Manuale d’uso / di manutenzione del prodotto 2500 Series del fabbricante Patton electronic
Vai alla pagina of 20
USER MANUAL MODEL 2500 Series Models 2500, 2510, 2520 All-Rate CSU/DSU SALES OFFICE (301) 975-1000 TECHNICAL SUPPORT (301) 975-1007 P ar t# 07M2500-C Doc# 099021UC Revised 3/13/96.
T ABLE OF CONTENTS Section P age 1.0 General Inf ormation ...............................................................2 1.1 W arr anty Statement 1.2 Radio and TV Interf erence 1.3 FCC Inf or mation 1.4 Ser vice Inf or mation 2.0 Product Ov er vie w .
2.0 PRODUCT OVERVIEW This section provides an o v er view of the Model 2500 Series, including f eatures , general description, and a breakdown of model numbers b y application.
3.0 INST ALLA TION This section descr ibes connection of the Model 2500 Ser ies to the DTE and telco (line) interf aces , as well as AC pow er connection 3.1 DTE INTERF A CE CONNECTION The Model 2500 Ser ies has connectors f or both V .35 and RS-232 interf aces .
4.0 CONFIGURA TION Bef ore y ou can operate your Model 2500 Series CSU/DSU , you must configure the unit. Configur ation ma y be done using the e xter nally accessib le hardware s witches or b y using the software s witches .
4.1.1 SWITCH SET SW1 The configuration s witches on s witch set SW1 allo w you to specify Line Rate , Circuit Assurance , R TS, Char acter Length, Data Format and DSR Loop Status. Figure 3 (belo w) summar iz es SW1 s witch settings , including the f actor y def aults.
Character Length In asynchronous data f or mat, 10 and 11 bit characters are suppor ted. This setting is ignored in synchronous data format. Character Char acter Descr iption SW1-6 Length Start Data b.
DTE Loop Contr ol The local loop and remote loop can be activ ated from the DTE interf ace using signals “LL ” and “RL ”. SW2-4 On Enab le LL and RL inputs Off Disab le Cloc k Mode The appropriate transmitter cloc king modes can be selected f or Dedicated DDS , Switched-56 or campus-area (pr iv ate) operation.
4.2.1 USING THE SOFTW ARE MENU SYSTEM The Model 2500 Ser ies Men u System operates as f ollo ws: 1) All selections must be follo wed by [RETURN]. 2) T o mak e a selection from an y menu, enter the option number at the prompt and press [RETURN]. 3) T o e xit an y menu without making a selection, press [ESC] f ollo wed by [RETURN].
Character Length Choosing option 4 in the Softw are Switch Men u takes you to the Character Length Men u (below). In asynchronous data f or mat, the Model 2500 Ser ies suppor ts 10-bit and 11-bit character lengths . Set this option according to the characteristics of the data being transmitted.
Note 2 : Y ou can use the Model 2500 Ser ies to transmit low er-speed asynchronous data (up to 9.6 kbps) ov er synchronous circuits b y simple o ver-sampling. T o do this, select the synchronous data f or mat and set the line Line Rate (Softw are Switch Men u option 1) to at least f our times that asynchronous data rate y ou wish to send.
21 22 Cloc k Mode Choosing option 9 in the Software Switch Men u takes y ou to the Cloc k Mode Menu (belo w). Set this option as f ollo ws: • Internal (Master): T o use the Model 2500 Ser ies inter nal reference cloc k as the timing source, select item 1.
5.0 OPERA TION Once the Model 2500 Ser ies unit is installed and configured proper ly it is ready to oper ate. This section describes the function of the LED indicators, the status displa ys, the use of loopbac k test modes, and Switched 56 dialing procedures (Models 2510 and 2520 only).
25 26 In the Read Configuration Men u, you ma y select item 1 to read the hardw are s witch configuration or item 2 to read the software s witch configuration. A sample screens is sho wn below: 5.2.2 DISPLA YING LINE/LOOP ST A TUS T o chec k the current status of the Model 2500 Ser ies and the associated circuit, go to the Main Menu (see Section 4.
27 28 LAL T est Pr ocedure Once LAL is activ ated, the Model 2500 Ser ies tr ansmit output is connected to its own receiv er . The “T est” LED should be lit. F ollo w these steps to complete the test: 1) V erify that the data ter minal equipment is operating properly and can be used f or a test.
29 30 CSU Loop The CSU Loop is activ ated when the central office re v erses the DC sealing current that flows betw een the TX pair and the RX pair . In this case , the Model 2500 Ser ies recognizes this and loops signals on the RX pair bac k to the central office on the TX pair (see Figure 8, below).
31 32 5.5 SWITCHED 56 DIALING COMMANDS (MODELS 2510 & 2520) T o access the Switched 56 dialing capabilities of the Mode 2500 Ser ies , go to the Main Menu (see Section 4.2 ) and select item 5, “Set Switched 56 Dialing P ar ameters”. This will take y ou to the Switched 56 Menu (see belo w).
33 34 APPENDIX A SPECIFICA TIONS DDS T ype: Dedicated T ransmission Format: Asynchronous, synchronous Interface: RS-232 and V .35 Standar ds: A T&T 62310 compliant DDS Line Rates: 2.4, 4.8, 9.6, 19.2, 56 and 64 kbps DTE Rates: 2.4, 4.8, 9.6, 19.2, 38.
35 36 APPENDIX C F A CT OR Y REPLACEMENT P ARTS AND A CCESSORIES P atton Model # Description 10-2500 ...........................DDS Cab le, RJ48 - RJ48, 6 f oot 10-561S ...........................Control P or t Cable, EIA-561, 6ft, shielded 12M-561 ..
(APPENDIX D - Continued) DB-25 CONNECT OR, TERMINAL INTERF A CE Pin # Signal 1 F rame Ground 2 TD 3 RD 4 R TS 5 CTS 6 DSR 7 SGND (Signal Ground) 8 CD 15 TC 17 RC 18 LL (Local Loop) 20 DTR 21 RL (Remote Loop) 24 XTC 25 TM (T est Mode) CONTR OL PORT INTERF A CE 8 P osition modular connector compliant with EIA-561.
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 Patton electronic 2500 Series 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 Patton electronic 2500 Series - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso Patton electronic 2500 Series imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul Patton electronic 2500 Series ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il Patton electronic 2500 Series, 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 Patton electronic 2500 Series.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il Patton electronic 2500 Series. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo Patton electronic 2500 Series 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.
