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Installation Manual
H3C VG 31-08 Voice Gateway

Chapter 1 Product Overview

1-7

Attribute

Description

Cable

Straight-through cable, crossover cable

Frame format

Ethernet_II

Ethernet_SNAP

Operating mode

10/100 Mbps auto-sensing

Full duplex/Half duplex auto-sensing

Network protocol

III. FXS port

Table 1-5

Attributes of the FXS port

Attribute

Description

Connector RJ-11

Number of ports

Cable Telephone

cable

Interface
standard

Subscriber circuit interface compliant with ITU
Q.552

Overcurrent and overvoltage protection
compliant with ITU K.20

Dial-up mode

Supports GB3378-compliant DTMF instead of
pulse dialup

Frequency

300 Hz to 3400 Hz

Summary of Contents for VG 31-08

Page 1: ...H3C VG 31 08 Voice Gateway Installation Manual Hangzhou Huawei 3Com Technology Co Ltd http www huawei 3com com Manual Version T2 08042Y 20060707 C 1 00 ...

Page 2: ...ou Huawei 3Com Technology Co Ltd All other trademarks that may be mentioned in this manual are the property of their respective owners Notice The information in this document is subject to change without notice Every effort has been made in the preparation of this document to ensure accuracy of the contents but all statements information and recommendations in this document do not constitute the w...

Page 3: ...t provides all commands available in the H3C VG Series Voice Gateways as well as the command usage and examples H3C VG Series Voice Gateways Web based Configuration Manual It provides guidelines to Web based configuration on the H3C VG Series Voice Gateways Organization H3C VG 31 08 Voice Gateway Installation Manual is organized as follows Chapter Contents 1 Product Overview Profiles the core tech...

Page 4: ...the software of H3C VG 31 08 Voice Gateway 6 Troubleshooting Introduces possible symptoms and the solutions to them Conventions The manual uses the following conventions I Command conventions Convention Description Boldface The keywords of a command line are in Boldface italic Command arguments are in italic Items keywords or arguments in square brackets are optional x y Alternative items are grou...

Page 5: ... GUI conventions II Convention Description Button names are inside angle brackets For example click OK Window names menu items data table and field names are inside square brackets For example pop up the New User window Multi level menus are separated by forward slashes For example File Create Folder Symbols III Convention Description Warning Means reader be extremely careful Improper operation ma...

Page 6: ...plementary description Environmental Protection This product has been designed to comply with the requirements on environmental protection For the proper storage use and disposal of this product national laws and regulations must be observed ...

Page 7: ...rements 2 1 2 1 1 Temperature Humidity 2 1 2 1 2 Cleanliness 2 2 2 1 3 ESD Prevention 2 3 2 1 4 Electromagnetic Environment 2 4 2 1 5 Lightning Protection 2 4 2 1 6 Checking the Rack Workbench Tabletop 2 4 2 2 Safety Precautions 2 5 2 3 Tools Cables Meters and Devices 2 6 Chapter 3 Installing the VG 31 08 3 1 3 1 Installation Flowchart 3 1 3 2 Installing the VG 31 08 3 2 3 2 1 Tabletop Workbench M...

Page 8: ...4 9 4 2 1 Basic Configuration Procedures 4 9 4 2 2 Features of the Command Line Interface 4 9 4 2 3 Features of Web based Configuration 4 10 Chapter 5 Software Maintenance 5 1 5 1 Boot Menu 5 1 5 2 Upgrading Application and Boot ROM Programs Using XModem 5 4 5 2 1 Upgrading the Application Program 5 4 5 2 2 Upgrading the Full Boot ROM Program 5 7 5 2 3 Upgrading the Extended Segment of the Boot RO...

Page 9: ...rogram 5 16 5 6 Uploading Downloading Configuration File and Program Using FTP 5 17 5 6 1 Setting up Uploading Downloading Environment 5 17 5 6 2 Configuring the FTP Service on the VG 31 08 5 19 5 6 3 Uploading Downloading Application Boot ROM Program Configuration File 5 20 5 7 Solutions when the Password is Lost 5 22 5 7 1 When a user password is lost 5 22 5 7 2 When the Boot ROM Password is Los...

Page 10: ...re 3 4 Ethernet cable assembly 3 6 Figure 4 1 Local configuration through the console port 4 1 Figure 4 2 Set up a new connection 4 2 Figure 4 3 Set the connection port 4 3 Figure 4 4 Set communication parameters 4 4 Figure 4 5 Set the terminal type 4 5 Figure 5 1 The Send File dialog box 5 6 Figure 5 2 The Sending File interface 5 6 Figure 5 3 Set up an environment for upgrading through TFTP 5 12...

Page 11: ...es of the console port 1 6 Table 1 4 Attributes of the FE interface 1 6 Table 1 5 Attributes of the FXS port 1 7 Table 1 6 Attributes of the FXO port 1 8 Table 2 1 Temperature Humidity requirements in the equipment room 2 1 Table 2 2 Requirement on dust content in the equipment room 2 2 Table 2 3 Limits on harmful gas contents in the equipment room 2 2 ...

Page 12: ...orward the data The VG 31 08 provides abundant IP telephony features such as one to one FXS FXO port binding emergency function Voice over IP VoIP Fax over IP FoIP call control resource management and maintenance management as well as multiple coding schemes It also supports DHCP Client boasting excellent price performance ratio The VG 31 08 provides eight foreign exchange station FXS ports foreig...

Page 13: ...tion Manual H3C VG 31 08 Voice Gateway Chapter 1 Product Overview 1 2 1 2 Hardware Features 1 2 1 Appearance Figure 1 1 Appearance of the VG 31 08 Figure 1 2 VG 31 08 front panel Figure 1 3 VG 31 08 rear panel ...

Page 14: ...Fixed interfaces One console port Eight FXO ports Eight FXS ports One Ethernet interface Boot ROM 512 KB SDRAM 64 KB default 128 MB maximum Flash memory 8 MB Physical dimensions H W D 42 436 360 mm 1 7 17 2 14 2 in Weight 5 kg 11 0 lb Input voltage Rated voltage 100 VAC to 240 VAC 50 60 Hz Max voltage 90 VAC to 264 VAC 47 63 Hz Max power consumption 35 W ...

Page 15: ... 70 C 40 F to 158 F Operating relative humidity noncondensing 10 to 90 Working temperature Non operating relative humidity noncondensing 5 to 95 Note z Synchronous dynamic random access memory SDRAM is where the host applications are running z Flash memory stores programs and configuration files 1 2 3 LEDs The VG 31 08 has 19 LEDs in total as described in the following figure ...

Page 16: ...R OFF indicates the VG 31 08 is not powered on ON means the VG 31 08 is powered on FAN ON indicates the fan is running normally OFF means the fan is not running normally FXO 0 to 7 ON indicates there is a call FXS 0 to 7 ON indicates there is a call Ethernet interface OFF indicates that no LAN link is present ON indicates a LAN link is present Fast blinking indicates data is being sent and or tran...

Page 17: ...se ports I Console port CON Table 1 3 Attributes of the console port Attribute Description Connector RJ 45 Number of connectors 1 Cable Console cable Interface standard RS232 Baud rate 9600 bps default to 115200 bps Services Connection to an ASCII terminal Connection to a serial port on a local PC to run terminal emulation program on the PC II FE interface Table 1 4 Attributes of the FE interface ...

Page 18: ...sing Full duplex Half duplex auto sensing Network protocol IP III FXS port Table 1 5 Attributes of the FXS port Attribute Description Connector RJ 11 Number of ports 8 Cable Telephone cable Interface standard Subscriber circuit interface compliant with ITU Q 552 Overcurrent and overvoltage protection compliant with ITU K 20 Dial up mode Supports GB3378 compliant DTMF instead of pulse dialup Freque...

Page 19: ...ttribute Description Connector RJ 11 Number of connectors 8 Cable Telephone cable with ferrite bead Interface standard Trunk interface of the loop compliant with ITU Q 552 Overcurrent and overvoltage protection compliant with ITU K 20 Dial up mode Supports GB3378 compliant DTMF instead of pulse dialup Bandwidth 300 Hz to 3400 Hz ...

Page 20: ...g term high humidity will lead to bad insulation or even electricity leakage mechanical property change and corrosion However too low relative humidity is likely to leave captive screws loose due to contraction of insulation washers and static electricity that threatens the CMOS circuit on the device High temperature accelerates aging of insulation materials and lowers reliability and service life...

Page 21: ...dust content in the equipment room Max particle size μm 0 5 1 3 5 Max concentration number of particles per cubic meter 1 4 10 7 7 10 5 2 4 10 5 1 3 10 5 Besides dust there are rigorous limits on harmful gases that can accelerate erosion and aging of metals such as salts acids and sulfides as shown in the following table Table 2 3 Limits on harmful gas contents in the equipment room Gas Average mg...

Page 22: ...ve the following z Ensure the unit and the floor is connected to earth ground z Keep the equipment room clean z Maintain suitable temperature and humidity z Wear an ESD preventive wrist strap and uniform when handling the circuit board z Place the removed circuit board on an ESD preventive workbench or in an antistatic bag right side up z Hold the removed circuit board only by its edge when observ...

Page 23: ...fferent from that for the power supply system and keep them as far as possible z Keep the device far from radio transmitting station radar station and high frequency high current devices z Use electromagnetic shielding when necessary 2 1 5 Lightning Protection Although the VG 31 08 is designed to be lightning resistant excessive lightning interference can damage your device To protect your device ...

Page 24: ...rning appears in operations that if performed incorrectly might cause bodily injury or equipment damage Caution means care must be taken in these operations during installation and use Incorrect operations may result in abnormal running of the device Observe these safety precautions when installing and using the VG 31 08 z Keep the device far away from any heat source z Make sure that the device i...

Page 25: ... 2 3 Tools Cables Meters and Devices I Tools z ESD preventive wrist strap II Cables z Grounding cable and power cord z Console cable z Ethernet cable z Telephone cable III Meters and devices z Hub or Ethernet switch z Telephone or PBX z Configuration terminal or PC z Multimeter Caution The installation tools meters and devices are not provided with the VG 31 08 ...

Page 26: ...ter 3 Installing the VG 31 08 3 1 Installation Flowchart Connect the console terminal End no yes Connect the pow er cord Connect telephone cables Install the VG 31 08 at a specified location Connect the PGND OK Connect to the Ethernet Start Trouble shooting Figure 3 1 Installation flowchart ...

Page 27: ... 08 on any other equipment 3 2 2 Rack Mounting The VG 80 20 is designed with the following dimensions to be mounted in a standard 19 inch rack H W D 42 360 436 mm 1 7 14 2 17 2 in without feet Follow these steps to install the VG 80 20 see Figure 3 2 Step 1 Ensure that the rack is stable enough and properly grounded Attach the rack mount brackets to the front or rear of the chassis with screws Ste...

Page 28: ...k mount bracket 3 Guide rail Figure 3 2 Rack mounting of the VG 31 08 3 3 Connecting the Grounding Cable Warning Properly connect the grounding cable before connecting other cables and shorten the grounding cable as much as possible to protect the VG 31 08 and the peer device against lightning strikes ...

Page 29: ...xterior network is also channeled to the ground through the grounding cable The grounding screw of PGND is located on the rear panel Connect this screw to earth ground using a grounding cable The grounding resistance should not be greater than 5 ohm 3 4 Connecting to the Console Terminal I Console port The VG 31 08 provides a console port through which you can configure the device II Console cable...

Page 30: ... a console terminal The console terminal can be either a standard ASCII terminal with an RS232 serial port or more commonly a PC Step 2 Connect the cable Power down the console terminal and then connect the RS232 serial port on the console terminal to the console port on the VG 31 08 through the console cable 3 5 Connecting to the Ethernet I Ethernet cable For a 100BASE TX Ethernet interface you c...

Page 31: ... you are connecting the voice gateway to a PC or router use a straight through cable if you are connecting the device to a Hub or an Ethernet switch Note When preparing network cables use shielded cables preferentially for the sake of electromagnetic compatibility II Connecting the Ethernet cable Caution Read the mark above the interface carefully to avoid misconnection Follow these steps to conne...

Page 32: ...VG 31 08 can connect dual tone multi frequency DTMF phones through its eight telephone ports You may simply connect the FXS ports of the VG 31 08 with the telephone through the telephone cable Note You are recommended to set the telephone to DTMF mode as the VG 31 08 does not support pulse dialing otherwise you cannot place calls with the telephone 3 7 Connecting the Telephone Cable The cables use...

Page 33: ...The neutral point of the socket must be grounded reliably Normally the neutral point of the power supply system in a building was buried in the ground during construction and cabling Before you connect the AC power cord make sure that the power supply system in the building has been well grounded III Connecting the AC input power cord Step 1 Connect one end of the power cord to the AC input socket...

Page 34: ...before you power up the VG 31 08 during installation verify that z Enough clearance has been reserved around the VG 31 08 for ventilation and the tabletop workbench is stable enough z Proper power supply is used z The grounding cable has been correctly connected z The VG 31 08 has been correctly connected to other devices such as a console terminal Caution Installation verification is extremely im...

Page 35: ...terminal As shown in Figure 4 1 connect the RJ 45 connector of the console cable to the console port on the VG 31 08 and the DB9 connector to the serial port on the PC Figure 4 1 Local configuration through the console port II Setting terminal parameters Step 1 Start the PC and select Start Programs Accessories Communications HyperTerminal Step 2 The HyperTerminal window displays the Connection De...

Page 36: ...gure 4 2 Set up a new connection Step 2 Enter the name of the new connection in the Name field and click OK The dialog box as shown in Figure 4 3 displays Step 4 Select the serial port to be used from the Connect Using dropdown menu The serial port must be the same port connected by the console cable ...

Page 37: ...08 Voice Gateway 4 3 Figure 4 3 Set the connection port Step 5 Click OK The Port Settings tab shown in Figure 4 4 appears and you can set the serial port parameters Set the following parameters z Bits per second 9600 z Data bits 8 z Parity None z Stop bits 1 z Flow control None ...

Page 38: ...ing the VG 31 08 H3C VG 31 08 Voice Gateway 4 4 Figure 4 4 Set communication parameters Step 6 Click OK The HyperTerminal dialog box appears Step 7 Select Properties Step 8 In the H3C Properties dialog box select the Settings tab as shown in Figure 4 5 ...

Page 39: ... VG 31 08 H3C VG 31 08 Voice Gateway 4 5 Figure 4 5 Set the terminal type Step 9 Select VT100 or Auto detect in the Emulation dropdown menu Step 10 Click OK 4 1 2 Powering up the VG 31 08 I Checking before power up Before powering up the VG 31 08 verify that ...

Page 40: ...e VG 31 08 Then if an accident occurs you can quickly shut off the power II Powering up the VG 31 08 Power up the VG 31 08 III Checking operating after power up After powering up the VG 31 08 check to ensure that z The LEDs on the VG 31 08 front panel are in normal state z The console terminal display is correct After powering up the device you can see the startup interface on the console terminal...

Page 41: ...he following system information will be displayed on the terminal screen Note The contents displayed on the terminal could vary with different Boot ROM versions H3C Voice Gateway Bootrom Version 1 04 Copyright c 2004 2006 Hangzhou Huawei 3Com Tech Co Ltd Creation date Jan 7 2006 11 59 55 Testing memory OK 64M bytes SDRAM 8192k bytes Flash Memory Hardware Version is MTR 2 0 CPLD Version is CPLD 1 0...

Page 42: ...ce Gateway Boot ROM V1 04 appears Voice Gateway starts booting disappears immediately To enter the boot menu you should press Ctrl B within eight seconds after the prompt Press Ctrl B to Enter Boot Menu appears II System decompression and initialization The system displays Press ENTER key to get started when you see ATS0 1 System is starting ATS0 1 Press Enter and the system displays VG This promp...

Page 43: ...peration Manual 4 2 2 Features of the Command Line Interface The VG series voice gateways provide the command line interface CLI which allows you to implement hierarchical protections against unauthorized users In system view all the commands are put into different groups for the convenience of management each group being associated to a view You can switch between the views by executing particula...

Page 44: ... z Have detailed debugging information to troubleshoot your network z Enter the non conflicting keyword instead of the whole command for searching because the CLI supports command prompting For example you can simply enter dis to search for the display command 4 2 3 Features of Web based Configuration VG series voice gateways provide Web based configuration which is more direct and more convenient...

Page 45: ...on Manual H3C VG 31 08 Voice Gateway Chapter 4 Booting and Configuring the VG 31 08 4 11 z Bilingual display in English and Chinese For details refer to H3C VG Series Voice Gateways Web based Configuration Manual ...

Page 46: ... upgrading downloading Boot ROM and application program files as well as uploading downloading configuration files 5 1 Boot Menu This section introduces the boot menu that you use when maintaining the software of the VG 31 08 Set up a configuration environment see Figure 4 1 and then boot the VG 31 08 The console terminal displays H3C Voice Gateway Bootrom Version 1 04 Copyright c 2004 2006 Hangzh...

Page 47: ...s to access the boot menu after the prompt Press Ctrl B to Enter Boot Menu appears Otherwise the system starts decompressing the software z To access the boot menu after the system starts decompressing the program you need to reboot the device Input the correct password and press Enter If no Boot ROM password has been set just press Enter The system accesses the boot menu shown as follows Boot Men...

Page 48: ...grams Using XModem for details 2 Download the application program through the Ethernet 3 Clear the configuration files 4 Ignore the configuration file and start up with the initial configurations 5 Enter the Boot ROM submenu 6 Do not check the software version of the extended segment of Boot ROM this option is provided for backward compatibility in version upgrade 7 Exit the boot menu and reboot t...

Page 49: ...em You can use the console port to upgrade the software through XModem without the need of setting up a configuration environment 5 2 1 Upgrading the Application Program Step 1 Enter the boot Menu refer to section 5 1 Boot Menu and enter 1 to download an application program through XModem The VG 31 08 supports the following downloading rates Please choose your download speed 1 9600 bps 2 19200 bps...

Page 50: ...bps in this example After that disconnect the terminal Dial in Disconnect reconnect it Dial in Dialing and press Enter to start downloading The system displays Now Downloading Program File Please Start Transfer Program File And Use Xmodem Protocol If You Want To Exit Press Ctrl X Downloading CCCCC Note The new baud rate takes effect only after you disconnect and reconnect the terminal emulation pr...

Page 51: ... Chapter 5 Software Maintenance 5 6 Figure 5 1 The Send File dialog box Step 5 Click Browse select the application file to be downloaded set the protocol to XModem and click Send The following interface pops up Figure 5 2 The Sending File interface ...

Page 52: ...reconnect the terminal The system starts up normally 5 2 2 Upgrading the Full Boot ROM Program The Boot ROM program includes a basic segment and extended segment The full Boot ROM upgrade program provided for the user includes both segments while the extended segment upgrading program only includes the extended segment of the Boot ROM program If an error occurs during the upgrade of the full Boot ...

Page 53: ...xtended Segment of Bootrom to FLASH 5 Exit to Main Menu Enter your choice 1 5 Step 2 Enter 1 to download the Boot ROM program through XModem The VG 31 08 provides several speed options The subsequent operation steps are the same as those described in section 5 2 1 Upgrading the Application Program Caution You cannot restore the Boot ROM program on site if you fail to upgrade the full Boot ROM prog...

Page 54: ...h XModem The VG 31 08 provides several rate options The subsequent operation steps are the same as those described in section 5 2 1 Upgrading the Application Program Note This upgrade approach is only used to upgrade a portion of the Boot ROM program so you may make a second attempt once an error occurs 5 3 Backing up and Restoring the Extended Segment of the Boot ROM Program 5 3 1 Backing up the ...

Page 55: ...egment of Boot ROM Program from Flash Memory If faults occur to the extended segment of the Boot ROM program or you upgrade it wrongly you can restore the extended segment saved in the Flash memory to the Boot ROM by following these steps Step 1 Enter the boot menu refer to section 5 1 Boot Menu and enter 5 to enter the Boot ROM submenu Step 2 Enter 3 in the Boot ROM submenu to restore the extende...

Page 56: ...Press Ctrl D to enter the Boot ROM menu When the VG system boots the system prompts Voice Gateway starts booting If you press Ctrl D at this moment the system will display Please input Bootrom password Input the correct password and then press Enter If no Boot ROM password has been set directly press Enter The system will display the boot menu as follows Boot Menu 1 Download Extended Segment of Bo...

Page 57: ...d the extended segment of Boot ROM or enter 3 to boot from the Boot ROM backed up to the Flash memory 5 5 Upgrading the Application Program Using TFTP The VG 31 08 supports application program upgrade using TFTP The steps of application program upgrade using TFTP are as follows 5 5 1 Setting up an Upgrading Environment Consoleport Console port cable RS232 serial port PC Ethernet interf ace 10 110 ...

Page 58: ...e TFTP Server program and you should purchase and install it by yourself Step 4 Copy the new application file to a directory C H3C for example Step 5 Configure the IP address for the fast Ethernet FE interface on the PC 10 110 10 13 for example 5 5 2 Running TFTP Server Step 1 Run the TFTP Server on the PC Step 2 Specify a directory for the new application program 5 5 3 Configuring the VG 31 08 St...

Page 59: ... Configure TFTP parameters NETWORK INTERFACE PARAMETERS Configure the network interface parameters for the VG 31 08 including the port to be used its IP address and the subnet mask Do you want a LAN interface N y This board s LAN IP address 169 254 10 10 10 110 10 10 Subnet mask for LAN 0 for none 255 255 0 0 TFTP SERVER PARAMETERS Configure the TFTP Server parameters including the IP address of t...

Page 60: ... 110 10 10 Subnet mask for LAN 0 for none 255 255 0 0 must be the IP address and subnet mask of LAN0 z The IP addresses of the PC network interface and the LAN port of the VG 31 08 must reside in the same network segment Step 3 Confirm parameter settings After you enter the last parameter the system displays the following information and requests you to confirm the parameter settings NETWORK INTER...

Page 61: ...nue M Press C to confirm the configurations 5 5 4 Downloading the Application Program Step 1 Boot the system and enter the boot menu Step 2 Enter 2 in the boot menu to download the application program using TFTP The following message appears Download application program are you sure Y N Y If the PC running the TFTP Server is ready press Y to download the program Starting the TFTP download After th...

Page 62: ... program Any FTP client local or remote connected to the VG 31 08 can update configuration files or upgrade application Boot ROM program using FTP After passing the authentication you can update the configuration file or upgrade the application Boot ROM program as described below Note z Uploading is to transfer files from an FTP client to the VG that is the put operation z Downloading is to transf...

Page 63: ...10 10 13 for example to the FE interface on the VG 31 08 Step 3 Assign an IP address 10 110 10 10 for example to the Ethernet interface on the PC Step 4 Copy the application Boot ROM program configuration file to the destination directory C version for example Caution The IP addresses assigned to the interfaces on the PC and the VG 31 08 must reside on the same network segment z Setting up an envi...

Page 64: ...h other Step 2 Copy the application Boot ROM program configuration file to the destination directory C version for example 5 6 2 Configuring the FTP Service on the VG 31 08 Step 1 Set an authentication method Note You can make AAA configurations as needed For information about related operations refer to H3C VG Series Voice Gateways Operation Manual Step 2 Add a username and its password VG local ...

Page 65: ...ogram configuration file in the MS DOS command prompt window Carry out the ftp command to set up an FTP connection with the VG 31 08 For example C version ftp 10 110 10 13 If the connection is successfully set up the following information appears taking Windows 98 for example Connected to 10 110 10 13 220 FTP server ready on Voice Gateway at User 10 110 10 13 none Step 2 Log on to the FTP server u...

Page 66: ...ull z Upload the application Boot ROM program configuration file ftp put Input put to perform uploading local file Input the name of the application Boot ROM program configuration file to be uploaded remote file Input the name used to save the application Boot ROM program configuration file to be uploaded on the VG Upon the completion of the uploading the ftp prompt appears again Enter dir to view...

Page 67: ...r quit to terminate the ftp connection 5 7 Solutions when the Password is Lost If you have lost the VG 31 08 Boot ROM password or a user password use one of the following methods 5 7 1 When a user password is lost I Clearing system configuration Step 1 Enter the boot menu and enter 3 to clear the system configuration The system displays Clear config are you sure Y N y Press Y The system displays t...

Page 68: ...the new user password and administrator means that it is a super user password Step 4 Save the new configurations VG save Note It is required to carry out the save command to save the new password II Starting up while ignoring configurations Step 1 Enter the boot menu and enter 4 to start the system while ignoring configurations The system displays Boot Menu 1 Download application program with XMO...

Page 69: ...ss Boot Menu 1 Download application program with XMODEM 2 Download application program with NET 3 Clear configuration 4 Start up and ignore configuration 5 Bootrom Operation Menu 6 Do not check the version of the software 7 Exit and reboot Enter your choice 1 7 7 Step 2 When the boot menu appears again enter 7 to exit the boot menu The system displays Exit and reboot are you sure Y N y Press Y The...

Page 70: ...onfiguration file is still saved in the Flash memory To restore the last configurations you can use the display saved configuration command to display the configurations and then copy and apply them Step 4 Save the new configurations VG save Note It is required to execute the save command to save the new password 5 7 2 When the Boot ROM Password is Lost Contact your agent if you have lost the Boot...

Page 71: ...d on z The power cord is connected correctly z Correct mains supply is used Caution Do not hot swap the power cord Contact your agent if the PWR LED is still OFF after the above items are confirmed 6 2 Troubleshooting the Configuration System If the system operates normally after being powered up it displays the start up information on the console terminal If the configuration system has failed it...

Page 72: ...If you cannot locate the problem yet check the console cable and the terminal e g HyperTerminal parameter settings II Illegible characters on the terminal 1 Symptom The powered up VG 31 08 displays illegible characters on the console terminal 2 Solution Make sure you have set the following parameters on your terminal HyperTerminal z Baud rate 9600 z Data bits 8 z Parity none z Stop bits 1 z Flow c...

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