Panasonic KX-TD500, Справочное руководство системы

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16-E-6
3.01 Loopback Test (LBT) - for T-1/E-1
Description
Used to verify the validity to T-1/E-1 cards and line connections.
Command Format
(1) OPE>LBT + Item1 + Item2
(2) OPE>LBT + Item1 + Item2 + Item3
Item 1
1 or 2
1: Internal
Loopback* 1
2: External
Loopback* 2
Item 2
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)
Item 3
None
R xxxyy
(DTMF Receiver No.)
xxx : Card No.
yy : 01 to 24 (T-1)
01 to 08 (E-1)
Command
Format
(1)
(2)
* 1 Loopback test is done automatically inside the T-1/E-1 card.
*
2
Loopback test is done between the T-1/E-1 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.
Result Display
Error Indication
OK
Voice error
Signal error
Description
Normal
Speech path failure
Control signal path failure