IV-48
(5) SIMM block
SIMM (Single-Inline-Memory-Module) allows memory extension by up to
96MB.
3 SIMM sockets are available.
The following type of SIMM can be installed into each slot.
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Appearance: 72-pin
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Memory type: Fast page or EDO (automatic selection)
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Access time: less than 80nsec.
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Parity: either Parity or Non-parity can be used
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Memory capacity: 1MB, 2MB, 4MB, 8MB, 16MB, 32MB
<Recommended SIMM type>
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1MB: HITACHI HB56D25632B-6A, -7A, -8A
MITSUBISHI MH25632BJ-7, -8
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2MB: HITACHI HB56D51232B-6A, -7A, -8A
MITSUBISHI MH51232BJ-7, 8
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4MB: HITACHI HB56A132BV-7A, -7AL, -7B, -7BL, -8AL, -8B, -8BL
MITSUBISHI MH1M32ADJ-7, -8
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8MB: HITACHI HB56A232BT-7A, -7AL, -7B, -7BL
MITSUBISHI MH1M32ADJ-7, -8
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16MB: TOSHIBA THM324000BSG-60, -70, -80
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32MB: TOSHIBA THM328020BSG-60, -70, -80
Any combination of SIMM size can be installed into any slot in any order.
Note:
Fast page type and EDO type can be used together although it is not recommended.
(6) External interface block
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Centronics Interface
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RS-232C Interface
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PCMCIA Interface
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MIO Interface
(7) Engine interface block
The engine interface consists of the following signals;
<IREADY>
The signal indicating the engine is ready
<PRREQ>
Signal requesting printing from the controller
<KEY_STATUS>
Signal indicating that a key switch status on the control panel has changed.
<VSYNC>
Vertical synchronization signal for printing