Manuale d’uso / di manutenzione del prodotto MGX 8260 del fabbricante Cisco
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CHAPTER 5-1 Cisco MGX 8260 Hardware Installation Guide 78-10966-02 5 Connecting the Cables This chapter describes ho w to connect the interface cables, po wer the system, and check the status LEDs on circuit cards to make sure you ha ve installed e v erything properly .
5-2 Cisco MGX 8260 Hardware Installation Guide 78-10966-02 Chapter 5 Connecting the Cables Connecting the BITS Cable Connecting the BITS Cable A wiring diagram for a BITS cable is provided in Appendix A, “Cable and Connector Reference.
5-3 Cisco MGX 8260 Hardware Installation Guide 78-10966-02 Chapter 5 Connecting the Cables Connecting DS3 Coaxial Cables Step 2 Connect the other end of the cable to the Stratum timing standard in your facility . Step 3 If your system has a redundant SCC, repeat Step 1 and Step 2 for the adjacent SCC.
5-4 Cisco MGX 8260 Hardware Installation Guide 78-10966-02 Chapter 5 Connecting the Cables Connecting DS3 Coaxial Cables Figur e 5-2 Connecting Nonr edundant DS3 Cables T o connect DS3 cables to redundant BSCs, follow these steps. Note Label each cable with identifying information suitable for tracking in the MGX 8260 conf iguration database.
5-5 Cisco MGX 8260 Hardware Installation Guide 78-10966-02 Chapter 5 Connecting the Cables Connecting T1 Cables via RJ-21 Connectors Figur e 5-3 Connecting Redundant DS3 Cables Connecting T1 Cables via RJ-21 Connectors DS1 trunks consist of two pairs of tip and ring wires—one pair for transmit signals and one pair for receiv e signals.
5-6 Cisco MGX 8260 Hardware Installation Guide 78-10966-02 Chapter 5 Connecting the Cables Connecting T1 Cables via RJ-21 Connectors Step 5 T ighten the scre ws at the top and bottom of the recei ve 50-pin connector . Step 6 Repeat Step 1 through Step 5 for other NSC back cards.
5-7 Cisco MGX 8260 Hardware Installation Guide 78-10966-02 Chapter 5 Connecting the Cables Connecting E1 Cables via RJ-48 Connectors Connecting E1 Cables via RJ-48 Connectors Each E1 trunk consists of two pairs of tip and ring wires—one pair for transmit and one pair for recei ve.
5-8 Cisco MGX 8260 Hardware Installation Guide 78-10966-02 Chapter 5 Connecting the Cables Connecting E1 Cables via RJ-48 Connectors Figur e 5-5 Connecting E1 Cables PWR B PWR A -48VDC A RTN A BITS CO.
5-9 Cisco MGX 8260 Hardware Installation Guide 78-10966-02 Chapter 5 Connecting the Cables Connecting Fast Ethernet Cables Connecting Fast Ethernet Cables This procedure applies to systems that use Fast Ethernet interf aces on the SCC back card for V oIP applications.
5-10 Cisco MGX 8260 Hardware Installation Guide 78-10966-02 Chapter 5 Connecting the Cables Connecting OC-3 Cables Connecting OC-3 Cables Note This procedure applies to MGX 8260 nodes conf igured with SCC OC-3 back cards for f iber interf ace to Cisco MGX 8850 A TM switches.
5-11 Cisco MGX 8260 Hardware Installation Guide 78-10966-02 Chapter 5 Connecting the Cables Connecting OC-3 Cables Figur e 5-7 Connecting OC-3 Cables PWR B PWR A -48VDC A RTN A BITS CONSOLE AUX ALARM .
5-12 Cisco MGX 8260 Hardware Installation Guide 78-10966-02 Chapter 5 Connecting the Cables Connecting a Console Cable Connecting a Console Cable T o connect management console cables: Step 1 Connect an EIA/TIA-232 serial cable with a DB-9 connector to the SCC console connector .
5-13 Cisco MGX 8260 Hardware Installation Guide 78-10966-02 Chapter 5 Connecting the Cables Connecting Management Cables Connecting Management Cables An SCC back card includes two Ethernet ports for remote management. Each port is assigned its o wn IP address.
5-14 Cisco MGX 8260 Hardware Installation Guide 78-10966-02 Chapter 5 Connecting the Cables Connecting Visual and Audible Alarms Connecting Visual and Audible Alarms T o connect alarm relay contacts, follow these steps: Step 1 Prepare a custom, multiple-conductor alarm cable for visual or audio alarms in your facility .
5-15 Cisco MGX 8260 Hardware Installation Guide 78-10966-02 Chapter 5 Connecting the Cables Applying DC Power Step 5 Connect two return cables, one to each MGX 8260 R TN terminal for power circuit A. Connect the other ends to the R TN terminals at power source A.
5-16 Cisco MGX 8260 Hardware Installation Guide 78-10966-02 Chapter 5 Connecting the Cables Applying DC Power Figur e 5-1 1 MGX 8260 Rear View of P ower Connections 31644 PWR B -48VDC B RTN B PWR A -4.
5-17 Cisco MGX 8260 Hardware Installation Guide 78-10966-02 Chapter 5 Connecting the Cables Applying DC Power Figur e 5-12 Installing the P o wer T er minal Cover PWR A -48VDC A R TN A PWR B -48VDC B .
5-18 Cisco MGX 8260 Hardware Installation Guide 78-10966-02 Chapter 5 Connecting the Cables Verifying LED States Verifying LED States Immediately after po wer up, perform the following steps: Step 1 V erify that the PWR A indicator on each SCC is illuminated.
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 Cisco MGX 8260 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 Cisco MGX 8260 - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso Cisco MGX 8260 imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul Cisco MGX 8260 ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il Cisco MGX 8260, 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 Cisco MGX 8260.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il Cisco MGX 8260. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo Cisco MGX 8260 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.