Common Control Cards
8-19
HDC C
a
rd
Hig
h
Den
sity Con
tr
o
l
8
8.9
HDC Card
High Density Control
3
The HDC (High Density Control circuit) card for Coral IPx 800 systems serves as a
communication link between the MEX-IP2 and peripheral cards. It contains:
Digital tone generators (dial, busy, ringing, ringback, DTMF, MFC, and test)
High-Level Data Link Control (HDLC) bus drive circuitry
Pulse Code Modulation (PCM) bus drive circuitry
Clock circuitry to synchronize the Coral peripheral clock to an external clock
derived from a digital trunk interface such as the 2DT, UDT, T1, 30T, 30T/x, PRI-23,
PRI-30, 4TBR, or 8TBR card.
512 x 512 Time Slot Switch circuitry, as in the 4GC card.
on page
illustrates the HDC card layout.
Figure 8-1
Coral
IPx 800, HDC and
Peripheral Cards
1
General Information
Do not insert or remove the HDC card when power is on. Removing the HDC card from
the system while the power is on will cause the system to crash. Inserting the HDC card
while the power is on will prevent the peripheral cards from initializing properly.
MEX-IP2
HDC
PX
Common Control Cards
Peripheral Cards
IPx 800X
1st xpansion
cage
e
IPx 800X
xpansion cage
2nd e
IPx 800M
main cage
Содержание Coral IPx 800 Series
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Страница 32: ...1 4 Coral IPx 800 Installation Manual Document Description 1 NOTES...
Страница 34: ...1 6 Coral IPx 800 Installation Manual Special Symbols Used in this Document 1 NOTES...
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Страница 48: ...2 8 Coral IPx 800 Installation Manual Site Inspection 2 NOTES...
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Страница 116: ...3 26 Coral IPx 800 Installation Manual Shared Service and Peripheral Card Test 3 NOTES...
Страница 118: ...3 28 Coral IPx 800 Installation Manual Installation Wrap up 3 NOTES...
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Страница 142: ...5 16 Coral IPx 800 Installation Manual Protection Devices 5 NOTES...
Страница 150: ...5 24 Coral IPx 800 Installation Manual Terminal Data Communication Ports RS 232E 5 NOTES...
Страница 182: ...5 56 Coral IPx 800 Installation Manual I O RJ 45 Connections Via Rear Panel For Coral Interface Cards 5 NOTES...
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Страница 278: ...6 38 Coral IPx 800 Installation Manual Cage Description and Installation 6 NOTES...
Страница 292: ...6 52 Coral IPx 800 Installation Manual Coral IPx 800X Expansion Cage Description 6 NOTES...
Страница 312: ...6 72 Coral IPx 800 Installation Manual System Configuration Options Coral IPx 800 6 NOTES...
Страница 313: ...Coral Cor IPx 800 Installation Manual Chapter 7 Power Supplies 7 1 PS19 DC 7 1 7 2 PS19 DC D 7 17 7 3 PS19 AC 7 39...
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Страница 352: ...7 38 Coral IPx 800 Installation Manual PS19 DC D Power Supply Unit with Duplication 7 NOTES...
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Страница 372: ...8 4 Coral IPx 800 Installation Manual Common Control Cards 8 NOTES...
Страница 382: ...8 14 Coral IPx 800 Installation Manual Software Authorization Unit SAU 8 NOTES...
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Страница 386: ...8 18 Coral IPx 800 Installation Manual LIU 8 NOTES...
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Страница 396: ...8 26 Coral IPx 800 Installation Manual HDC Card High Density Control 8 NOTES...
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