Manuale d’uso / di manutenzione del prodotto 3060 del fabbricante ADTRAN
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1 Section 61182007L1-5, Issue 1 61182007L1-5A Section 61182007L1-5A Issue 1, June 2001 T otal Access ® 3010 L TU High-bit-rate Digital Subscriber Line T ransceiver Unit for the Central Office Installation and Maintenance CONTENTS 1. GENE RAL ........
2 Section 61182007L1-5, Issue 1 61182007L1-5A C A U T I O N ! SUBJECT TO ELECTROSTATIC DAMAGE OR DECREASE IN RELIABILITY. HANDLING PRECAUTIONS REQUIRED. The HDSL local loop operates as two independent subsystems each operating over a single twisted pair.
3 Section 61182007L1-5, Issue 1 61182007L1-5A 3. OPERATION Powering Options The unit features automatic sensing based on the current load detected on the HDSL circuit. Span powering at less than -120 Vdc allows for span powering of circuits without REGs or with one REG.
4 Section 61182007L1-5, Issue 1 61182007L1-5A Status Mode After selecting the LTU from the SCU, the display enters Status mode. It alternately displays loop margin for each HDSL loop, any active alarm condition, and general status conditions.
5 Section 61182007L1-5, Issue 1 61182007L1-5A REG Loopback The REG HDSL transceivers are looped back toward the LTU. This loopback enables a complete checkout of the LTU data path, the HDSL link between the LTU and the REG, and the REG data path. The REG loopback is activated via the V.
6 Section 61182007L1-5, Issue 1 61182007L1-5A Many portable personal computers use power-saving programs that are known to interfere with applications running on the personal computer.
7 Section 61182007L1-5, Issue 1 61182007L1-5A Figure 6. Logon Screen S helf: 77 Total Access System 04/07/01 15:44 Unacknowledged Alarms: MAJOR MINOR INFO Total Access System Account Name: ‘?’ - System Help Screen Figure 7. Total Access Screen Shelf: 77 Total Access System 04/07/01 15:45 Unacknowledged Alarms: MAJOR MINOR INFO Total Access 1.
8 Section 61182007L1-5, Issue 1 61182007L1-5A From the Total Access System Screen, select Access Modules by typing the number corresponding to the option followed by <Enter>. This will display the Access Module Menu Screen, illustrated in Figure 8 , which will display the Access Modules occupying the Total Access 3010 shelf.
9 Section 61182007L1-5, Issue 1 61182007L1-5A This will display the ADTRAN HDSL Main Menu as illustrated in Figure 9 . From the ADTRAN HDSL Main Menu, the following screens can be accessed. 1. Configuration 2. Provisioning 3. Status 4. Alarms 5. Test 6.
10 Section 61182007L1-5, Issue 1 61182007L1-5A The Provisioning Screen, as illustrated in Figure 11 , displays current provisioning settings and allows for changing the system configuration. Provisioning changes are only allowed at the CO end of the circuit.
11 Section 61182007L1-5, Issue 1 61182007L1-5A The Status Screen, illustrated in Figure 13, provides quick access to status information for both the LTU and NTU, in addition to any regenerators. Type “3” to view the status screen for REG #1, as illustrated in Figure 14 .
12 Section 61182007L1-5, Issue 1 61182007L1-5A Predicting performance based upon signal quality varies with each loop. Generally, a noise margin of 0 or higher will support a bit error rate (BER) of better than 10-7. The following guidelines correspond to the operation of the LTU faceplate LEDs labeled LP1 and LP2.
13 Section 61182007L1-5, Issue 1 61182007L1-5A At each 15-minute interval, the performance information is transferred to the 15-minute performance data register accessed from the Performance History screen.
14 Section 61182007L1-5, Issue 1 61182007L1-5A The Protection Configuration Screen - Main, illustrated in Figure 18 , displays the current settings for Protection Mode, BER Threshold and BER Interval. The BER Threshold allows the user to select a bit error rate that, when exceeded, will cause a switchover to an auxiliary circuit.
15 Section 61182007L1-5, Issue 1 61182007L1-5A Table 4. Protection Configuration Option Settings s n o i t p O n o i t c e t o r Ps g n i t t e Sn o i t p i r c s e D e d o M n o i t c e t o r Po t u A . n o i t n e v r e t n i r e s u o n h t i w X U A o t n i a M m o r f s e h c t i w s y l l a c i t a m o t u a m e t s y S .
16 Section 61182007L1-5, Issue 1 61182007L1-5A System Current Status are also displayed beneath the Current Settings summary. The Current System Status message displays the current operational state (Normal, Switched to AUX, Locked Out, Forced to Main, Forced to AUX, Locked to Main).
17 Section 61182007L1-5, Issue 1 61182007L1-5A Figure 21 illustrates the Alarm Options Screen. This option allows the user to first set a 15-minute threshold for both ES and SES alarms and subsequently to categorize the crossing of those thresholds as a MINOR or MAJOR alarm.
18 Section 61182007L1-5, Issue 1 61182007L1-5A Table 5. Total Access 3000 LTU Specifications Loop Interface Modulation Type ............................... 2B1Q Mode .................................................. Full Duplex, Echo Canceling Number of Pairs .
19 Section 61182007L1-5, Issue 1 61182007L1-5A 9. WARRANTY AND CUSTOMER SERVICE ADTRAN will replace or repair this product within five (5) years from the date of shipment if it does not meet its published specifications or fails while in service. (See ADTRAN International Equipment Warranty, document 60000003-3).
20 Section 61182007L1-5, Issue 1 61182007L1-5A.
61182007L1-5A Section 61182007L1-5, Issue 1 A-1 Appendix A HDSL H-LSS Circuit Configuration and T urnup for G.703 Fed Systems Introduction This section provides step-by-step instructions for the configuration and turnup of an HDSL Loop Support System (H-LSS) circuit on an HDSL loop fed from the network via individual G.
A-2 Section 61182007L1-5, Issue 1 61182007L1-5A If this is an initial installation, the units will require provisioning to appropriately configure them out of the factory default states. 2.1 Logon to Total Access system. 2.2 Check to ensure the LTU line cards are correctly provisioned according to circuit parameters.
61182007L1-5A Section 61182007L1-5, Issue 1 A-3 4.1.4 Upon provisioning of the NTUs, the faceplate LEDs should read as shown in Table 1. NOTE The condition of the ALM, G.703 and G.703 LEDs depends upon the status of the equipment on the ends of the installed circuit.
A-4 Section 61182007L1-5, Issue 1 61182007L1-5A.
61182007L1-5A Section 61182007L1-5, Issue 1 B-1 Appendix B HDSL H-LSS Circuit Configuration and T urnup for DS3-Fed Systems 1. UNPACK AND INSPECT THE THE TOTAL ACCESS DS3 MUX MODULES Each DS3 MUX Module is shipped in its own cardboard shipping carton.
B-2 Section 61182007L1-5, Issue 1 61182007L1-5A NOTE Only one DS3 MUX is required for any data circuit to be operational. Two modules are used for electronics redundancy of the DS3 circuit. 2.2 Provision the DS3 MUX NOTE There are no settings on the SCU that will affect APS operation of either the DS3 MUX units or the LTU line cards.
61182007L1-5A Section 61182007L1-5, Issue 1 B-3 3. INSTALL THE LTU The Total Access 3010 LTU delivers an E1 signal over an HDSL local loop. The local loop in the H-LSS configuration includes two independent 4-wire circuits. The two LTUs communicate to their respective remote units, the NTUs.
B-4 Section 61182007L1-5, Issue 1 61182007L1-5A 3.2.5 From the provisioning menu of the AUX circuit, reset the AUX unit to OOS-M . 3.2.6 Logoff the system. a. From the Total Access Menu, select Option 7, Logoff , and press <Enter>. b. From the Exit and Logoff screen, select “ Y ” and press <Enter>.
61182007L1-5A Section 61182007L1-5, Issue 1 B-5 NOTE Ensure that data has been removed from the AUX circuit before proceeding with the next step. Disabling protection switching before removing data from the AUX loop will cause a loss of signal condition on that loop.
B-6 Section 61182007L1-5, Issue 1 61182007L1-5A.
Un punto importante, dopo l’acquisto del dispositivo (o anche prima di acquisto) è quello di leggere il manuale. Dobbiamo farlo per diversi motivi semplici:
Se non hai ancora comprato il ADTRAN 3060 è un buon momento per familiarizzare con i dati di base del prodotto. Prime consultare le pagine iniziali del manuale d’uso, che si trova al di sopra. Dovresti trovare lì i dati tecnici più importanti del ADTRAN 3060 - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso ADTRAN 3060 imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul ADTRAN 3060 ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il ADTRAN 3060, ma non hai ancora letto il manuale d’uso, dovresti farlo per le ragioni sopra descritte. Saprai quindi se hai correttamente usato le funzioni disponibili, e se hai commesso errori che possono ridurre la durata di vita del ADTRAN 3060.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il ADTRAN 3060. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo ADTRAN 3060 insieme con le istruzioni su come risolverli. Anche se non si riesci a risolvere il problema, il manuale d’uso ti mostrerà il percorso di ulteriori procedimenti – il contatto con il centro servizio clienti o il servizio più vicino.
