Shared Service Ports
9-39
DTMF Receiver (DTR)
9
9.7
DTMF Receiver (DTR)
The MSBipx includes the DTR circuits. The DTR provides eight circuits, which receive
and decode Dual Tone Multi-Frequency (DTMF) dialing tones. The DTR is required to
support telephone station apparatus or trunks that send DTMF tones to the Coral IPx
500 system to activate system features or select other ports.
DTMF signaling is commonly used by industry standard, single line telephone (SLT)
sets, as well as E&M tie trunks and Direct Inward Dialing (DID) central office trunks.
Loop-start and ground-start central office trunks, which are defined in the system
database as IRSS (Freedom) or DISA, require a DTR to be installed in the system.
The DTR uses industry standard DTMF receiver circuitry to decode DTMF dialing
tones. The audio side of each DTMF receiver circuit is directly coupled through a
CODEC to the Pulse Code Modulation (PCM) switching matrix of the Coral IPx 500
system. Decoded digital data is passed through the peripheral bus to the system
processor.
When the DTR exists and initialized, the PI displays the following:
8DRCF in (Route: CLIS)
Shelf #0, Slot #13,
in the
P_TYPE
field.
DTR in (Route: PLIS)
Shelf #0, Slot #13, Ckt #0-7
in the
TYPE
field.
Refer to the
Program Interface (PI) and Database Reference Manual - Chapter 6
for further
details
1
General Description
Содержание Coral IPx 500
Страница 1: ...Coral IPx 500 Installation Procedure and Hardware Reference Manual The flexible way to communicate...
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Страница 58: ...2 16 Coral IPx 500 Installation Manual Site Inspection 2 NOTES...
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Страница 126: ...3 6 Coral IPx 500 Installation Manual Power Supply Test 3 NOTES...
Страница 146: ...3 26 Coral IPx 500 Installation Manual I O Cable Installation 3 Figure 3 6 Champ Fastening to Top Section of the Cage...
Страница 149: ...Initial Power up Tests 3 29 I O Cable Installation 3 Figure 3 8 MDF Connector Configuration Left View...
Страница 152: ...3 32 Coral IPx 500 Installation Manual Installation Wrap up 3 NOTES...
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Страница 184: ...5 14 Coral IPx 500 Installation Manual Protection Devices 5 NOTES...
Страница 188: ...5 18 Coral IPx 500 Installation Manual Power Fail PF Transfer Circuits 5 NOTES...
Страница 204: ...5 34 Coral IPx 500 Installation Manual MDFipx Units Supplied by the Manufacturer 5 NOTES...
Страница 254: ...5 84 Coral IPx 500 Installation Manual Peripheral Card with RJ 45 DA 15S Connections For Coral Interface Cards 5 NOTES...
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Страница 288: ...6 32 Coral IPx 500 Installation Manual Coral IPx 500M Main Cage Description 6 NOTES...
Страница 296: ...6 40 Coral IPx 500 Installation Manual Coral IPx 500X Expansion Cage Description 6 NOTES...
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Страница 332: ...7 16 Coral IPx 500 Installation Manual PS500 DC Power Supply Unit 7 NOTES...
Страница 350: ...7 34 Coral IPx 500 Installation Manual PS500 AC Power Supply Unit 7 NOTES...
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Страница 380: ...8 4 Coral IPx 500 Installation Manual Control Cards 8 NOTES...
Страница 404: ...8 28 Coral IPx 500 Installation Manual IMC8 Card Flash Erasable Software Memory Unit 8 NOTES...
Страница 412: ...8 36 Coral IPx 500 Installation Manual DBX Card Database Expansion Memory Unit 8 NOTES...
Страница 422: ...8 46 Coral IPx 500 Installation Manual CLA Card CoraLINK Adapter 8 Figure 8 15 CLA with RJ 45 Connection...
Страница 426: ...8 50 Coral IPx 500 Installation Manual CLA Card CoraLINK Adapter 8 NOTES...
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Страница 432: ...9 4 Coral IPx 500 Installation Manual Shared Service Circuitry Installation 9 NOTES...
Страница 452: ...9 24 Coral IPx 500 Installation Manual IPx 500M Backplane Main Service Board inside the IPx 500M Cage 9 NOTES...
Страница 460: ...9 32 Coral IPx 500 Installation Manual Three Way Conference Conference Circuitry 9 NOTES...
Страница 490: ...9 62 Coral IPx 500 Installation Manual KB1 KB2 KB3 RS 232E Data Serial Port 9 NOTES...
Страница 498: ...9 70 Coral IPx 500 Installation Manual Music Background and Music On Hold M1 M2 9 NOTES...
Страница 518: ...9 90 Coral IPx 500 Installation Manual Relay Contacts RLY1 RLY2 RLY3 9 NOTES...
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Страница 526: ...10 6 Coral IPx 500 Installation Manual Peripheral Card Installation 10 NOTES...
Страница 534: ...10 14 Coral IPx 500 Installation Manual Peripheral Card Description XXXipx and XXXsl Cards 10 NOTES...
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