© SAMSUNG Electronics Co., Ltd.
7
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IRQ5(Level2): Not used
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IRQ6(Level1): ./INTD_DMC: DLI
/INT_QDASL: DLI
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IRQ7(Level0): Not Used
4.2.2.2 Engine (STC9604)
STC9604 provides QDMC for DLI, and supports functions such as Time Switch,
DTMF(Dual Tone Multi-Frequency) Sender/Receiver, and Conference.
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Device: SEC STC9604
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Memory Size: 1 MByte
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Quantity: 1
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Power: 5 V
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Package: 208P QFP
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Bus Width: 8 Bits
Time Switch
The engine(STC9604) contains a T-switch composed of eight highways, and each highway
consists of 32 channels. Thus, the engine can control a total of 256 channels(256x256).
The T-switch is the core of a digital PABX and is the most important part of the engine.
Each switch controls gain through 8 steps. Since OfficeServ 12 is a small system, only four
out of the eight highways are used.
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HW0: Highway used by the 8SLI channel of the base board and by MFR.
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HW1: Highway used by CID
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HW2: Highway used by the 4DLI channel of the base board
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HW3: Highway used by 3/4TRK or 2BRI
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HW4: Highway used by MGI(4-CH)
Содержание OfficeServ 12
Страница 1: ...GANA 000029 Ed 001 OfficeServ 12 Service Manual ...
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Страница 106: ... SAMSUNG Electronics Co Ltd 2 A 1 2 Solder Side ...
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