3.01 Loopback Test (LBT) - for T-1/E-1
Description
Used to verify the validity of the T-1/E-1 DIGITAL TRUNK cards and line connections.
Before performing Loopback Test, set the card status to “OUS”.
Command Format
(1) OPE>LBT + Item1 + Item2
(2) OPE>LBT + Item1 + Item2 + Item3
15-E-5-1
(70695)
Command
Format
(1)
(2)
Item1
1 or 2
1: Internal
Loopback*
1
2: External
Loopback*
2
Item2
101,105,109,201,205,
209,301,305,309
(Card No.)*
3
G xxxyy
(DTMF Generator No.)
xxx : Card No.
yy
: 01 to 06 (T-1)
01 to 02 (E-1)
Item3
None
R xxxyy
(DTMF Receiver No.)
xxx: Card No.
yy : 01 to 24 (T-1)
01 to 08 (E-1)
*
1
.Loopback test is done automatically inside the T-1/E-1 DIGITAL TRUNK card.
*
2
.Loopback test is done between the T-1/E-1 DIGITAL TRUNK card and the external equipment (CSU,
DSU). In this case, loopback mode should be set at the external terminal beforehand.
*
3
.When a card No. is specified, DTMF Generator No.1 and DTMF Receiver No.1 of that card are used for
the test.
Results Display
Error Indication
OK
Voice error
Signal error
Description
Normal
Speech path failure
Control signal path failure
Summary of Contents for KX-T336
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Page 11: ...Section 1 System Outline ...
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Page 49: ...Section 2 Installation ...
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Page 171: ...Section 3 System Features and Operation ...
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Page 403: ...Section 4 Station Features and Operation Proprietary Integrated Telephone System PITS ...
Page 404: ......
Page 418: ...4 A 10 Programmable Feature buttons F1 F2 F3 TRANSFER PF01 PF02 PF03 ...
Page 424: ...Location Type 20 50 1 VOLUME Control 2 RINGER Volume Selector 3 MEMORY Switch 4 A 16 1 2 3 ...
Page 579: ...Section 5 Station Features and Operation Single Line Telephone SLT ...
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Page 677: ...Section 6 Station Features and Operation Attendant Console ATT ...
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Page 813: ...Section 7 Preparation for Programming and Maintenance VT220 and Compatibles ...
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Page 877: ...Section 8 Preparation for Programming and Maintenance Dumb Type Terminal ...
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Page 907: ...Section 9 System Programming VT220 and Compatibles ...
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Page 1127: ...Section 10 System Programming Dumb Type Terminal ...
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Page 1293: ...Section 11 System Programming Proprietary Integrated Telephone System PITS ...
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Page 1321: ...Section 12 Station Programming Proprietary Integrated Telephone System PITS ...
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Page 1360: ...9 00 Charge Management 9 01 Charge Management Outline 12 C 33 70695 ...
Page 1369: ...12 C 42 70695 Examples of SMDR Printout 1 All CO Lines and Account Codes Meter Charge ...
Page 1370: ...12 C 43 70695 2 All Extensions Meter Charge ...
Page 1371: ...12 C 44 70695 3 Each Extension Meter Charge 4 Attendant Consoles Meter Charge ...
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Page 1375: ...Section 13 Station Programming Attendant Console ...
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Page 1427: ...Section 14 Maintenance VT220 and Compatibles ...
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Page 1527: ...Section 15 Maintenance Dumb Type Terminal ...
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Page 1567: ...Section 16 Backup Utility On Site ...
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Page 1581: ...Section 17 Backup Utility Remote Location ...
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Page 1591: ...Section 18 Abbreviations ...
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Page 1595: ...Section 19 I n d e x ...
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