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BROADway I NSTALLATION M ANUAL Part Number: 770-0125-AB Product Rele ase: 4.00 March 2004.
Copyright© 2004 Carrier Access Corporat ion. All rights reserved. The information presented in this manual is subject to change without notice and does not represent a commitment on the part of Carrier Access Corporation. The hardware and softwa re described herein are furnished under a license or n on- disclosure agreement.
P REFACE Preface Compliance Safety of Information Technology Equipment BROAD way is safety certified by an independent laboratory and is co mpliant with the following safety standards: FCC Requirements, Part 15 This device complies with Part 15 of the FCC Ru les.
iv BROADway - Release 4.00 Preface Compliance FCC Requirements, Part 68 The following instructi ons are pr ovided to ensure compliance w ith the Federal Communications Commission (FCC) Ru les, Part 68. 1. This equipment complies with Pa rt 68 of the FCC rules.
BROADway - Release 4.00 v Preface Compliance Industry Canada ICES-003 English This class A digital apparatus complies with Canadian ICES-003. French Cet appareil numérique de la classe A est conforme à la norme NMB-003 du Canada.
vi BROADway - Release 4.00 Preface Safety Information Safety Information CAUTION! A LWAYS USE CAUTION WHEN INSTALLING TELEPHONE LINES . R EA D THE CAUTIONS BELOW FOR DE TAILS ON SAFETY GUIDELINES TO PREVENT INJ URY .
BROADway - Release 4.00 vii Preface Electrostatic Discharge (ESD) Precautions Electrostatic Discha rge (ESD) Precautions ESD can damage processors, circuit cards, and ot her electronic components. Always observe the following precautions before installing a system component.
viii BROADway - Release 4.00 Preface Warranty Warranty Carrier Access warrants to BU YER that Products are free from substantial defect in material and workmanship under normal use given proper installation and maintenance for a period of two (2) years from the date of shipment by Carrier Access.
BROADway - Release 4.00 ix Preface Third-Party Soft ware Notices Third-Party Software Notices Sun Microsystems, Inc., Software Notice Use of the Sun Microsystems, Inc., soft ware included in this release is go verned by the Sun Microsystems, Inc., terms and conditions stated below: Copyright 1994-2004 Sun Microsystems , Inc.
x BROADway - Release 4.00 Preface Third-Party Soft ware Notices.
T ABLE OF C ONTENTS Preface Compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iii Safety Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vi Notices .
xii BROADway - Relea s e 4. 00 Table of Contents Applying Power to the Chassis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-29 Maintaining BROAD way Hardware . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-30 Installing New Cards .
BROADway - Release 4.00 xiii Table of Contents A Ports and Cables Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-2 SCP-1 and SCP-2 Connector Pinouts . . . . . . . . . . . . . . . . . . . .
xiv BROADway - Relea s e 4. 00 Table of Contents.
C HAPTER 1 Introduction In This Chapter # Overview.
1-2 BROADway - Release 4.00 Introduction Overview Overview Congratulations on your purchase of the Carrier Access BROAD way system, a single platform supporting a variety of applications at the edge of the broadband ne twork for electrical and optical, circuit-switched and packet- based networking.
C HAPTER 2 Installation In This Chapter # Overview # Chassis Overview # Mounting the Chassis in a Rack # Cabling Power and Ground # Cabling the Serial Craft Port # Cabling the Ethernet Port # Cabling .
2-2 BROADway - Release 4.00 Installation Overview Overview The BROAD way system is composed of a chassis, cont rol cards, and various line interface card options.
BROADway - Release 4.00 2-3 Installation Chassis Overview Some line interface cards are cabled directly at th e card while others are accessed and cabled through the top I/O panel of the BROAD way system.
2-4 BROADway - Release 4.00 Installation Mounting the Chassis in a Rack All configurable items in the BROAD way chassis are managed through the software interfa ce. The backplane of the BROAD way chassis is keyed to prevent you from inserting a card in the incorrect slot.
BROADway - Release 4.00 2-5 Installation Mounting the Chassi s in a Rack The BROAD way chassis can be installed within a rack in two different ways: ! Front-mounted (flush with the front of the rack) —This is the most commonly used mounting option when the rack is st urdily mounted to a wall.
2-6 BROADway - Release 4.00 Installation Cabling Power and G round 3. If you are mounting the chassis in a 23-inch rack , use the four screws that come with each extension bracket (pro vided with the chassis) to attach the brackets to the mounting ears.
BROADway - Release 4.00 2-7 Installation Cabling Power and Ground 3. On the back of the chas si s are two separate DC feeds ( FE ED A and FEED B ). Remove the green connector from the FEED A plug. 4. Attach the appropriate leads to the connector. Your power wires will ori ginate from your DC power source.
2-8 BROADway - Release 4.00 Installation Cabling Power and G round W ARNING! T HE BROAD WAY CHASSIS DOES NOT PROVIDE AUTOMATIC POLARITY CORRECTION . T HAT IS , IF YOU ATTACH THE SUPPLY WIRES IN THE WRONG ORDER , THE INPUT POWER FUSE WILL BLOW . S PARE FU SES ARE ENCLOSED WITH EACH BROA D WAY CHA SSIS TO HANDLE THIS SITUATION .
BROADway - Release 4.00 2-9 Installation Cabling the Serial Craft Port Cabling the Serial Craft Port On the top I/O panel of the BROAD way chassis there are two serial ports: SCP-1 and SCP-2 . These serial ports are used for craft access and will support a local or modem attached command line interface.
2-10 BROADway - Release 4.00 Installation Cabling the Network Synchronization Port Cabling the Network Synchronization Port There are two chassis types, BITS and ITU; the di fference is in the number and type of network synchronization ports.
BROADway - Release 4.00 2-11 Installation Cabling the Ala rm Ports Cabling the Clock Port s on the ITU Chassis On the front panel of the chassis are two pairs of synchronization clock ports: CKIN-1 and CKOUT-1 , and CKIN-2 and CKOUT-2 (one pair is redundant for the other).
2-12 BROADway - Release 4.00 Installation Cabling the Alarm Ports ! Alarm generation #1 and #2 (alarm outputs) —These are used to generate an alarm from the BROAD way chassis to an external unit, such as an alarm siren, aisle alarm lights, alarm telemetry systems, and so forth.
BROADway - Release 4.00 2-13 Installation Installing the NSP101 Control Card Alarm Output Reporting During a Critical or Major alarm condi tion on BROAD way, the normally open co ntact (pin 1) is closed, and the normally closed co ntact (pin 3) is opened.
2-14 BROADway - Release 4.00 Installation Installing the NSP101 Con trol Card To install the NSP101, op en the ejector tabs and slide the card into its proper slot until you feel resistance, then push to close the ejector tabs into their locking position against the metal rails.
BROADway - Release 4.00 2-15 Installation Installing the NSP101 Control Card Alarm present: Power input status: By default, BROAD way is software configured to expect redun dant power (using FEED A and FEED B ). If you do not wire one of these inputs, the PWR LEDs will lamp as if there was an alarm condition.
2-16 BROADway - Release 4.00 Installation Installing the NIP400 Line Interface Card Installing the NIP400 Line Interface Card BROAD way supports up to eight NIP40 0 quad T1/E1 line interface cards installed in slots NIP-1 through NIP-8. To supp ort NIP400 redundant operatio n, you must install a NIP400 card in slot NIP-8.
BROADway - Release 4.00 2-17 Installation Installing the NIP400 Line Interface Card Cabling the NIP400 Use the NIP TX1 , NIP TX2 , NIP RX1 , and NIP RX2 25 pair connectors on th e front I/O panel to connect the eight NIP400 slots in the BROAD way chassis to your punch down blocks or DSX panels.
2-18 BROADway - Release 4.00 Installation Installing the NIP400 Line Interface Card NIP400 LED Indicators Each NIP400 line card has two LED indicators th at describe the operational status of the module itself. There is a further single LED indicator per physical interface that describes the status of the modules four line interfaces.
BROADway - Release 4.00 2-19 Installation Installing the NHP1 60 Line In terface Card Installing the NHP160 Line Interface Card BROAD way supports up to two NHP160 sixteen p ort T1 /E1 line interface cards installed in slots UIP- 1 and UIP-2.
2-20 BROADway - Release 4.00 Installation Installing the NHP1 60 Line In terface Card 4. Connect the other end of the cabl es to your terminating equipment. For cable pinouts of the NHP16 0 SCSI port connector, see NHP160 Connector Pinouts on page A-8 .
BROADway - Release 4.00 2-21 Installation Installing the BSP200 Line Interface Card Installing the BSP200 Line Interface Card BROAD way supports up to four BSP2 00 single port DS3/mapper lin e interface cards installed in positions BSP-1, BSP-2, BSP-3 and BSP-4.
2-22 BROADway - Release 4.00 Installation Installing the BSP200 Li ne Int e rf ace Card Cabling the BSP200 The BSP200 line interface cards use the 75Ohm BNC ports TX1/R X1 , TX2 /RX2 , TX3/RX3 , and TX4/ RX4 respectively on the top I/O panel of the BROAD way chassis.
BROADway - Release 4.00 2-23 Installation Installing the BSP200 Line Interface Card If the card failure sequence is displayed, remove th e card and re-insert it into the chassis. If the card failure sequence is still displa yed, then replace the card.
2-24 BROADway - Release 4.00 Installation Installing OSP1 55/ESP155/BC P155 Line Interface Cards Installing OSP155/ESP155/BCP155 Line Interface Cards BROAD way supports up to four OSP1 55, ESP155 or BCP155 sin gle port OC3/STM1 line cards installed in positi ons OSP-1, OSP-2, OS P-3 and OSP- 4.
BROADway - Release 4.00 2-25 Installation Installing OSP155/ESP155 /BCP155 Line Interface Cards Cabling the OSP155 and BCP155 OSP155 and BCP155 cables should be attached to the line interface card before installing in the BROAD way chassis.
2-26 BROADway - Release 4.00 Installation Installing OSP1 55/ESP155/BC P155 Line Interface Cards 2. Insert the cards into the chassis. Open the ejector tabs and slide the card into its proper slot until you feel resistance, then push to close the ejector tabs into their locking position against the metal rails.
BROADway - Release 4.00 2-27 Installation Installing OSP155/ESP155 /BCP155 Line Interface Cards Cabling the ESP155 ESP155 cables should be attached to the line interface card before installing in the BROAD way chassis. To cable and insert the ESP155 line interface card: 1.
2-28 BROADway - Release 4.00 Installation Attaching the Front Panel Line status (per port): Attaching the Front Panel After inserting the cards and cabling the BROAD way you must se cure the front panel to the BROAD way chassis. To attach the front panel: 1.
BROADway - Release 4.00 2-29 Installation Applying Power to the Chassis Applying Power to the Chassis Locate the power switches on the rear of the chassis ( O/I ) and turn them on ( I ). After powering up the BROAD way chassis, all the LEDs will go through an in itialization process where they all light.
2-30 BROADway - Release 4.00 Installation Maintaining BROADway Ha rdware Maintaining BROADway Hardware To maintain your BROAD way hardware you migh t need to: ! Install new cards to increase ca pacity.
BROADway - Release 4.00 2-31 Installation Maintaini ng BROADway Ha rdware Installing Additional OSP 155, ESP155 or BCP155 Cards To install an additional OSP155 , ESP155, or BCP155 car d, install the card as described in Installing OSP155/ESP155/BCP1 55 Line Interfa c e Ca rds on page 2-24.
2-32 BROADway - Release 4.00 Installation Maintaining BROADway Ha rdware To Replace a BCP155, OSP1 55, or ESP155 Card 1. Remove th e cable of th e card from the gromme t so that you can easily slide the card out. 2. Remove the card by opening the ejector and sliding out the card.
C HAPTER 3 Configuration In This Chapter # Overview # Assigning an IP Addres s to the BROADway System # Management Access to the BROADway System # Logging In With the Web Browser Interface (GUI) # Log.
3-2 BROADway - Release 4.00 Configuration Overview Overview At this point, the BROAD way hardware should have been planne d, mounted and cabled as des cribed in Chapter 2, Installation . Now, you must begin to config ure the BROAD way system software for your application.
BROADway - Release 4.00 3-3 Configuration Assigning an IP Address to the BROADway System Assigning an IP Address to the BROADway System Should you decide to access the BROAD way syst em rem otely thro.
3-4 BROADway - Release 4.00 Configuration Assigning an IP Address to the BROADway System Assigning a Different IP Address If you plan to use network interface bridging suppo rt in your BRO AD way syst.
BROADway - Release 4.00 3-5 Configuration Assigning an IP Address to the BROADway System Creating a Bridge Vi rtual Interface (BVI) Before you can add an interface to a bridge group, you should first create th e bridge virtual interface (BVI) which attaches the bridge-g roup to the IP router.
3-6 BROADway - Release 4.00 Configuration Assigning an IP Address to the BROADway System To change the state of the BVI to “up”, use the following PS commands: PS# configure PS(NSP-config)# interf.
BROADway - Release 4.00 3-7 Configuration Management Access to the BROADway System Management Access to the BROADway System To further configure the BROAD way system, you can access th e unit through:.
3-8 BROADway - Release 4.00 Configuration Management Access to the BROADw ay System Ethernet Port Command Line Acces s 1. Connect your PC or workstati on to one of the Ethernet ports (see Cabling the Ethernet Port on page 2-9) and open a Telnet session to the IP address of the BROAD way system (e.
BROADway - Release 4.00 3-9 Configuration Logging In With t he Web Browser Interface (GUI) Logging In With the Web Browser Interface (GUI) You can access the BROAD way GUI using these minimum versions of the Microsoft or Netscape web browsers: ! Netscape Communicator 4.
3-10 BROADway - Release 4.00 Configuration Logging In With the Web Browser Interf ace (GU I) 6. If the following message appears when the PC is loading the applet, then click the Grant Always button.
BROADway - Release 4.00 3-11 Configuration Logging In With t he Web Browser Interface (GUI).
3-12 BROADway - Release 4.00 Configuration Logging In With the Web Browser Interf ace (GU I) 8. The browser window will change to reflect the BROAD way configuration applet loader, and then you will be presented with the BROAD way applet window as shown in the following figure.
BROADway - Release 4.00 3-13 Configuration Logging In With the Command Line Interfa ce (CLI) Logging In With the Command Line Interface (CLI) Once you have command line management access to the BROAD way system (you are at the NSP1> or NSP2> prompt), you can log in.
3-14 BROADway - Release 4.00 Configuration Setting Up User Account s Setting Up User Accounts Some of the procedures described in this manual require a minimum permission level.
BROADway - Release 4.00 3-15 Configuration Setting Up User Accounts User Account Manage ment Using the GUI To manage user accounts: 1. In the menu bar, click Admin , then Accounts . 2. The Accounts window displays a list of users that have access to the BROAD way system and what their permission levels are.
3-16 BROADway - Release 4.00 Configuration Setting Up User Account s User Account Management Using TL1 Viewing Existing User Accounts To show all users that have accounts on the BROAD way system, use .
BROADway - Release 4.00 3-17 Configuration Setting Up User Accounts For example: ENT-USER::NSP:1234::joetech,mypas sword,ADMIN,TL1; This command adds an account to the sys tem where the user name is joet ech , the password is mypassword, the security level is ADMIN and the default shell is TL1 .
3-18 BROADway - Release 4.00 Configuration Changing Your Password Changing Your Password A user can change his or he r own password. Only us ers with Administrator privileges can change other users passwords. NOTE: Passwords are case sensitive. Changing Your Password Using the GUI To change your password from the GUI: 1.
BROADway - Release 4.00 3-19 Configuration Setting the System Date and Time Setting the System Date and Time The BROAD way system maintains a real-time clock to assist in ensuring event and alarm times are properly recorded in the system. This section describes how to set the real-time clock from the GUI and command line interfaces.
3-20 BROADway - Release 4.00 Configuration Setting System Node Parameters Setting System Node Parameters System node parameters are system wide settings that enable the oper ator to configure various options such as: BROAD way location, the contact information of th e system administrato r and whether or no t power redundancy is enabled.
BROADway - Release 4.00 3-21 Configuration Setting System Node Parameters Setting System Node Parameters Us ing TL1 To view system data (such as system name and system location), use the RTRV-UDATA TL.
3-22 BROADway - Release 4.00 Configuration Setting System Node Parameters To view the power in put redundancy status of the system, use the RTRV-EQPT TL1 command: RTRV-EQPT::NSP-x.
BROADway - Release 4.00 3-23 Configuration Managing the BROADway Configurati on Dat aba se Managing the BROADway Configuration Database BROAD way stores all configuration information in a database located in the non-volatile (flash) memory-based file system in both the primary and backup (if installed) NSP 101 cards.
3-24 BROADway - Release 4.00 Configuration Managing the BROADway Confi guration Database Managing the Database Using the GUI To modify th e conf iguration database status using the GUI interface: 1. In the menu bar, clic k Admin , then Database . 2. The Database Management window will appear.
BROADway - Release 4.00 3-25 Configuration Managing the BROADway Configurati on Dat aba se 4. To delete a database, select it under Offline and click Delete . You cann ot delete th e database that is either RUNNING or SAVED . To delete a database that is RUNNING or SAVED , you must copy an alternative database file to SAVED .
3-26 BROADway - Release 4.00 Configuration Managing the BROADway Confi guration Database To delete an OFFLINE database, use the DLT-DB TL1 command: DLT-DB::NSP:1234:: <name> ; <name> —User defined OFFLINE database name.
BROADway - Release 4.00 3-27 Configuration Managing the BROADway Configurati on Dat aba se Copying Files Between NSP101 Controllers On some occasions, it might be useful to copy files from the working NSP1 01 controller to the protection, or backup, contro ller (for example, to copy scripts for Node Level APS support).
3-28 BROADway - Release 4.00 Configuration Using FTP with the BROADway System Restart both NSP101 control cards in a redundant configuration. (This is a service affecting reboot.
BROADway - Release 4.00 3-29 Configuration Upgrading System Software FTP can be used to re trieve information that can be useful to Carrier Access in debugging problems that have been experienced on the system, or for uploading new sy stem softw are releases to the BROAD way system.
3-30 BROADway - Release 4.00 Configuration Upgrading System Software 3. Use an FTP client program to open an FT P session to the BROAD way node and up load the system software file to the /FLASH folder . This example shows the standard Microsoft Windows FTP client.
BROADway - Release 4.00 3-31 Configuration Upgrading System Software 4. To complete the software upgrade, use the set-upgrade command to d ecompress the software image, copy it to th e backup NSP101 and reboot the BROAD way system: NSP1> set-upgrade::nsp:1234::bw308 ,all; Sending file /FLASH/bw308.
3-32 BROADway - Release 4.00 Configuration Upgrading System Software Rolling Back a Software Update Should you want to reload a prev ious software version in to the BROAD way system, the process is the same as the one previously outlined, but with one exception.
BROADway - Release 4.00 3-33 Configuration Upgrading System Software 1. Once the new system software has been loaded and the BROAD way units have re booted and synchronized (see Upgrading System Softw.
3-34 BROADway - Release 4.00 Configuration Upgrading System Software TL1 Software Upgrade Commands To display the version of system software running on your BROAD way, use the RTRV-SW-VER TL1 command: RTRV-SW-VER:: <aid> :1234::ALL; <aid> — NSP-1 , NSP-2 , or NSP (for both NSPs).
A PPENDIX A Ports and Cables In This Appendix # Overview # SCP-1 and SCP-2 Connector Pinouts # ETH-1 and ETH-2 Connector Pinouts # CKIN-1 and CKIN-2 Connect or Pinouts (BITS Only) # NIP400 Connector P.
A-2 BROADway - Release 4.00 Ports and Cables Overview Overview This appendix cont ains inform ation about the ports on the BROAD way chassis and the cables use d with the BROA D way chassis. SCP-1 and SCP-2 Connector Pinouts SCP-1 and SCP-2 are male, DB9 ports.
BROADway - Release 4.00 A-3 Ports and Cables ETH-1 and ETH-2 Connecto r Pinouts ETH-1 and ETH-2 Connector Pinouts ETH-1 and ETH-2 are female, 10-BaseT, RJ45 ports (IEEE 802.3 compliant). Th ey are identical, except that their transmit and receive pairs are reversed.
A-4 BROADway - Release 4.00 Ports and Cables CKIN-1 and CKIN-2 Connector Pinou ts (BITS Only) CKIN-1 and CKIN-2 Connector Pinouts (BITS Only) On the BITS version of the chassis, CKIN-1 and CKIN-2 are female, RJ45 ports (Bellcore specification GR-1244).
BROADway - Release 4.00 A-5 Ports and Cables NIP400 Connector Pinouts (NIP TX1–RX1, NIP TX2–RX2) NIP400 Connector Pinouts (NIP TX1–RX1, NIP TX2–RX2) NIP TX1 , NIP RX1 , NIP TX2 , and NIP RX2 are male 25 pair connections.
A-6 BROADway - Release 4.00 Ports and Cables NIP400 Connector Pinouts (NIP TX1–RX1, NIP TX2–RX2) Pin 50 on connectors #1 , #2, #3, and #4 is a drain wire connec ted to chassis grou nd. As the pinouts show, if yo u are not installing NIP400 cards in NIP- 5 through NIP-8, you do not need to connect the ports NIP TX2 and NIP RX2 .
BROADway - Release 4.00 A-7 Ports and Cables ALARMS Connector Pinouts ALARMS Connector Pinouts The ALARMS port is a female, DB15 port. These are the pinouts of the ALARMS port. For the relay contacts on this port, th e maximum ratings are 200V DC, or 2 amps, o r 30 watts.
A-8 BROADway - Release 4.00 Ports and Cables NHP160 Connector Pinouts NHP160 Connector Pinouts There are several cables you ca n use to c onnect the NHP160 cards.
BROADway - Release 4.00 A-9 Ports and Cables NHP160 Connector Pinouts 28 white/green band T1E1_RxTIP0 29 white/brown band T1E1_TxTIP0 30 white/gray band T1E 1_TxTIP3 31 red/blue band T1E1_RxTIP3 32 re.
A-10 BROADway - Release 4.00 Ports and Cables NHP160 Connector Pinouts 59 gray/purple T1E1_T xRNG8 60 blue/white band T1E1_TxRNG1 61 orange/white band T1E1_RxRNG1 62 green/white band T1E1_RxRNG0 63 br.
I NDEX A Accounts GUI . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-14 TL1 . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-16 Alarm reporting . . . . . . . . . . . . . . . . . . . . . . 2-13 Alarm sense . . . . . . . . . . . . . . . .
Index - 2 BROADway - Release 4.00 Index I I Inserting BCP155 cards . . . . . . . . . . . . . . . . . . . . 2-24 NHP160 card . . . . . . . . . . . . . . . . . . . . . 2-19 OSP155 cards . . . . . . . . . . . . . . . . . . . . 2 -24 Installing BCP155 cards .
BROADway - Release 4.00 Index - 3 Index U U Upgrading software CLI . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-34 GUI . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-29 User accounts GUI . . . . . . . . . . . . . . . . . . . . . .
Index - 4 BROADway - Release 4.00 Index V.
Een belangrijk punt na aankoop van elk apparaat Carrier Access 770-0125-AB (of zelfs voordat je het koopt) is om de handleiding te lezen. Dit moeten wij doen vanwege een paar simpele redenen:
Als u nog geen Carrier Access 770-0125-AB heb gekocht dan nu is een goed moment om kennis te maken met de basisgegevens van het product. Eerst kijk dan naar de eerste pagina\'s van de handleiding, die je hierboven vindt. Je moet daar de belangrijkste technische gegevens Carrier Access 770-0125-AB vinden. Op dit manier kan je controleren of het apparaat aan jouw behoeften voldoet. Op de volgende pagina's van de handleiding Carrier Access 770-0125-AB leer je over alle kenmerken van het product en krijg je informatie over de werking. De informatie die je over Carrier Access 770-0125-AB krijgt, zal je zeker helpen om een besluit over de aankoop te nemen.
In een situatie waarin je al een beziter van Carrier Access 770-0125-AB bent, maar toch heb je de instructies niet gelezen, moet je het doen voor de hierboven beschreven redenen. Je zult dan weten of je goed de alle beschikbare functies heb gebruikt, en of je fouten heb gemaakt die het leven van de Carrier Access 770-0125-AB kunnen verkorten.
Maar de belangrijkste taak van de handleiding is om de gebruiker bij het oplossen van problemen te helpen met Carrier Access 770-0125-AB . Bijna altijd, zal je daar het vinden Troubleshooting met de meest voorkomende storingen en defecten #MANUAl# samen met de instructies over hun opplosinge. Zelfs als je zelf niet kan om het probleem op te lossen, zal de instructie je de weg wijzen naar verdere andere procedure, bijv. door contact met de klantenservice of het dichtstbijzijnde servicecentrum.
