Peripheral Control Card; Brief Description - Mitel SX-200 Practices

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PERIPHERAL CONTROL CARD
Brief Description
5.1- The Peripheral Control Card is located in slot 20 of an analog peripheral shelf.
Through the Scanner Card it controls the analog cards on instructions from the Main
Control Card. Figure 5-l shows the front faces of the Peripheral Control Card, the
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Scanner and Digital Interface Cards and the Main Control Card. The Peripheral
Control Card is only used in the 456port configuration of the SX-ZUO DIGITAL
Major Components
5.2 Major components provided by the Peripheral Control Card include:
9 6869 microprocessor running at I .33 MHz
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Memory: 8K EPROM, 32K RAM
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Peripheral Clock Oscillator.
Facilities
5.3 Facilities for the Peripheral Control Card include:
0 Peripheral l/O Timing Generator for the bays it controls
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Peripheral Address Decoder
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FIRQ Interrupt Timer/Generator
a Power Fail Monitor: a local bay reset is generated if any power rail drops below 95%
of its nominal level.
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Status Flag Buffer.
9109-096-1254A
Issue
1
Revision
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