Page 394 of 544
NT8D15 E&M Trunk Card
553-3011-100
Standard 14.00
January 2002
Card-LAN
The Card Lan interface supports maintenance functions. The following list of
features are provided by the Card Lan:
•
Polling form the Peripheral Controller
•
Enable disable of the DS30X link
•
Card status reporting
•
Self-test status reporting
•
Card ID
•
Report configuration data
•
Report of the firmware version
The Card Lan communicates through a serial communication link between
the trunk card and the Peripheral Controller. The microprocessor provides the
Card Lan function for the E & M Trunk.
Electrical characteristics
The electrical characteristics of all trunk circuits are provided in Table 119.
Table 119
Electrical characteristics (Part 1 of 2)
Characteristic
DID Trunk
CO trunk
Nominal impedance
600 or 900 ohms, (selected
by software)
600 or 900 ohms, (selected
by software)
Signaling range
2450 ohms
1700 ohms
Signaling type
Loop
Ground or loop start
Far-end battery
-42 to -52.5 V
-42 to -52.5 V
Near-end battery
N/A
-42.75 to -52.5 V
Minimum loop current
N/A
20 mA
Ground potential difference
+ 10 V
+ 3 V
Содержание Meridian 1 Option 11C Mini
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Страница 8: ...Page 8 of 544 Contents 553 3011 100 Standard 14 00 January 2002 ...
Страница 10: ...Page 10 of 544 About this guide 553 3011 100 Standard 14 00 January 2002 ...
Страница 86: ...Page 86 of 544 Memory Storage and CPU capacity 553 3011 100 Standard 14 00 January 2002 ...
Страница 176: ...Page 176 of 544 Transmission parameters 553 3011 100 Standard 14 00 January 2002 ...
Страница 196: ...Page 196 of 544 Spares planning 553 3011 100 Standard 14 00 January 2002 ...
Страница 226: ...Page 226 of 544 System Controller cards 553 3011 100 Standard 14 00 January 2002 ...
Страница 260: ...Page 260 of 544 The TDS DTR card 553 3011 100 Standard 14 00 January 2002 ...
Страница 282: ...Page 282 of 544 M2317 Telephone 553 3011 100 Standard 14 00 January 2002 ...
Страница 308: ...Page 308 of 544 Meridian Modular Telephones 553 3011 100 Standard 14 00 January 2002 ...
Страница 312: ...Page 312 of 544 M3900 telephone series 553 3011 100 Standard 14 00 January 2002 Figure 40 M3901 Figure 41 M3902 ...
Страница 364: ...Page 364 of 544 M2250 Attendant Console 553 3011 100 Standard 14 00 January 2002 ...
Страница 368: ...Page 368 of 544 NT8D02 and NTDK16 Digital Line Cards 553 3011 100 Standard 14 00 January 2002 Figure 55 NTDK16 DLC ...
Страница 388: ...Page 388 of 544 NT8D14 Universal Trunk Card 553 3011 100 Standard 14 00 January 2002 ...
Страница 408: ...Page 408 of 544 NT5K21 XMFC MFE card 553 3011 100 Standard 14 00 January 2002 ...
Страница 414: ...Page 414 of 544 NTAG26 XMFR card 553 3011 100 Standard 14 00 January 2002 ...
Страница 422: ...Page 422 of 544 NT6D71 UILC line card 553 3011 100 Standard 14 00 January 2002 ...
Страница 438: ...Page 438 of 544 NT1R20 Off Premise Station OPS analog line card 553 3011 100 Standard 14 00 January 2002 ...
Страница 492: ...Page 492 of 544 NTAK79 2 0 Mb PRI card 553 3011 100 Standard 14 00 January 2002 ...
Страница 512: ...Page 512 of 544 NTAK20 clock controller 553 3011 100 Standard 14 00 January 2002 ...
Страница 518: ...Page 518 of 544 NTAK93 D channel handler interface 553 3011 100 Standard 14 00 January 2002 ...
Страница 544: ...Page 544 of 544 Index 553 3011 100 Standard 14 00 January 2002 ...
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