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Hardware Reference

105

C613-03031-01 REV E

4.

Replace the router lid and the power cord.

Secure the router’s lid. If you disconnected an RPS supply, reconnect it
now.

AT-AR720 Dip Switch Settings

A DIP switch is used to change functional characteristics of the base CPU card.
Figure 65 on page 105 shows the DIP switch’s location on the AT-AR720’s base
CPU card. DIP switch functions are shown in Table 39 on page 106.

All DIP switches should be left in the factory default positions unless advised
by your distributor or reseller that they need to be changed. Jumpers should
only be replaced by authorised service personnel. Unauthorised opening of the
router lid may cause danger of injury from electric shock, damage to the router,
and invalidation of the product warranty.

Figure 65: Location of main components, jumpers and DIP switch on the AT-AR720 base CPU card.

720CPU

LED

POWER

BOOT EPROM 0

DIP SW

S/N

PIC SLOT

PORT 0

ETHERNET 0

Tx
Rx

SLIDE-IN BAY 0

PIC SLOT

SLIDE-IN BAY 1

RJ45

PORT 1

RJ45

RJ45

Col
Lnk

100

FD

Clr

Sec

Err

Sys

D

Run

Act

Pwr

LED

LED

LED

LED

LED

LED

LED

LITHIUM BATTERY

DO NOT

DISPOSE IN FIRE

FLASH SIMM

MAC CARD SLOT

BOOT EPROM 1

LED

RUN

LED

SYSTEM

LED

CLEAR

LED

SECURITY

+12V

+5V

+5V

+5V

0V

0V

0V

0V

-12V

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Содержание AR Router Series

Страница 1: ...AR SERIES ROUTER HARDWARE REFERENCE...

Страница 2: ...ht to make changes in specifications and other information contained in this document without prior written notice The information provided herein is subject to change without notice In no event shall...

Страница 3: ...erator Cards MACs 58 How MACs work 58 Compression 59 Encryption 59 Dual Mode 60 PCI Accelerator Cards PACs 60 How PACs work 60 Compression 61 Encryption 62 Dual Mode 62 Flash Memory 63 Testing Flash M...

Страница 4: ...4 AR Router C613 03031 01 REV E Installing a MAC 94 Installing a PAC 98 Installing a Flash SIMM 104 AT AR720 Dip Switch Settings 105 Diagnostics 106 Replacing Boot EPROMs 108 Contacting Us 111...

Страница 5: ...nz support ar100 index html AR300 Series routers have fixed interface configurations and do not have expansion capabilities Some AR400 Series routers and all AR700 Series routers have expansion bays t...

Страница 6: ...includes tools for managing your router The Document Set includes The Safety Booklet for your router which provides safety and statutory information The Quick Install Guide for your router which outli...

Страница 7: ...n co nz support ar100 index html Using Windows Terminal and Windows Hyperterminal You can use a PC running terminal emulation software as the manager console instead of a terminal There are many termi...

Страница 8: ...Connect using drop down list select Direct to Com n Where COM n is the COM port on the PC used to connect to the router Click OK 4 In the COMn Properties dialog box set Bits per second to 9600 Data b...

Страница 9: ...box click the Settings tab and set Function arrow and ctrl keys act as to Terminal keys Emulation to VT100 6 Click ASCII Setup to display the ASCII Setup dialog box Uncheck Echo typed characters local...

Страница 10: ...aded from flash If a patch is compressed it is uncompressed as it loads to DRAM This procedure ensures that the code runs at maximum speed DRAM is faster than EPROM and allows updates to be made to th...

Страница 11: ...art up procedure Force EPROM download Y The manager may press one of the keys listed in Table 1 on page 12 to override the default installation procedure 4 Check the INSTALL information to determine w...

Страница 12: ...p sequence keystrokes Pressing key Forces the router to no key pressed After a few seconds the router start up process continues Y Load the release without any patches from EPROM onto the RAM and run...

Страница 13: ...presence no memory present SIMM 0 The presence detect bits for SIMM position 0 indicated that there was no SIMM stick present This is fatal for this position No error is flagged if this pattern occur...

Страница 14: ...AIL message is displayed Contact your authorised Allied Telesyn distributor or reseller INFO Initial download succeeded The start up tests and download are complete and the router software is about to...

Страница 15: ...ck on a bookmark thumbnail or hypertext link to jump to a specific section or topic Use the Search command to search for keywords or phrases For more information about using the Adobe Acrobat Reader s...

Страница 16: ...ther directories Select Read only to prevent files being written to the PC To use the PC to archive router scripts created using the router s CREATE CONFIG command select Read Write Make any required...

Страница 17: ...igure 2 on page 17 The DRAM and FLASH fields show the amounts of DRAM and flash memory respectively Figure 2 Example output from the SHOW SYSTEM command Router System Status Time 17 10 06 Date 25 Sep...

Страница 18: ...AC slot which can accommodate any of the following MACs AT AR010 EMAC Encryption MAC AT AR011 ECMAC Compression Encryption MAC AT AR011 V2 ECMAC Compression Encryption MAC AT AR012 CMAC Compression MA...

Страница 19: ...w LED Functions AT AR300L S AT AR300 S AT AR310 S Figure 3 on page 19 Table 4 on page 20 AT AR320 AT AR330 Figure 4 on page 20 Table 5 on page 21 AT AR350 Figure 5 on page 21 Table 6 on page 22 AT AR3...

Страница 20: ...s and INFO 3 and INFO 4 signals are present on the link This means that the ISDN interface is correctly connected to a working NT device System red This LED is not normally lit It is used to signal va...

Страница 21: ...ace and DCD or its analog I for X 21 is active This usually indicates that the NTU or DSU CSU is connected to a correctly provisioned data circuit System red This LED is not normally lit It is used to...

Страница 22: ...NTU or DSU CSU is connected to a correctly provisioned data circuit System red This LED is not normally lit It is used to signal various system conditions e g when the processor executes the reboot s...

Страница 23: ...re present on the link This means that the ISDN interface is correctly connected to a working NT device System red This LED is not normally lit It is used to signal various system conditions e g when...

Страница 24: ...d state i e it is fully operational at layer 1 System red This LED is not normally lit It is used to signal various system conditions e g when the processor executes the reboot sequence Generally it s...

Страница 25: ...Function LAN Link Lit when the Ethernet interface is connected to a device e g a hub which is generating link pulses This LED is normally lit LAN Txd Lit when data is being transmitted over the Ether...

Страница 26: ...1 2 3 4 Function Any Any Any On Diagnostics Off Off Off Off Normal boot default On Off Off Off Reserved Off On Off Off Remote configuration On On Off Off Reserved Off Off On Off Factory test mode On O...

Страница 27: ...components on the AT AR300L S AT AR300 S and AT AR310 S base CPU cards Table 11 Functions of the jumpers on the AT AR300L S AT AR300 S and AT AR310 S base CPU cards Jumper Function Factory Default J1...

Страница 28: ...30CPU LED LED LED LED LED LED LED LED LED LED ETHERNET 0 RJ45 MDX PC HUB ASYNCHRONOUS PORTS 0 1 CONFIG S N REV WARNING LITHIUM BATTERY DO NOT DISPOSE IN FIRE Run Power System LAN WAN Active Rxd Txd Da...

Страница 29: ...card 350CPU LED LED LED LED LED LED LED LED LED LED ETHERNET 0 RJ45 MDX PC HUB ASYNCHRONOUS PORTS 0 1 CONFIG S N REV WARNING LITHIUM BATTERY DO NOT DISPOSE IN FIRE Run Power System LAN WAN Active Rxd...

Страница 30: ...ion Not installed no termination J2 BRI Rx termination Not installed no termination 370SCPU LED LED LED LED LED LED LED LED LED LED ETHERNET 0 RJ45 MDX PC HUB ASYNCHRONOUS PORTS 0 1 CONFIG WARNING LIT...

Страница 31: ...t J1 Selects NT mode installed or TE mode not installed Not installed TE mode 370UCPU LED LED LED LED LED LED LED LED LED LED ETHERNET 0 RJ45 MDX PC HUB ASYNCHRONOUS PORTS 0 1 CONFIG WARNING LITHIUM B...

Страница 32: ...pers on the AT AR390 and AT AR395 base CPU cards Jumper Function Factory Default J1 Selects NT mode installed or TE mode not installed Not installed TE mode J2 PRI Tx Termination 120 or 75 75 J3 PRI R...

Страница 33: ...eed varies from model to model Table 15 on page 33 All standard modem control lines are provided By default the asynchronous ports operate at 9600 bps 8 data bits 1 stop bit no parity and hardware flo...

Страница 34: ...re are no user selectable jumpers or DIP switches on AR400 Series routers AR410 Router The AT AR410 router consists of a base CPU card enclosure and power supply The base CPU card supports Four 10 100...

Страница 35: ...PIC installed are shown in Figure 15 on page 35 Figure 15 Front and rear panels of the AT AR410 Series router LEDs and what they mean Functions of the AR410 s LEDs are shown in Table 16 on page 36 Ad...

Страница 36: ...wer Green The router is receiving power and the power switch is in the ON position System Amber The Router is malfunctioning Off Normal operation Enabled PIC Bay 0 Green A PIC card is correctly instal...

Страница 37: ...00 Series Routers All AR700 Series routers include PIC bays PIC bays add expansion flexibility by allowing the installation of PIC cards which are available with ISDN PRI E1 T1 BRI S T or BRI U Ethern...

Страница 38: ...ay AMPLIMITE connector AT AR024 ASYN4 PIC four Asynchronous ports with R J45 connectors AT AR026 4ETH PIC four 10BASE T 100BASE TX ports with RJ 45 connectors In addition the AT AR720 router has a ded...

Страница 39: ...l various system conditions e g when the processor executes the reboot sequence Generally it signals a possible fault condition but it is lit during a power up or operator initiated reboot and remains...

Страница 40: ...ts 1 stop bit No parity Hardware flow control Port 0 can optionally be used for diagnostics or can automatically output the router start up messages by altering the internal DIP switch settings descri...

Страница 41: ...the Port Interface Card Quick Install Guide and Port Interface Card Hardware Reference Figure 17 Front and rear panels of the AR720 Series router Asynchronous ports Power switch AC Power inlet Mac eng...

Страница 42: ...indicate the state of the main router unit Power PWR Lit when power is supplied and the router is switched on Run RUN Lit when the internal processor is executing code If the processor stops for any...

Страница 43: ...port AT AR021 S BRI S T PIC one Basic Rate ISDN S T port AT AR021 U BRI U PIC one Basic Rate ISDN U port AT AR022 ETH PIC one Ethernet LAN AUI 10BASE T port AT AR023 SYN PIC one Synchronous port with...

Страница 44: ...G REMOVING PIC PIC 0 PIC 1 Hot Swap Swap AC Power 100 240 VAC 50 60 Hz 1 0 A RPS Power 3 1 2 0 Asynchronous ports Power switch AC Power inlet Base LEDSs and MAC engine LEDs NSM Bay with AT AR040 4 PIC...

Страница 45: ...are is malfunctioning Flashes to indicate fan PSU and RPS faults 1 Flash A switch fan has failed 2 Flashes If an RPS is connected and RPS monitoring is enabled an RPS fan has failed 3 Flashes If an RP...

Страница 46: ...DC power supply options Figure 19 on page 46 shows the location of the main components on the AT AR740 base unit There are no user selectable jumpers or DIP switches Figure 19 Location of main compon...

Страница 47: ...Pin outs for the DB25 RPS connector and cable specifications for RPS supply cables can be found in Redundant Power Supply RPS on page 45 Software Release 2 0 or higher includes monitoring functions f...

Страница 48: ...onous RS 232 ports AT AR740s have a Network Service Module NSM bay and two Port Interface Card PIC bays The NSM bay is PCI based to provide support for a number of higher density or higher performance...

Страница 49: ...in the NSM bay are shown in Figure 21 on page 49 Figure 21 Front and rear panels of the AT AR745 Series router LEDs and what they mean Functions of the AR745 s LEDs are shown in Table 22 on page 50 Ad...

Страница 50: ...n the switch or management software is malfunctioning Flashes to indicate fan PSU and RPS faults 1 Flash A switch fan has failed 2 Flashes If an RPS is connected and RPS monitoring is enabled an RPS f...

Страница 51: ...failures in the RPS connection power supply or fan Multiple faults are indicated by cycling through each error code The Main System Main features of the AT AR745 base CPU card are 80 MHz RISC processo...

Страница 52: ...universal AC model and a 48V DC model The AC model includes an inlet for the AT RPS 745 Redundant Power Supply The AT RPS 745 can be purchased separately and each unit supports up to two AT AR745 rou...

Страница 53: ...nect an AT AR745 80 to a DC power supply can be found in the AR700 Series Router Quick Install Guide You should read these instructions and your router s Safety Information before attempting to connec...

Страница 54: ...de is packed with each AT RPS 740 or can be downloaded from www alliedtelesyn co nz documentation documentation html Figure 24 on page 55 shows the AT RPS 740 front and rear panels Table 23 DB25 RPS p...

Страница 55: ...straight through configuration Pin outs for the connectors are listed in Table 24 on page 56 Figure 25 DB25 male pinout on the AT RPS 740 Front panel Rear panel AC power supply switches AC power supp...

Страница 56: ...range 5 to 95 non condensing Regulatory Standards EMC CISPR22 class A FCC class A and VCCI class I Immunity testing to EN50082 levels 2 ESD 3 susceptibility 4 fast transients 5 power surge and 6 RF i...

Страница 57: ...hed OFF Mains power to the RPS has failed An RPS fan has failed Off Normal operation Main PSU Fault Amber The corresponding router is switched OFF or its PSU has failed Mains power to the router has f...

Страница 58: ...C See Restricted Procedures on page 93 for more information on the MAC installation procedure How MACs work MACs provide AR routers with high performance hardware based encryption and or compression s...

Страница 59: ...inks to use compression concurrently enabling MACs to provide compression for complicated network architectures Figure 27 on page 59 shows typical compression ratios achieved by a MAC for a representa...

Страница 60: ...d in the dedicated PAC slot on AT AR725 AT AR740 and AT AR745 routers Where a MAC and PAC are installed in the same router only the PAC will function PACs should only be installed by authorised servic...

Страница 61: ...Support for up to 127 compression channels Compression and decompression operations are performed by a 32 bit data compression coprocessor specifically designed for high performance Lempel Ziv compre...

Страница 62: ...compression providing a dual mode that allows combined compression and encryption operations So that the compression phase will have the best opportunity at finding non random data compression occurs...

Страница 63: ...isplay system information Figure 30 on page 64 The second part of the display shows the types and sizes of memory installed in the router If flash memory is installed then there should be an entry giv...

Страница 64: ...ion 1 8 1 00 08 Sep 1999 SysContact David Johns ext 8331 SysLocation Laboratory First Floor Head Office Building SysName LAB SysUpTime 250074 00 41 40 Software Version 1 8 1 00 08 Sep 1999 Release Ver...

Страница 65: ...B9 female connectors DB9 male connectors or RJ 45 connectors depending on the model or PIC Table 26 on page 65 Pinouts match those used for most building wiring schemes Table 27 on page 66 Table 28 on...

Страница 66: ...connectors on asynchronous interfaces pins are numbered from left to right Pin Function Signal Direction 1 DCD Input to router 2 RXD Input to router 3 TXD Output from router 4 DTR Output from router...

Страница 67: ...nstruct your own cable Transition cables do more than simply change the physical connector The router hardware reads the cable type from the AMPLIMITE plug and enables or disables the internal driver...

Страница 68: ...uter may be used in either situation The LAN ports can easily be tested using a simple external loopback plug See Cables And Loopback Plugs on page 73 for details of how to construct a loopback plug 1...

Страница 69: ...uter series in this Reference for details of the locations and names of jumpers The Integrated Services Digital Network ISDN chapter of your router s Software Reference also has additional information...

Страница 70: ...ate normally during specific tests any interfaces being tested are dedicated to the Test Facility For more information on the Test Facility s operation see the Test Facility chapter of your router s S...

Страница 71: ...SHOW TEST which produces a display like that shown in Figure 33 on page 71 Figure 33 Example output from the SHOW TEST command Board ID Bay Board Name Rev Serial number Base 62 AR720 M1 0 6845181 IC...

Страница 72: ...s on page 73 for details of how to make a loopback plug To start a test of an Ethernet interface use the command ENABLE TEST INT ETHn where n is the Ethernet interface number This will run the test fo...

Страница 73: ...ous port of another router or a host without using an intermediate modem or NTU Network Terminating Unit Therefore the DCE cable must only be connected to a router port that is set to generate the clo...

Страница 74: ...mm from the rear of the backshell of the AMPLIMITE connector Contact your authorised Allied Telesyn distributor or reseller for a list of approved ferrites Table 34 on page 74 lists the wiring diagram...

Страница 75: ...ctor shells to be metallised and fully shielded 360 4 Standard cable length is 2 05m 0 05m 5 Ferrite to be fitted to cable no more than 25mm from rear of D50 SCSI 2 backshell 6 Cable version 4 0 1 Shi...

Страница 76: ...3 28 etc 3 D25 connector shells to be metallised and fully shielded 360 4 Standard cable length is 2 05m 0 05m 5 Ferrite must be fitted to cable no more than 25mm from rear of D50 SCSI 2 backshell 6...

Страница 77: ...n 26 Pin 50 Pin 1 Pin 25 D50 SCSI 2 Male Pin View Pin B Pin D Pin A Pin C M34 Male Pin View Ferrite Cable A B B B Network A 180R 180R 105R 200R 200R Network B 300R 300R Pin NN Pin LL Pin MM Pin KK Not...

Страница 78: ...ND 46 FSELB 47 FGND 21 FSELC 23 Pin 26 Pin 50 Pin 1 Pin 25 D50 SCSI 2 Male Pin View Pin NN Pin LL Pin MM Pin KK M34 Female Pin View Ferrite Cable Pin B Pin D Pin A Pin C Notes 1 Output from router Inp...

Страница 79: ...must be 1 26 2 27 3 28 etc 3 D15 connector shells to be metallised and fully shielded 360 4 Standard cable length is 2 05m 0 05m 5 Ferrite must be fitted to cable no more than 25mm from rear of D50 S...

Страница 80: ...8 etc 3 D15 connector shells to be metallised and fully shielded 360 4 Standard cable length is 2 05m 0 05m 5 Ferrite must be fitted to cable no more than 25mm from rear of D50 SCSI 2 backshell 6 Cabl...

Страница 81: ...face PRI Currently there is no accepted standard for the connector at the network termination end so only the cable s router end is shown Consult you ISDN service provider for more information Figure...

Страница 82: ...er Notes 1 Output from switch or router Input to switch or router 2 Use Grade 5 twisted pair cable with pairs 1 and 2 and 4 and 5 3 Cable version 1 0 1 2 3 4 5 6 7 8 RX RX Not connected TX TX Not conn...

Страница 83: ...socket and pins on the free ends The pins are inserted into the appropriate positions in the DB25 shell Figure 43 Pin wiring diagram for a standard RJ 45 terminal cable Table 35 Terminal and modem cab...

Страница 84: ...male to router DTE DB9 Female to PC terminal DTE 4 6 3 2 1 5 8 7 9 1 2 3 4 6 5 7 8 9 Notes 1 Output from router Input to router 2 Cable version 1 0 DB9FDB9F Not Connected Not Connected DCD RXD TXD DTR...

Страница 85: ...and therefore have a DTE perspective The internal DTE pin roles are listed in Table 36 on page 85 Table 36 Internal DTE pin roles Pin Role 2 TXD 3 RXD 4 CD 5 GND 6 DTR 7 CTS 8 RTS Notes 1 Output from...

Страница 86: ...Output from router Input to router 2 Cable version 1 0 DB9MDB9F 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 9 Cable Pin 9 Pin 6 Pin 5 Pin 1 DB9 Male Pin View Pin 9 Pin 6 Pin 5 Pin 1 DB9 Female Pin View DB9 Female...

Страница 87: ...XD 1 DCD 5 GND 4 DTR 8 CTS 7 RTS 9 6 Not connected 1 2 3 4 5 6 7 8 9 Cable Pin 9 Pin 6 Pin 5 Pin 1 DB9 Male Pin View Pin 6 Pin 9 Pin 1 Pin 5 DB9 Male Pin View DB9 Male to router DCE DB9 Male to modem...

Страница 88: ...le transceiver An AUI cable is required if this method is used Transceivers have a switch or a jumper to enable or disable SQE Signal Quality Error also known as heartbeat AR routers do not require SQ...

Страница 89: ...terfaces with control signals these are also looped back The data received on the interface is compared with the data transmitted to determine whether or not the interface is functioning correctly In...

Страница 90: ...igure 55 on page 91 Basic Rate ISDN interface Figure 57 on page 93 Most BRI interfaces are tested without a loopback plug See Loopback Plugs for BRI Interfaces on page 92 for instructions on how to de...

Страница 91: ...5 6 7 8 9 DB9FLOOP Pin 9 Pin 6 Pin 5 Pin 1 DB9 Female Pin View 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 C1 100nF ceramic capacitor C2 100nF ceramic capacitor R1 1K resistor C1 C2 LED R1 AUI Loopback Plug...

Страница 92: ...er the command SHOW BRI TEST Figure 56 1 on page 92 shows an example of the output screen from the SHOW BRI TEST command with the transceiver type listed in the first line Figure 56 1 Example output f...

Страница 93: ...the Network Service Module Hardware Reference The PIC and NSM Quick Install Guides and Hardware References are included on the Documentation and Tools CD ROM bundled with all AR400 Series and AR700 S...

Страница 94: ...the router or hardware option If you are unsure what the correct procedures are contact your authorised Allied Telesyn distributor or reseller To install a MAC 1 If connected disconnect the router s...

Страница 95: ...d one for the MAC Both the serial number and the part name should be displayed If there is no entry for the MAC then the router s boot process has not correctly detected the MAC s presence The most li...

Страница 96: ...ption CentreCOM AR720 version 2 2 2 00 18 May 2001 SysContact SysLocation SysName SysDistName SysUpTime 1482 00 00 14 Software Version 2 2 2 00 18 May 2001 Release Version 2 2 2 00 18 May 2001 Release...

Страница 97: ...ility for a MAC use the command ENABLE TEST INTERFACE MAC The test will run for 4 minutes To view the results of the test at any time use the command SHOW TEST Figure 60 on page 97 shows a typical out...

Страница 98: ...rrect procedures are contact your authorised Allied Telesyn distributor or reseller To install a PAC 1 If connected disconnect the router s RPS power supply 2 Turn off the router and remove the mains...

Страница 99: ...hows the PAC slot on an AR740 base board 7 Replace the router s lid and the power cord Secure the router s lid If you disconnected an RPS supply reconnect it now 8 If you disconnected interface cables...

Страница 100: ...or the PAC then the router s boot process has not correctly detected the PAC s presence The most likely cause is that the PAC is not correctly plugged into the slot on the router s base board Repeat t...

Страница 101: ...5 PIC 152 1 AT AR026 00 PIC 10 100 Eth P1 0 40846780 PAC 153 AR061 ECPAC P3 16 6845158 Memory DRAM 16384 kB FLASH 4096 kB SysDescription CentreCOM AR740 version 2 2 2 00 18 May 2001 SysContact SysLoca...

Страница 102: ...ify a PAC s operation See the Test Facility chapter of your router s Software Reference for more information about the Test Facility To run the Test Facility for a PAC use the command ENABLE TEST INTE...

Страница 103: ...0 40239075 PIC 152 1 AT AR026 00 PIC 10 100 Eth P1 0 40846780 PAC 153 AR061 ECPAC P3 16 6845158 Memory DRAM 16384 kB FLASH 4096 kB SysDescription CentreCOM AR740 version 2 2 2 00 18 May 2001 SysConta...

Страница 104: ...this procedure Failure to follow the correct antistatic procedures may result in damage to the router or the flash SIMM stick If you have any queries about antistatic procedures contact your authorise...

Страница 105: ...butor or reseller that they need to be changed Jumpers should only be replaced by authorised service personnel Unauthorised opening of the router lid may cause danger of injury from electric shock dam...

Страница 106: ...unning Diagnostics will not perform checks on AT AR026 PICs To enable diagnostics mode 1 Connect a terminal to the console port Connect a terminal to the console port port 0 on the router s rear panel...

Страница 107: ...needed to operate diagnostics and interpret the results Diagnostics only require the base CPU board to be installed in the system To restore the router to normal operation perform a restart by switchi...

Страница 108: ...rostatic damage This can be particularly acute in the dry atmosphere normally associated with computer rooms and typical offices Before commencing work ensure that you have used an approved antistatic...

Страница 109: ...ng a MAC on page 94 for instructions 9 Replace the router lid and the power cord Replace the router lid and secure it with the four posidrive screws Connect the power cord and switch the router ON 10...

Страница 110: ...correctly using the relevant location diagram as a guide Check for bent pins These should be carefully straightened Replace the boot EPROMs and complete the remaining steps If the router still fails...

Страница 111: ...5 90 00 Fax 49 30 435 706 50 GERMANY SOUTH Tel 49 8161 99 060 Fax 49 8161 99 0622 EAST EUROPE AUSTRIA Tel 43 1 8762441 Fax 43 1 8762572 ITALY Tel 39 02 416047 Fax 39 02 419282 SPAIN Tel 34 91 5591055...

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