54 | Testing |
T1 Interface - T1 Loopback (Slide switch - front)
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| Self Check | T1 Test |
| T1 Status |
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| T1 Loop |
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| Test Pattern |
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| Test Pattern |
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| Off / QRSS |
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| 1 / Off / 2 |
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| T1 Loop |
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| Data Loop 1 | Data Loop 2 | ||||||||||||||||||||||
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| Net. / Off / Lcl. Lcl. / Off / Net. Lcl. / Off / Net. | ||||||||||||||||||||||||||||
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| T1 Loop |
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| T1 Loop | ||||||||||||||||
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| Net. Off Lcl. |
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| Net. Off |
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NETWORKLOCAL
FXS Status Channel
1 3 5 7 9 11 13 15 17 19 21 23
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2 |
| 4 |
| 6 |
| 8 | 10 12 | 14 16 18 20 22 24 |
T1 Loop
Net. Off Lcl.
OFF
Description: This is a three position slide switch used to operate the T1 Interface Loopback.
Factory Setting: OFF
Network: Loops signal back to the network and breaks the transmit and receive paths between the Framer and LIU and Loops the T1 receive onto the T1 transmit within the Framer chip.
Local: Loops signal back to the network and breaks the transmit and receive paths between the LIU and the line and loops the T1 transmit signal onto the T1 receive within the LIU.
Note: When operating the QRSS switch the
T1 Loopback switch will be inoperative.
Issue 1, September 1998 | |
| © 1998, ADC Telecommunications, Inc. |