
button.
4.04 The console display area provides the attendant with specific
information concerning the call which is being handled, as well
as general information such as the time-of-day, and the busy/idle
status of PABX stations and trunk groups.
4.05 A brief description of the display, and the functions of each
pushbutton is in the following paragraphs.
SECTION MITL91 OS/91 10-096-l 00-NA
Page 15