Assessments - 3, GPA: 4 ( )

Fabricante : Adder Technology Arquivo Tamanho: 254.78 kb Arquivo Nome : Língua de Ensino:

Pull the ejector latch, located on the bottom of the HTU-C front panel, from the closed used. Refer the appropriate SCU Installation and Maintenance Practice when setting options. positions. ©2007 ADTRAN, Inc. All Rights Reserved. For more information, refer to the Installation and Maintenance Practice (P/N 61181107L1-5) available online at HANDLING PRECAUTIONS REQUIRED. PRICING AND AVAILABILITY 800.827.0807 TECH SUPPORT 800.726.8663 RETURN FOR REPAIR 256.963.8722 61181107L1-22A Total Access 3000/3010HTU-C PRICING AND AVAILABILITY 800.827.0807 TECH SUPPORT 800.726.8663 RETURN FOR REPAIR 256.963.8722 61181107L1-22A Total Access 3000/3010HTU-C Settings Default DSX-1 Line Buildout (in feet) 0-133; 133-266; 266-399; 399- 533; 533-655 0-133 TROUBLESHOOTING Use the Status Screen to view the current condition of the HTU-C and signal. Line Code AMI; B8ZS Framing Unframed; SF; ESF; Auto; Forced Conversion NIU Loopback Enabled; Disabled New England 1:6 Loopback Enabled; Disabled Loopback Timeout None; 60 Min; 120 Min Customer Loss Response Loopback; AIS; CDI PRM Mode None; NPRM; SPRM DS1 Tx Level 0; –15 dB Span Power Enabled; Disabled Network Source DSX; MUX A; MUX B; Auto MUX Card Service State In Service; Out of Service-Unassigned; Out of Service-Maintenance DSX1/DS1 External Alarm Enabled; Disabled B8ZS Auto Enabled Disabled None AIS None 0 dB Enabled DSX Out of Service-Unassigned Disabled Note: The above provisioning options are based on 7th Generation HTU-R, 1247024L1 or 1247026L1. Option settings for previous HTU-Rs, 1246026L4 and/or 1246026L6, that are either not supportedby the HTU-R, or are hardware options and cannot be provisioned from the HTU-C menu, willdisplay a asterisk (*), and options that follow will be renumbered sequentially. FRONT PANEL BANTAM JACK TEST ACCESS The BERT tester should be in Monitor mode for nonintrusive tests and Terminate mode for intrusive tests. Use the Provisioning screen to configure the HTU-C for DSX or MUX-fed network source. Use the Test screen to configure EQ jacks for Customer or Network direction. (The Network direction is only available when the HTU-C is MUX- fed.) The BERT TX is only used in intrusive tests. Refer to the Total Access 3000/3010 HTU-C Installation and Maintenance Practice (P/N 61181107L1-5) for more detailed information. ¦ Nonintrusive DSX to Customer ¦ Connect HTU-C TX MON to BERT RX ¦ Allows access to DSX signal going to Customer ¦ Nonintrusive DSX from Customer ¦ Connect HTU-C RX MON to BERT RX ¦ Allows access to DSX signal coming from the Customer ¦ Intrusive DSX to Customer ¦ Connect HTU-C TX EX to BERT TX and HTU-C RX EQ to BERT RX ¦ Allows access to signal going to Customer ¦ Nonintrusive MUX to Customer ¦ Connect HTU-C TX MON to BERT RX ¦ Allows access to signal going to Customer ¦ Intrusive MUX to Network ¦ From the Test screen (Option 5 from the HDSL Main Menu), verify Equipment Jack = Network ¦ Connect HTU-C TX to BERT TX and HTU-C RX EQ to BERYT RX ¦ Allows direct access to signal going to and from the Network ¦ Intrusive MUX to Customer ¦ Verify Equipment Jack = To Customer ¦ HTU-C TX EQ to BERT TX and HTU-C RX EQ to BERT RX ¦ Allows direct access to signal going to and from the Customer Shelf: 1 Slot: 3 Total Access System Unacknowledged Alarms: None Circuit ID: Loop #1 Loop #2--------- HTU-C --------- 01(01) dB 00(00) dBYes Yes 000/00000 000/00000 000/00000 000/00000 000/00000 000/00000 Network Source -> DSX <- LOSS CUR(MAX) -> <-Sync -> <- ES 15M/24H -> <- SES 15M/24H -> <- UAS 15M/24H -> MM/DD/YY hh:mm:ss Unit Number: Loop #1 Loop #2 --------- HTU-R --------00( 01) dB 01(01) dB Yes Yes 000/00000 000/00000 000/00000 000/00000 000/00000 000/00000 Loopbacks Inactive HTU-C MARGIN (dB) CUR/MIN/MAX LP1 20/20/20 LP2 20/20/20 Enter Command : _ DSX-1 DS1 ------------------------------ ESF <- Frame -> ESF B8ZS <- Code -> B8ZS 0-133 <-LBO -> 0 dB N/A <-NIU -> YES 00000 <-BPV -> 00000 00000 <-ES -> 00000 00000 <-SES -> 00000 00000 <-UAS -> 00000 None <- Alarms -> None Loopbacks Inactive HTU-R MARGIN (dB) CUR/MIN/MAX LP1 20/20/20 LP2 20/20/20 "Z"- zero regs, "X"- restart MIN/MAX, "?" - Help Screen The following are indications that a problem can exist with HTU-C or signal quality: ¦ Is LOSS (pulse attenuation) >30 dB? ¦ Are there any errors counting on the ES, SES or UAS registers? ¦ Is the signal quality fluctuating (graphical meter indicators bouncing up and down)? This would occur when real time mode is active. ¦ If the signal quality is not fluctuating, is it unequal between the loops? ¦ Is the current signal quality indication (uppermost “X” on the meter) more than 1 dB below the maximum? If these conditions are not present, the circuit should provide quality service. If any of these conditions exist, a cable problem or excessive signal loss is probable, and more testing should be done. These conditions can also reflect intermittent cable faults or excessive noise impairments. If ...

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