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3-2

CRBRIM-W/E

CHAPTER 3: Preparing for Installation

3.2

System Operation Prerequisites

The CRBRIM-W/E is designed to run system code from Flash memory single in-
line memory modules (SIMMs). With the proper system code image, the router
also can be run from dynamic random-access memory (DRAM); however, this
operation requires a 4-MB memory upgrade (installation of a 4 MB x 72 pin
DRAM SIMM). Further, operating system code from DRAM can result in a 25-
percent decrease in system performance.

Operating the system code from Flash is the default and is recommended for
optimum performance of the router.

3.3

Distance Limitations

When setting up your router, consider distance limitations and potential
electromagnetic interference (EMI) as defined by the Electronic Industries
Association (EIA). Following are the distance limitation specifications for serial
interfaces.

3.3.1 Serial Connections

As with all signaling systems, RS-232 signals travel a limited distance at any
given bit rate; generally, the slower the data rate, the greater the distance.
Table 3-1 shows the standard relationship between baud rate and maximum
distance.

For safety, periodically check the resistance value of the antistatic
strap, which should be within the range of 1 and 10 M

Ω

.

!

CAUTION

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Содержание CRBRIM-W/E

Страница 1: ...CRBRIM W E USER S GUIDE ...

Страница 2: ... LOST PROFITS ARISING OUT OF OR RELATED TO THIS MANUAL OR THE INFORMATION CONTAINED IN IT EVEN IF CABLETRON SYSTEMS HAS BEEN ADVISED OF KNOWN OR SHOULD HAVE KNOWN THE POSSIBILITY OF SUCH DAMAGES Copyright October 1994 by Cabletron Systems Inc P O Box 5005 Rochester NH 03866 5005 All Rights Reserved Printed in the United States of America Part Number 9031246 October 1994 SPECTRUM and LANVIEW are re...

Страница 3: ...the operator s manual may cause harmful interference to radio communications Operation of this equipment in a residential area is likely to cause interference in which case the user will be required to correct the interference at his own expense WARNING Changes or modifications made to this device which are not expressly approved by the party responsible for compliance could void the user s author...

Страница 4: ...RANTY AND DISCLAIMER OF LIABILITY IF YOU DO NOT AGREE TO THE TERMS OF THIS AGREEMENT PROMPTLY RETURN THE UNUSED PRODUCT TO THE PLACE OF PURCHASE FOR A FULL REFUND CABLETRON SOFTWARE PROGRAM LICENSE 1 LICENSE You have the right to use only the one 1 copy of the Program provided in this package subject to the terms and conditions of this License Agreement You may not copy reproduce or transmit any p...

Страница 5: ...N IF CABLETRON HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES BECAUSE SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES OR ON THE DURATION OR LIMITATION OF IMPLIED WARRANTEES IN SOME INSTANCES THE ABOVE LIMITATIONS AND EXCLUSIONS MAY NOT APPLY TO YOU UNITED STATES GOVERNMENT RESTRICTED RIGHTS The enclosed product a was developed solely a...

Страница 6: ...1 System Specifications 2 2 2 2 Memory Configurations 2 3 Chapter 3 Preparing for Installation 3 1 Preventing Electrostatic Discharge Damage 3 1 3 2 System Operation Prerequisites 3 2 3 3 Distance Limitations 3 2 3 3 1 Serial Connections 3 2 3 4 Interference Considerations 3 4 3 5 Console Considerations 3 5 3 5 1 Console Port Connections 3 5 3 6 Network Connection Considerations 3 6 3 6 1 Ethernet...

Страница 7: ...twork Interfaces and Cables 5 2 5 1 2 Reading LED Indicators 5 3 Chapter 6 Maintenance 6 1 Installing Primary Memory DRAM SIMMs 6 1 6 1 1 Tools and Equipment Required 6 2 6 1 2 Primary Memory Configurations 6 2 6 1 3 Approved DRAM SIMMs 6 3 6 1 4 DRAM SIMM Installation 6 3 6 2 Replacing System Code SIMMs 6 5 6 2 1 Tools and Equipment Required 6 5 6 2 2 System Code SIMM Replacement 6 5 6 3 Recoveri...

Страница 8: ...rtual Configuration Register Settings B 1 Changing Configuration Register Settings B 3 Virtual Configuration Register Bit Meanings B 4 Enabling Booting from Flash B 8 Copying to Flash B 8 Appendix C Bootstrap Program Entering the Bootstrap Program C 1 Available Bootstrap Commands C 2 Running the Diagnostics C 5 ...

Страница 9: ...describes features explains installation procedures and provides specifications for the Cabletron Systems CRBRIM W E The CRBRIM W E is designed to reside in and provide additional connectivity functionality to various Cabletron MIMs and hubs e g the EMM E6 ESXMIM NBR 420 620 or MicroMMAC Figure 1 1 CRBRIM W E TP RESET S1 S0 CONSOLE S0 LAN PWR SYS S1 ...

Страница 10: ... Hardware Installation Guide This chapter also provides a list of related manuals and GETTING HELP information Chapter 2 Product Overview contains an overview of the router feature set and physical specifications Chapter 3 Preparing for Installation includes safety recommendations site requirements an installation checklist console and auxiliary port cable connection considerations network connect...

Страница 11: ...d command options 1 4 Document Conventions This publication uses the following conventions to convey instructions and information Command descriptions use these conventions Commands and keywords are in boldface font Variables for which you supply values are in italic font Elements in square brackets are optional Alternative but required keywords are grouped in braces and are separated by a vertica...

Страница 12: ... can save time by performing the action described in the paragraph Means reader be careful You are capable of doing something that might result in equipment damage or loss of data CAUTION Means danger You are in a situation that could cause bodily injury Before you work on any equipment be aware of the hazards involved with electrical circuitry and standard practices for preventing accidents WARNI...

Страница 13: ...Guide Cabletron Systems MicroMMAC User s Guide Cabletron Systems NBR 620 420 220 User s Guide Cabletron Systems NBR 620 420 220 Local Management Guide Cabletron System s CRM DOC Set A compilation of Cisco Systems Router Products Configuration and Reference Guides 1 6 Getting Help If you need additional support related to the Cabletron Systems CRBRIM W E or if you have any questions or comments rel...

Страница 14: ...f two WAN ports and one internal Ethernet port The two high density WAN ports support V 35 X 21 RS449 RS422 RS530 and RS232 interfaces The CRBRIM W E uses Cisco Systems routing software and is capable of supporting Frame Relay X 25 DDN X 25 SMDS T1 E1 and DDS circuit connections The CRBRIM W E uses a FLASH EEPROM and is shipped with system code operating from Flash memory by default For more infor...

Страница 15: ...ial 2501 Ethernet interface internal IEEE 802 3 CRBRIM to EPIM 3PS Synchronous serial interfaces RS 232 RS 449 V 35 X 21 NRZ NRZI1 and DTE DCE2 mode EIA 530 NRZ NRZI and DTE mode All serial interfaces use the DB 60 connector at the chassis Console ports Asynchronous serial RJ 45 Operating environment 32 through 104 F 0 through 40 C Nonoperating temperature 40 through 185 F 40 through 85 C Operatin...

Страница 16: ...ystem software image Boot ROM memory Stores a subset of the operating system software image that is called the system bootstrap image or the bootstrap program or ROM monitor The system bootstrap image allows you to boot the router when Flash memory does not contain a valid system image The boot ROM prompt follows Router boot The bootstrap program ROM monitor prompt is the greater than sign which d...

Страница 17: ... is used by the net work interface ports to store packets and is called shared or packet memory When a DRAM SIMM is installed in the DRAM SIMM socket all of the DRAM memory on this SIMM becomes primary memory for the CPU and the 2 MB of DRAM that is permanent on the board becomes shared memory Table 2 2 Memory Configurations Memory Type Memory Capacity Primary memory DRAM SIMMs 1 MB expandable to ...

Страница 18: ...ollo Domain PUP and CHAOSnet The DESKTOP software set supports IP Novell IPX DECnet IV AppleTalk Phase 1 and 2 and bridging The IP software set supports IP and bridging protocols All CRBRIM W E models are shipped with Frame Relay and X 25 software that offers efficient remote site access to packet switched networks CRBRIM W E models configured for either DESKTOP or ENTERPRISE Routing Software are ...

Страница 19: ...ctrostatic discharge ESD damages equipment and impairs electrical circuitry It occurs when electronic components are improperly handled and causes complete or intermittent failures Follow ESD prevention procedures when handling electronic components Ensure that the chassis is electrically connected to earth ground Wear an ESD wrist strap ensuring that it makes good skin contact Connect the clip to...

Страница 20: ...s the default and is recommended for optimum performance of the router 3 3 Distance Limitations When setting up your router consider distance limitations and potential electromagnetic interference EMI as defined by the Electronic Industries Association EIA Following are the distance limitation specifications for serial interfaces 3 3 1 Serial Connections As with all signaling systems RS 232 signal...

Страница 21: ... Table 3 1 IEEE Standard RS 232 Transmission Speed Versus Distance Baud Rate Distance Feet Distance Meters 2400 200 60 4800 100 30 9600 50 15 19200 25 7 6 38400 12 3 7 RS 232 is often used in violation of these specifications If you understand the electrical problems that can arise and can compensate for them you might be able to get good results at distances greater than those shown in Table 3 1 ...

Страница 22: ...nsmitters can destroy the RS 232 drivers and receivers in the server If you use twisted pair cables with a good distribution of grounding conductors in your plant cabling emitted radio interference is unlikely If you exceed the maximum distances ground the conductor for each data signal however this practice is not recommended Table 3 2 IEEE Standard RS 449 Transmission Speed Versus Distance Baud ...

Страница 23: ...d remedy strong electromagnetic interference consult experts in radio frequency interference RFI 3 5 Console Considerations Before connecting the console port read the following sections 3 5 1 Console Port Connections Each router system includes an RJ 45 console asynchronous serial port wired as a data communications equipment DCE device This port connects to a terminal using an RJ 45 to DB 25 ada...

Страница 24: ...r cable specifications For ordering information contact Cabletron Systems Technical Support 3 7 Inspecting the System Do not unpack the CRBRIM W E until you are prepared to install it If the final installation site will not be ready for some time keep the module in its shipping container to prevent accidental damage The CRBRIM W E package includes the following CRBRIM W E module EPIM 3PS module Co...

Страница 25: ...ng are the tools and parts required to install the CRBRIM W E ESD preventive wrist strap 2 faceplate screws 2 support post screws included in your BRIM package 1 Phillips screwdriver One interface cable for each interface you require In addition you might need the following external equipment Channel service unit digital service unit CSU DSU for the serial interfaces Modem for remote configuration...

Страница 26: ...nnector locations Table 4 1 EPIM 3PS BRIM Configuration Cabletron Module EPIM Slot BRIM Slot ESXMIM EPIM Slot BRIM Slot EMM E6 Top EPIM Slot 1 Top BRIM Slot E MicroMMAC EPIM 1 BRIM Slot on rear of chassis NBR 420 620 Port A 1st EPIM 3PS Port B 2nd EPIM 3PS Port E 1st BRIM Port F 2nd BRIM TIP On some devices the EPIM slot is located under the BRIM slot In these cases install the EPIM 3PS and connec...

Страница 27: ...n its side with the internal components facing up See Figure 4 1 5 Remove the BRIM coverplate screws and the coverplate 6 Remove BRIM standoff screws 7 Place your CRBRIM W E behind the MIM faceplate 8 Insert the connector pins of the CRBRIM W E into the motherboard connector on the MIM 9 Press down firmly on the back of the BRIM until the pins slide all the way into the connector holes 10 Reinstal...

Страница 28: ...e mounting screw shown in Figure 4 2 2 Remove the coverplate or the EPIM whichever applies 3 Slide the EPIM 3PS into place insure that the EPIM connectors are fully engaged with the MIM connectors 4 Reinstall the mounting screw RESET TP LAN PWR SYS RESET S1 S0 CONSOLE S1 S0 When removing an EPIM be sure to pull the module straight out to prevent damage to the connector NOTE ...

Страница 29: ... 3PS Figure 4 3 2 Plug the other end of the cable into the CRBRIM W E Figure 4 3 3 After returning the MIM to the MMAC returning power to your hub and reconnecting to the network the BRIM is now ready for operation EMM E6 ETHERNET STBY RCV XMT CLN D C B A CPU RESET SN E PI M 1 E PI M 2 C O M 1 C O M 2 F E LAN PWR SYS RESET S1 S0 CONSOLE S1 S0 To disconnect the ethernet cable from the EPIM 3PS care...

Страница 30: ...the CRBRIM W E to the modem or CSU DSU with the appropriate serial transition cable See Appendix A Be certain to connect the 60 pin serial port connector end of the cable to the CRBRIM W E 2 The console port on the faceplate of the CRBRIM W E uses an RJ45 type connector See Appendix A for specific RJ 45 to DB 25 cable specifications Be sure that your terminal is operating at 9600 baud 8 data bits ...

Страница 31: ...ule out the CRBRIM W E system as the problem source Whether or not you can locate the source of your problem contact a service representative for information on how to proceed in resolving the problem Before you call have the following information ready Serial number Software version level and hardware configuration System software configuration Brief description of the problem you are having Brie...

Страница 32: ...ce A network interface is recognized but it will not initialize check the interface cable connection System will not boot properly or constantly intermittently reboots suspect the processor or software System boots but console screen is frozen Check the external console connection Verify the console baud rate in the terminal documentation System powers on and boots with a particular interface disc...

Страница 33: ...COLOR DESCRIPTION SYS yellow LED ON indicates system is OK LED OFF indicates system failure PWR green LED ON indicates power is on LED OFF indicates power is OFF LAN yellow LED ON indicates LAN Ethernet is active LED OFF indicates no traffic on LAN S0 yellow LED ON indicates WAN S0 is active LED OFF indicates no trafffic on WAN S1 yellow LED ON indicates WAN S1 is active LED OFF indicates no traff...

Страница 34: ...5 4 CRBRIM W E CHAPTER 5 Troubleshooting the Hardware Configuration Figure 5 2 EPIM 3PS LED Connection LED ...

Страница 35: ...ner on the console screen Primary and shared memory are 1 MB each of the dynamic random access memory DRAM on the system board After booting up your system s primary memory is indicated in the system banner The following example shows a system with 1 MB 1024 KB of primary memory The system does not display shared memory System Bootstrap Version 2 1 SOFTWARE Copyright c 1986 1994 by cisco Systems 2...

Страница 36: ...DRAM the 4 MB upgrade kit includes one 4 MB x 72 pin DRAM SIMM and the 16 MB kit includes one 16 MB x 72 pin DRAM SIMM As primary memory is expanded to 4 or 16 MB SIMMs the 2 MB of permanent memory is allocated as shared memory The location of the DRAM SIMM on your CRBRIM WE is shown in Figure 6 1 Figure 6 1 DRAM SIMM Location on the CRBRIM W E DRAM SIMM Slot System FLASH SIMM Slot EPIM 3PS CRBRIM...

Страница 37: ...stems 2500 processor with 4096 Kbytes of main memory or 16384 kbytes for 16 MB upgrade 6 1 4 DRAM SIMM Installation Following is the procedure for installing DRAM SIMMs 1 Attach an ESD preventive wrist strap 2 Turn the BRIM so the DRAM SIMM socket is toward you 3 Remove the existing DRAM SIMM by pulling outward on the connectors to unlatch them Be careful not to break the holders on the SIMM conne...

Страница 38: ...end of the SIMM socket 5 Insert the new DRAM SIMM by sliding the edge with the metal fingers into the SIMM connector socket at a slight angle to the socket Gently rock the SIMM back into place until the latch on either side snaps into place Do not use excessive force or the connector could break 6 Connect the CRBRIM W E to a console terminal CRBRIM W E Faceplate SIMM Socket DRAM SIMM Polarization ...

Страница 39: ...r upgrading the system code Flash or PROM SIMMs 1 Attach an ESD preventive wrist strap 2 Turn the CRBRIM WE so that the system board is in the position shown in Figure 6 3 with the system code SIMM toward you 3 Locate the system code SIMMs on the CRBRIM W E See Figure 6 1 4 Remove the existing system code SIMM by pulling outward on the connectors to unlatch them The connector holds the SIMM tightl...

Страница 40: ...s into the SIMM connector socket at a slight angle to the system socket Gently rock the SIMM back into place until the latch on either side snaps into place Do not use excessive force or the connector could break CRBRIM W E Faceplate System SIMM Socket System FLASH SIMM Polarization Notch System SIMM Installed Some Flash SIMMs have the components mounted on the rear side therefore when inserting t...

Страница 41: ...oot from ROM Enter the privileged mode in the system bootstrap program Enter the show configuration command to display the enable password Change the configuration register value back to its original setting To recover a lost password follow this procedure 1 Attach an ASCII terminal to the BRIM console port see Chapter 3 Section 3 5 Console Port Connections 2 Configure the terminal to operate at 9...

Страница 42: ...RIM W E by entering the i command as follows i The CRBRIM W E will power cycle the configuration register will be set to 0x141 and the CRBRIM W E will boot the boot ROM system image and prompt you with the system configuration dialog as follows System Configuration Dialog 8 Enter no in response to the system configuration dialog prompts until the following system message is displayed Press RETURN ...

Страница 43: ...ation commands one per line Edit with DELETE CTRL W and CTRL U end with CTRL Z 13 Using the config reg Oxvalue command change the configuration register value back to its original value from step 3 or change it to a value of Ox102 which in the absence of a boot system command in the configuration file causes the router to boot from Flash memory 14 Exit configuration mode by entering Ctrl Z 15 Rebo...

Страница 44: ...page A 10 V 35 synchronous serial DTE Table A 7 page A 11 V 35 synchronous serial DCE Table A 8 page A 13 X 21 synchronous serial DTE Table A 9 page A 15 X 21 synchronous serial DCE Table A 10 page A 16 Due to the small pins on the DB 60 connector used for the serial cables manufacturing and soldering these cables yourself might be very difficult and is not recommended Use the cable assembly drawi...

Страница 45: ... for connection to modems and other external communications equipment Following are the pinouts for the console port and adapter see Table A 1 1 Any pin not referenced is not connected Table A 1 Console Port Pinouts RJ 45 to DB 25 Female Console Port DCE RJ 45 to DB 25 Adapter Pin1 Signal Input Output Pin Signal Pin 1 RxD Output 1 RxD 3 2 DTR Input 2 DTR 20 3 3 4 TxD Input 4 TxD 2 5 GND 5 GND 7 6 ...

Страница 46: ...the EIA 530 DCE and RS 232 RS 449 V 35 and X 21 DTE and DCE cables A 2 1 EIA 530 Figure A 1 shows the EIA 530 serial cable assembly and Table A 2 lists the pinouts Arrows indicate signal direction indicates DTE to DCE and indicates DCE to DTE Figure A 1 EIA 530 Cable Assembly H1972 60 pin connector 25 pin connector Connectors are not to scale J2 13 J2 25 J2 14 J2 1 J1 46 J1 45 J1 16 J1 15 J1 1 J1 ...

Страница 47: ... A DCD CF B DCD J1 28 J1 27 RxD TxD RxD TxD J2 3 J2 16 BB A RxD BB B RxD J1 24 J1 23 TxC RxC TxC RxC J2 15 J2 12 DB A TxC DB B TxC J1 9 J1 10 RTS CTS RTS CTS J2 4 J2 19 CA A RTS CA B RTS J1 26 J1 25 RxC TxCE RxC TxCE J2 17 J2 9 DD A RxC DD B RxC J1 1 J1 2 CTS RTS CTS RTS J2 5 J2 13 CB A CTS CB B CTS J1 44 J1 45 LL DCD Circuit_ GND J2 18 J2 7 LL Circuit_ GND J1 3 J1 4 DSR DTR DSR DTR J2 6 J2 22 CC ...

Страница 48: ... 232 Cable Assembly Table A 3 RS 232 DTE Cable Pinout DB 60 to DB 25 60 Pin1 Signal Note Direction 25 Pin Signal J1 50 J1 51 J1 52 MODE_0 GND MODE_DCE Shorting Group J1 46 Shield GND Single J2 1 Shield GND J1 41 Shield TxD RxD Twisted pair no 5 J2 2 Shield TxD J1 36 Shield RxD TxD Twisted pair no 9 J2 3 Shield RxD J1 42 Shield RTS CTS Twisted pair no 4 J2 4 Shield RTS H1972 60 pin connector 25 pin...

Страница 49: ...eld Circuit GND J1 33 Shield DCD LL Twisted pair no 12 J2 8 Shield DCD J1 37 Shield TxC NIL Twisted pair no 8 J2 15 Shield TxC J1 38 Shield RxC TxCE Twisted pair no 7 J2 17 Shield RxC J1 44 Shield LL DCD Twisted pair no 2 J2 18 Shield LTST J1 43 Shield DTR DSR Twisted pair no 3 J2 20 Shield DTR J1 39 Shield TxCE TxC Twisted pair no 6 J2 24 Shield TxCE Table A 3 RS 232 DTE Cable Pinout DB 60 to DB ...

Страница 50: ...r no 5 J2 3 Shield RxD J1 35 Shield CTS RTS Twisted pair no 10 J2 4 Shield RTS J1 42 Shield RTS CTS Twisted pair no 4 J2 5 Shield CTS J1 43 Shield DTR DSR Twisted pair no 3 J2 6 Shield DSR J1 45 Shield Circuit GND Twisted pair no 1 J2 7 Shield Circuit GND J1 44 Shield LL DCD Twisted pair no 2 J2 8 Shield DCD J1 39 Shield TxCE TxC Twisted pair no 7 J2 15 Shield TxC J1 40 Shield NIL RxC Twisted pair...

Страница 51: ...able A 5 RS 449 DTE Cable Pinout DB 60 to DB 37 60 Pin1 Signal Note Direction 37 Pin Signal J1 49 J1 48 MODE_1 GND Shorting Group J1 51 J1 52 GND MODE_DCE Shorting Group J1 46 Shield_GND Single _ J2 1 Shield GND J1 11 J1 12 TxD RxD TxD RxD Twisted pair no 6 J2 4 J2 22 SD SD J1 24 J1 23 TxC RxC TxC RxC Twisted pair no 9 J2 5 J2 23 ST ST H1973 60 pin connector J1 37 pin connector J2 Connectors are n...

Страница 52: ...TS CTS RTS Twisted pair no 1 J2 9 J2 27 CS CS J1 44 J1 45 LL DCD Circuit_GND Twisted pair no 12 _ J2 10 J2 37 LL SC J1 3 J1 4 DSR DTR DSR DTR Twisted pair no 2 J2 11 J2 29 DM DM J1 7 J1 8 DTR DSR DTR DSR Twisted pair no 4 J2 12 J2 30 TR TR J1 5 J1 6 DCD DCD DCD DCD Twisted pair no 3 J2 13 J2 31 RR RR J1 13 J1 14 TxCE TxC TxCE TxC Twisted pair no 7 J2 17 J2 35 TT TT J1 15 J1 16 Circuit_GND Circuit_...

Страница 53: ...D Twisted pair no 6 J2 6 J2 24 RD RD J1 1 J1 2 CTS RTS CTS RTS Twisted pair no 1 J2 7 J2 25 RS RS J1 24 J1 23 TxC RxC TxC RxC Twisted pair no 9 J2 8 J2 26 RT RT J1 9 J1 10 RTS CTS RTS CTS Twisted pair no 5 J2 9 J2 27 CS CS J1 29 J1 30 NIL LL Circuit_GND Twisted pair no 12 J2 10 J2 37 LL SC J1 7 J1 8 DTR DSR DTR DSR Twisted pair no 4 J2 11 J2 29 DM DM J1 3 J1 4 DSR DTR DSR DTR Twisted pair no 2 J2 ...

Страница 54: ... A 4 V 35 Cable Assembly Table A 7 V 35 DTE Cable Pinout DB 60 to Winchester Type 34 Pin 60 Pin1 Signal Note Direction 34 Pin Signal J1 49 J1 48 MODE_1 GND Shorting Group J1 50 J1 51 J1 52 MODE_0 GND MODE_DCE Shorting Group J1 53 J1 54 J1 55 J1 56 TxC NIL RxC_TxCE RxD TxD GND Shorting Group J1 46 Shield_GND Single J2 A Frame GND H1975 J1 46 J1 45 J1 16 J1 15 J1 1 J1 30 J1 31 J1 60 Connectors are n...

Страница 55: ...o 6 J2 F Shield RLSD J1 43 Shield DTR DSR Twisted pair no 10 J2 H Shield DTR J1 44 Shield LL DCD Twisted pair no 11 J2 K Shield LT J1 18 J1 17 TxD RxD TxD RxD Twisted pair no 1 J2 P J2 S SD SD J1 28 J1 27 RxD TxD RxD TxD Twisted pair no 5 J2 R J2 T RD RD J1 20 J1 19 TxCE TxC TxCE TxC Twisted pair no 2 J2 U J2 W SCTE SCTE J1 26 J1 25 RxC TxCE RxC TxCE Twisted pair no 4 J2 V J2 X SCR SCR J1 24 J1 23...

Страница 56: ...1 45 Shield Circuit_GND Twisted pair no 12 J2 B Shield Circuit GND J1 35 Shield CTS RTS Twisted pair no 8 J2 C Shield RTS J1 42 Shield RTS CTS Twisted pair no 9 J2 D Shield CTS J1 43 Shield DTR DSR Twisted pair no 10 J2 E Shield DSR J1 44 Shield LL DCD Twisted pair no 11 J2 F Shield RLSD J1 34 Shield DSR DTR Twisted pair no 7 J2 H Shield DTR J1 33 Shield DCD LL Twisted pair no 6 J2 K Shield LT J1 ...

Страница 57: ...5 X 21 Cable Assembly 1 Any pin not referenced is not connected J1 22 J1 21 NIL RxC NIL RxC Twisted pair no 3 J2 V J2 X SCR SCR J1 20 J1 19 TxCE TxC TxCE TxC Twisted pair no 2 J2 Y J2 AA SCT SCT Table A 8 V 35 DCE Cable Pinout DB 60 to Winchester Type 34 Pin Continued 60 Pin1 Signal Note Direction 34 Pin Signal H1974 60 pin connector J1 15 pin connector J2 Connectors are not to scale J2 8 J2 15 J2...

Страница 58: ... Shorting Group J1 46 Shield_GND Single J2 1 Shield GND J1 11 J1 12 TxD RxD TxD RxD Twisted pair no 3 J2 2 J2 9 Transmit Transmit J1 9 J1 10 RTS CTS RTS CTS Twisted pair no 2 J2 3 J2 10 Control Control J1 28 J1 27 RxD TxD RxD TxD Twisted pair no 6 J2 4 J2 11 Receive Receive J1 1 J1 2 CTS RTS CTS RTS Twisted pair no 1 J2 5 J2 12 Indication Indication J1 26 J1 25 RxC TxCE RxC TxCE Twisted pair no 5 ...

Страница 59: ...2 1 Shield GND J1 28 J1 27 RxD TxD RxD TxD Twisted pair no 6 J2 2 J2 9 Transmit Transmit J1 1 J1 2 CTS RTS CTS RTS Twisted pair no 1 J2 3 J2 10 Control Control J1 11 J1 12 TxD RxD TxD RxD Twisted pair no 3 J2 4 J2 11 Receive Receive J1 9 J1 10 RTS CTS RTS CTS Twisted pair no 2 J2 5 J2 12 Indication Indication J1 24 J1 23 TxC RxC TxC RxC Twisted pair no 4 J2 6 J2 13 Timing Timing J1 15 Shield Contr...

Страница 60: ... baud rate settings Enabling booting from Flash Copying to Flash B 1 Virtual Configuration Register Settings The CRBRIM W E has a 16 bit virtual configuration register which is written into the nonvolatile random access memory NVRAM Some reasons for changing the virtual configuration register settings are Set and display the configuration register value Force the system into the bootstrap program ...

Страница 61: ...re to ignore NVRAM contents 07 0x0080 OEM bit enabled 08 0x0100 Break disabled 10 0x0400 IP broadcast with all zeros 11 to 12 0x0800 to 0x1000 Console line speed 13 0x2000 Boot default ROM software if network boot fails 14 0x4000 IP broadcasts do not have net numbers 15 0x8000 Enable diagnostic messages and ignore NVRAM contents To avoid possibly hanging the CRBRIM W E remember that valid configur...

Страница 62: ...ROM image or from its system image in Flash memory and read any boot system commands that are stored in the configuration file in NVRAM If the CRBRIM W E finds no boot system commands it uses the configuration register value to form a filename from which to netboot a default system image stored on a network server See Table B 3 To change the configuration register while running the system software...

Страница 63: ...ig register 0xvalue The virtual configuration register is stored in nonvolatile memory 4 Exit the configuration mode by entering Ctrl Z The new value settings will be saved to memory however the new settings do not take effect until the system software is reloaded by rebooting the CRBRIM W E 5 To display the configuration register value currently in effect and the value that will be used at the ne...

Страница 64: ...ducts Configuration and Reference Guides If you set the boot field value to a value of 0x2 through 0xF and there is a valid system boot command stored in the configuration file then the CRBRIM W E boots the system software as directed by that value If you set the boot field to any other bit pattern the CRBRIM W E uses the resulting number to form a default boot filename for netbooting See Table B ...

Страница 65: ...cisco2 igs 0 0 1 0 cisco3 igs 0 0 1 1 cisco4 igs 0 1 0 0 cisco5 igs 0 1 0 1 cisco6 igs 0 1 1 0 cisco7 igs 0 1 1 1 cisco10 igs 1 0 0 0 cisco11 igs 1 0 0 1 cisco12 igs 1 0 1 0 cisco13 igs 1 0 1 1 cisco14 igs 1 1 0 0 cisco15 igs 1 1 0 1 cisco16 igs 1 1 1 0 cisco17 igs 1 1 1 1 A boot system command in the router configuration in NVRAM overrides the default netboot filename NOTES ...

Страница 66: ...g bit 10 causes the processor to use all zeros clearing bit 10 the factory default causes the processor to use all ones Bit 10 interacts with bit 14 which controls the network and subnet portions of the broadcast address Table B 4 shows the combined effect of bits 10 and 14 Bits 11 and 12 in the configuration register determine the baud rate of the console terminal Table B 5 shows the bit settings...

Страница 67: ... from which to boot enter the configure terminal command at the enable prompt as in the example following Router configure terminal Enter configuration commands one per line Edit with DELETE CTRL W and CTRL U end with CTRL Z boot system flash filename To disable break and enable the boot system flash command enter the config register command with the value shown in the example following Router con...

Страница 68: ...ister boot field bits 3 2 1 and 0 to zero you can start the server in standalone bootstrap mode The bootstrap mode prompt is an angle bracket To enable the Break key and to default to booting in the bootstrap mode at the bootstrap prompt set the configuration register to 0x0 by entering the following o r 0x0 See Table C 1 for an explanation of the o r command While running the system software you ...

Страница 69: ...cation L with modifier M E S M LExamine location L with size S with modifier M G address Begin execution HHelp for commands IInitialize KDisplays Stack trace L filename TFTP Server IP address TFTP Server Name Load system image from ROM or from TFTP server but do not begin execution OShow software configuration register option settings PSet break point SSingle step next instruction T functionTest d...

Страница 70: ... or booting from anywhere enter the o r 0x0 command Continue The c command allows you to exit the bootstrap mode without rebooting the router after you press the Break key while running the system software image Help The h command prints a summary of the bootstrap commands to the console screen This is the same output produced by entering Initialize The i command causes the bootstrap program to re...

Страница 71: ...tual configuration register currently in effect with a description of the bits o r Resets the virtual configuration register as follows 9600 baud console UART speed Break abort has no effect Ignore the system configuration in NVRAM Boot from ROM o r 0xvalue Sets the virtual configuration register to the hex value value To enable the router to read the nonvolatile RAM configuration clear the ignore...

Страница 72: ...m of ten minutes If the program encounters memory problems it will display appropriate error messages on the console terminal Be sure to reinitialize the processor before booting the system by entering i at the bootstrap prompt C 1 2 Running the Diagnostics Follow these steps to run the bootstrap diagnostics 1 Turn OFF the router 2 Restart the router 3 Within 60 seconds press the Break key on the ...

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