9-46
Coral IPx 500 Installation Manual
Rem
o
te Mai
n
ten
ance Modem
9
0
The MSBipx card is equipped with jumper straps JU10 and JU11 (see
Figure 9-1
) that
enable and disable the modem. These jumpers, when removed, disable the on-board
modem, without affecting the other programming interfaces. Thus, a local
programming terminal or an external modem incorporating more sophisticated
security features may be operated while the MSBipx modem is disabled.
The modem requires no external connections to function. The data side of the modem
circuitry directly accesses the peripheral data bus to communicate with the system
processor. The audio side of the modem circuitry directly accesses the switching
matrix, is assigned a dial number in the system database and may answer incoming
calls in virtually the same manner as any other port in the system.
The Coral IPx 500 modem can be configured to transmit or receive data. This is useful
when maintenance from a remote workstation is necessary. During normal system
operation, it is advisable to set the modem transmit and receive function to “Off” for
more secure system operation.
Figure 9-7
displays the jumper settings for the modem.
2
Modem Jumpers - Enable/Disable
Setting the Transmit or Receive function of the modem to “On” during normal system
operation exposes the Coral IPx 500 system to penetration by unauthorized parties.
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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