Évaluations - 2, GPA: 5
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Green V.35/V.36 “Receive Line Signal Detector” or X.21 “Indication” control line from the NTU (DCE) is on Off Local Loop is not active Yellow Active Local Loopback on the selected port Red Active Local Loop on one or more ports or services (when no port is selected) Off Remote Loop is not active Yellow Active Remote Loopback on the selected port (when determined via established EOC) Red Active Remote Loop on one or more ports or services (when no port is selected) used either as a remote unit to the ADTRAN Total Access® 3000 multiservice platform, or as a pair of units in a point-to-point limited distance campus configuration, with one 6540 configured to “LT” mode. COMPLIANCE G.703 EN 300 386-2; IEC 60950/EN 60950/AS NZS60950; S016; S043.2; ITU K.21 Enhanced; Telstra 1555 FEATURES Nx64K The 6540 has the following features: ¦ Housed in a standalone plastic case ¦ Provides four front panel recessed pushbuttons, and eight front panel LED indicators RTS/C ¦ Provides SHDSL, G.703, and/or Nx64K ports, and a local management port ¦ Provides a rear panel connection for local AC power RLSD/I ¦ Provides bad splice protection using the ADTRAN proprietary Runtime TScan™ 2.0 splice protection feature (for more information on this feature and how to locally manage TScan, refer to the SHDSL 2-Wire/4-Wire NTU Product Series Installation and Maintenance Practice, P/N 61230001L1-5) LLOOP PUSHBUTTON FUNCTIONALITY RLOOP Pushbutton Description PORT SELECT Press the PORT SELECT button to select the active port. Selection choices cycle through the following order: No Port, Nx64k, G.703, SHDSL. LOCAL LOOP/ ERR INJ If a port is selected, and a Bit Error Rate Test (BERT) is not in progress, press the LOCAL LOOP/ERR INJ button to initiate or terminate a local loop on the selected port. If a BERT is in progress, press the button to inject a single bit error. BERT• • • • Off Green Yellow Red BERT is not active Active BERT and the test pattern detector is synchronized with no received bit errors Active BERT and one or more test pattern bit errors have been received Active BERT but the test pattern detector is not synchronized REMOTE LOOP If the SHDSL port is selected, press the REMOTE LOOP button to place or remove a remote loop on the port by sending a EOC request message to the LTU (or NTU in campus mode). If the Nx64K port or G.703 port (with only one service defined) is selected, press this button to place or remove a remote loop on the selected port's single data service by sending respective inband loop up or loop down patterns to the far end (in the associated data service timeslots). 1. Minor SHDSL port alarms: CRC errors, Loop Attenuation Threshold Alarm, SNR Margin Threshold Alarm, Segment Anomaly, and any ES, SES, UAS, CVC, and LOSWS 15-Minute Threshold Alarm 2. Major SHDSL port alarms: LOS, LOSW, or Segment Defect 3. Minor G.703 port alarms: Rx RAI, Frame Slip, CRC-4 errors, LBER, and any ES, SES, UAS, and CVC 15-MinuteThreshold Alarm BERT If a port is selected and there are no local loops, press the BERT button to start or stop a BERT on the selected port. 4. Major G.703 port alarms: LOS, LOF, LOMF, Rx AIS, or HBER 5. Nx64K port alarms: Clock Slip, Loss of External Clock, FIFO Underflow/Overflow, and Inactivity Alarm *61230001L1-22B* ©2006 ADTRAN, Inc. All For more information, refer to the Installation and Maintenance Practice (P/N 61230001L1-5) available online at Rights Reserved. PRICING AND AVAILABILITY 800.827.0807 TECH SUPPORT 800.726.8663 RETURN FOR REPAIR 256.963.8722 PRICING AND AVAILABILITY 800.827.0807 TECH SUPPORT 800.726.8663 RETURN FOR REPAIR 256.963.8722 61230001L1-22B MENU TREE 1. LTU 1. Unit Information 2. NTU Main Menu 1. Unit Options 2. Provisioning 1. 2-Wire 1. Interface Mode 2. SHDSL Options 2. 4-Wire 2. Payload Rate (kbps) * 0. Disabled 3. SNR Margin Alarm Threshold (dB) 1-15. Alarm Threshold 0. Disabled 4. Loop Attenuation Alarm Threshold (dB) 1-127. Alarm Threshold 1. Disabled 5. Outage Auto-Retrain 2. Enabled 1. ES 15-Minute Alarm Threshold 0. Disabled 6. PM Thresholds 2. SES 15-Minute Alarm Threshold 1-900. Seconds 3. UAS 15-Minute Alarm Threshold 0. Disabled 4. CVC 15-Minute Alarm Threshold 1-65535. Seconds 5. LOSWS 15-Minute Alarm Threshold 0. Disabled 6. OS 15-Minute Alarm Threshold 1-900. Seconds 1. ISDN-PRA V3 1. Disabled 3. G.703 Options 1-900. Seconds9. E-bit Generation 11. SES 15-Minute Alarm Threshold 12. UAS 15 Minute Alarm Threshold 2. Enabled2. G.704 CRC-4 Multiframing 2. Enabled 3. Timeslot Idle Pattern 00h to FFh 1. Disabled 4. Spare Bits Insertion to Span 2. Enabled 5. Spare Bits Pattern to Span 00h to FFh 1. Disabled 6. Spare Bits Insertion 2. Enabled 7. Spare Bits Pattern 00h to FFh 8. RAI Generation 1. Disabled 10. ES 15-Minute Alarm Threshold 0. Disabled 0. Disabled 13. CVC 15-Minute Alarm Threshold 1-65535. Seconds 4. Nx64K Options 13. CVC 15-Minute Alarm Threshold 1. Dual Sided 2. Transparent 3. Nontransparent 1. PN127 1. In-band Loopback Protocol...