4I29 ETHERNET INTERFACE MANUAL
Contents
1. The 10Base2 input BNC can be terminated on the 4129 card This eliminates the need for the TEE fitting BNC terminator at the end of the line and is very convenient for simple two or three node nets The on card termination should not be used if the Ethernet cabling is subject to frequent change as it is easy to forget that a card is terminated internally The internal termination is enabled by setting the shorting jumper on jumper block W1 in the UP position Setting the jumper to the DOWN position disables the internal termination BUS SIZE SELECTION The 4129 can work with 8 and 16 bit CPU s Bus size is normally selected automatically by sensing the voltage on the PC 104 bus J2 connector pin 34 This is a 5V line on the AT part of the bus connector If 5V is sensed on this line an AT type CPU is assumed and 16 bit bus transfers are used This scheme is not guaranteed to work in all circumstances For example if other I O cards with the J2 connector are used pin 34 of J2 may be tied to 5V even with an XT type CPU Because of this possibility the 4129 can be forced to work in 8 bit mode ifrequired If the shorting jumper on jumper block W2 is placed in the left hand position automatic bus sizing is enabled If the shorting jumper is placed in the right hand position the 4129 is forced into the 8 bit mode Page 8 4129 USER S MANUAL SOFTWARE CONFIGURATION GENERAL Most 4129 setup options are stored in an on card EEPROM T2. C Relative humidity 0 90 Percent Non condensing Page 16 4129 USER S MANUAL REFERENCE INFORMATION WARRANTY Mesa Electronics warrants the products it manufactures to be free effects in material and workmanship under normal use and service for the period of 2 years from date of purchase This warranty shall not apply to products which have been subject to misuse neglect accident or abnormal conditions of operation In the event of failure of a product covered by this warranty Mesa Electronics will repair any product returned to Mesa Electronics within 2 years of original purchase provided the warrantor s examination discloses to its satisfaction that the product was defective The warrantor may at its option replace the product in lieu of repair With regard to any product returned within 2 years of purchase said repairs or replacement will be made without charge If the failure has been caused by misuse neglect accident or abnormal conditions of operation repairs will be billed at a nominal cost ee ee 7 THE FOREGOING WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES 55 OR IMPLIED INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTY OF MERCHANTABILITY FITNESS OR ADEOUACY FOR ANY PARTICULAR PURPOSE OR USE MESA ELECTRONICS SHALL NOT BELIABLE FOR ANY SPECIAL INCIDENTAL OR CONSEOUENTIAL DAMAGES WHETHER IN CONTRACT TORT OR OTHERWISE If any failure occurs the following ste
3. 4129 options are settable via a provided setup utility there are only three option jumpers 8 16 bit bus select and 10Base2 termination local tranceiver power Setup options are stored in an card EEPROM so that the setup utility need only be run when changing hardware settings Programmable options include emulation mode NE2000 or WD8013EBT I O address boot PROM enable boot PROM location boot PROM size interrupt select and 10BaseT 10Base2 AUI selection Selectable interrupts are IRQ2 IRQ3 IRQ4 IRQ5 IRQ10 IRO11 and IRO12 The 10Base2 DC DC converter can be turned off to minimize power when idle and is automatically disabled when the 4129 is setup for twisted pair use The all CMOS design of the 4129 plus efficient DC DC converter keeps operating power below 2 watts Standard packet buffer is 16K bytes but a 64K byte buffer version is available if desired A 32 pin dip socket allows installation of 28 or 32 pin boot PROMs from network vendors The 4129 is capable of writing to the boot PROM allowing use of a 5V flash boot PROM if desired Page 5 4129 USER S MANUAL HARDWARE CONFIGURATION GENERAL The 4129 has only three hardware configuration options as most 4129 configuration is done via the provided software configuration utility The hardware options are 10Base2 BNC termination 8 bit AUTO bus size selection and local tranceiver power disconnect The options are selected with shorting jumpers placed on thr
4. S MANUAL INTERFACE CONNECTORS 10BASE2 CONNECTOR Depending on 4129 model the 4129 may have a BNC connector for connection to 10Base2 Cheapernet networks This connector is marked P1 When the BNC connector is used a BNC TEE must be connected to the 4129 s BNC connector if the Ethernet coax does not end at the 4129 If the coax ends at the 4129 a 50 Ohm terminator must be installed This terminator can be a BNC terminator if the BNC TEE is used or the internal 4129 termination option can be used 10BASET CONNECTOR Depending on 4129 model the 4129 may have a 8 pin modular telephone type jack for use with 10BaseT twisted pair networks This connector is marked P5 When twisted pair networks are used a 10BaseT hub must be supplied You cannot simply connect from one interface card to another when twisted pair cable is used AUI CONNECTOR An AUI connector is provided for connecting to external transceivers This connector is a 16 pin header Whena flat cable with a female header at one end and a female D SUB connector at the other end is plugged onto the 16 pin header the D SUB pinout matches the AUI standard pinout This flat cable is available from MESA If you make your own cable note that pin 16 of the flat cable is not used The flat cable should be less than one foot long as it is not a good impedance match to the 78 Ohm twisted pair transceiver cables 12V power on the AUI connector is directly connected to the PC 104 bus 1
5. 2V system power EXTERNAL TRANCEIVER OPTION The 4129 is available with a low cost external 10Base2 tranceiver option This panel mount BNC tranceiver allows simple external access to the 10Base2 connector without depending on the PC 104 stack location This tranceiver connects to the 4129 s AUI connector with a 20 pin flat cable and gets its isolated power from the 4129 s DC DC converter This flat cable must be foot or shorter in length When installing the flat cable make sure that the pin one mark on the cable is aligned with the white dot on connector P4 When the external tranceiver is used you must also move jumper W1 to the down position to disconnect the local BNC tranceiver Page 14 4129 USER S MANUAL INSTALLATION GENERAL When the 4129 has been properly configured for its application it can be inserted into a PC 104 stack The standoffs should then be tightened to secure the 4129 in its place When the 4129 is secured in the stack the I O connectors can be plugged in from the side Page 15 4129 USER S MANUAL REFERENCE INFORMATION SPECIFICATIONS MIN MAX UNIT NOTES POWER SUPPLY Voltage 4 5 5 5 V Supply current 5V 125 mA AUL 10BaseT Supply current 5V 250 mA 10Base2 BUS LOADING Input capacitance 15 pF Input leakage current 5 uA Output drive capability 150 pF Output sink current 12 mA ENVIRONMENTAL Operating temperature range I version 40 85 C C version 0 70
6. 4129 ETHERNET INTERFACE MANUAL VERSION 1 6 Copyright 1997 by MESA ELECTRONICS Richmond CA Printed in the United States of America All rights reserved This document and the data disclosed herein is not to be reproduced used disclosed in whole or in part to anyone without the written permission of MESA ELECTRONICS Mesa Electronics 4175 Lakeside Drive Suite 100 Richmond CA 94806 1950 Tel 510 223 9272 Fax 510 223 9585 E Mail tech mesanet com Website www mesanet com 4129 USER S MANUAL 4129 USER S MANUAL TABLE OF CONTENTS HANDLING PRECAUTIONS Handling precautions tivas AAA A INTRODUCTION General tsent A RENE HARDWARE CONFIGURATION A mv aaa ds ul al d de bel vn aaa nad A Default hardware configuration ri vita seek mile i aled mitra eee Default software configuration bucal la desde External 10Base2 win A A ia Ah AA Panelimount 10BaseT option 24424 ku taima id kaa omil TEEMA is E alana A SOFTWARE CONFIGURATION General cuan adsl iia SETIP AA A A AD QUIERSET a A A tiara LINKOR A E t SHOW4129 imestatakse iban CONNECTORS a th aoe es 14 Twisted P IEEONHEEL N 23 la ma AEDA AULcONNEelOFsE oon Satie en ka ee EES External transceiver option
7. E P5 PO 10BaseT 832 R35 16 Tl MESA ELECTRONICS 4129 12 REV D Page 7 4129 USER S MANUAL HARDWARE CONFIGURATION EXTERNAL 10BASE2 TRANCEIVER The 4129 can use an optional external 10base2 BNC tranceiver module from MESA This small circuit card module can be panel mounted up to 1 foot away from the 4129 card This circuit card is called the MAU and is included with the 4129 E model If the external BNC tranceiver is used you must disconnect the local tranceivers power This is done by moving W1 to the down position The 4129 setup must use the THIN cable selection when using the MAU as the MAU s power comes from the local tranceiver power supply It is not necessary to change the default enabled W 1 position when selecting between thin thick or twisted pair interfaces as the hardware on the 4129 card enables the DC DC converter only when the thin ethernet interface is selected PANEL MOUNT 10BASET OPTION If the RJ45 connector on the 4129 is not located in a convenient place for the 10BaseT cable an optional adapter is available from MESA that allows remote mounting of the RJ45 connector up to 1 foot away from the 4129 The part name of this adapter is TAU The TAU also has link status receive and transmit LEDs TERMINATION
8. WD8013 operation Note that strict compatibility with the WD8013 mode is not guaranteed with the National ATLANTIC chip Therefore the NE2000 mode is suggested COMPATIBLE YES YES NO NO If COMPATIBLE is YES the buffer mapping matches the standard size and location for WD8013 and NE2000 compatibility If COMPATIBLE is NO and the 4129 has 64K byes of buffer RAM all buffer RAM will be accessible PORTADD 240 300 YES 280 2C0 300 320 340 360 Sets the 4129 port address Make sure that no other card in the system uses the same I O address Page 10 4129 USER S MANUAL SOFTWARE CONFIGURATION SET4129 PARAMETER INTERRUPT PROMLOC VALUES NONE IRQ2 IRQ3 IRQ4 IRO5 IRQIO IRQ11 IRQ12 NONE C000 16K C400 16K C800 16K CC00 16K D000 16K D400 16K D800 16K DC00 16K C000 32K C800 32K D000 32K D800 32K C000 64K D000 64K DEFAULT IMMEDIATE IRQ2 YES Selects the IRQ line that the 4129 will drive Make sure that no other card in the system uses the same interrupt line NONE NO Selects the boot PROM location and size NONE means that the boot PROM is disabled Make sure that the boot PROM location does not overlap any memory in the system Page 11 4129 USER S MANUAL SOFTWARE CONFIGURATION SET4129 PARAMETER VALUES DEFAULT IMMEDIATE CABLETYPE TWISTED TWISTED YES THIN THICK TWISTEDLOW Selects the interface type DC DC converter is enabled when THIN is selected TWISTEDLOW uses the t
9. auku mida fet dst abet ele ete INSTALLATION General sien ike ten ata ie ota die eae tes Coa ie eo E als O 14 REFERENCE INFORMATION SPSCINCAUONS e ed aega M sade een dena tute bade ven deta Seiad ea 16 Warranty piid Od Sedans 17 aid ikem ak maseka aka beds 19 4129 USER S MANUAL HANDLING PRECAUTIONS STATIC ELECTRICITY The CMOS integrated circuits on the 4129 can be damaged by exposure to electrostatic discharges The following precautions should be taken when handling the 4129 to prevent possible damage A Leave the 4129 in its antistatic bag until needed B All work should be performed at an antistatic workstation C Ground equipment into which 4129 willbe installed D Ground handling personnel with conductive bracelet through megohm resistor to ground E Avoid wearing synthetic fabrics particularly Nylon Page 4 4129 USER S MANUAL INTRODUCTION GENERAL The 4129 is a 16 bit Ethernet interface implemented on a stackable PC 104 bus card The 4129 supports 10BaseT Twisted pair and 10Base2 Thin BNC Ethernet plus has an AUI connector for connection to external transceivers The 4129 can also be supplied with a low cost external panel mount BNC transceiver for applications where access to the 4129 card is restricted The 4129 can be compatible with the NE2000 or WD8013EBT depending on EEPROM setup options Most
10. ee pin headers In the following discussions when the words up down right and left are used it is assumed that the 4129 card is oriented with its bus connectors J1 and J2 at the bottom edge of the card nearest the person doing the configuration DEFAULT HARDWARE CONFIGURATION The 4129 card is configured in the following manner when shipped from the factory FUNCTION DEFAULT JUMPER POSITION LOCAL XCVR POWER ENABLED W1 UP TERMINATION DISABLED W2 DOWN BUS SIZE AUTO LEFT DEFAULT SOFTWARE CONFIGURATION The default EEPROM configuration on 4129 card as shipped from the factory is as follows PARAMETER VALUE MAINMODE IOMAPPED COMPATIBLE YES PORTADD 300 INTERRUPT IRQ5 PROMLOC NONE CABLETYPE THIN FASTREAD NO FASTIO16 NO FASTCHRDY NO Page 6 4129 USER S MANUAL HARDWARE CONFIGURATION DEFAULT JUMPER SETTINGS E 10Base2 12 CH AUI al 8 R20 RI6 J amp external i i LR3 L l0Basez aT
11. his includes I O address interrupt line selection Boot PROM enable size and location selection of compatibility mode and various timing options Two setup utility programs are supplied with the 4129 These programs allow you to change these parameters and display the current card setup SET4129 SET4129 is a utility program for setting 4129 EEPROM options SET4129 is invoked with two or optionally three command line parameters a port address a file name and an T for immediate mode SET4129 300 WD8013 CFG 1 The port address will be 300 the first time SET4129 is used because all 4129 cards are shipped from MESA configured for that location All port addresses are in hexadecimal Once a 4129 card has been configured to a different port address you need to specify the new port address when running SET4129 Because it is possible to forget the port location of a 4129 card the port address on the command line can be replaced with S or This causes SET4129 to look for the 4129 card by probing all of the possible 4129 I O addresses You should not use the S earch option if you know the 4129 port address as it is not guaranteed to work in all cases The second command line parameter is the name ofthe configuration file The configuration file is an ASCII file containing the configuration parameters The 4129 distribution disk has two example configuration files NE2000 CFG and WD8013 CFG You should use these files as a starting poin
12. ps should be taken 1 Notify Mesa Electronics giving full details of the difficulty On receipt of this information service data or shipping instructions will be forwarded to you 2 On receipt of the shipping instructions forward the product in its original protective packaging transportation prepaid to Mesa Electronics Repairs willbe made at Mesa Electronics and the product returned transportation prepaid Page 17 4129 USER S MANUAL REFERENCE INFORMATION THIS PAGE INTENTIONALLY LEFT ALMOST BLANK Page 18 4129 USER S MANUAL REFERENCE INFORMATION SCHEMATICS Page 19
13. r example QUICKSET 320 CABLETYPE THIN Would set the 4129 at 0320H to use the BNC interface LINKOK LINKOK is a simple utility to test the status of the 10BaseT link and optionally switch the 4129 cable type to 10 baseT LINKOK is invoked with the hexadecimal port address on the command line LINKOK 300 AUTO If the optional parameter AUTO is supplied LINKOK will change the CABLETYPE setting to 10BASET if the 10BaseT link status is ok This can be used to automatically select the 10BaseT port if the RJ 45 cable is installed The CABLETYPE will revert to the original 4129 card settings after a hardware reset LINKOK should be run before any network software SHOW4129 SHOWA4129 is a utility program that displays some of the current 4129 setup parameters and the 4129 Ethernet address The COMPATIBLE option and the PROMLOC option are not readable so they are not displayed SHOW4129 is invoked with the hexadecimal port address on the command line SHOW4129 300 Because it is possible to forget the port location of a 4129 card the port address on the command line can be replaced with S or This causes SHOW4129 to look for the 4129 card by probing all of the possible 4129 I O addresses You should not use the S earch option if you know the 4129 port address as it is not guaranteed to work in all cases SHOW4129 should not be run after network software is installed or unpredictable behavior may result Page 13 4129 USER
14. t to creating your own configuration files The format of the configuration file is very simple each line of the configuration file consists of a parameter name followed by a parameter value If a parameter name is not specified in the configuration file that parameter will be set to the default value shown in the following table Note that the defaults in the following table are not the same as the factory default options The third parameter is the optional The I stands for Immediate When I is specified the set utility does not change the EEPROM setup values but only changes the current 4129 operating parameters These changes take effect immediately but only last until the next hardware reset This can be used for trying different setups before commiting them to permanent storage in the EEPROM Certain 4129 parameters cannot be changed in the immeditate mode If a configuration file that includes parameters that cannot be changed in the immediate mode is used in the immediate mode warnings will be printed and those parameter changes will be ignored Page 9 4129 USER S MANUAL SOFTWARE CONFIGURATION SET4129 The following table shows SET4I29 parameter names parameter values default parameter values and whether the parameter can be changed in immediate mode PARAMETER VALUES DEFAULT IMMEDIATE MAINMODE IOMAPPED IOMAPPED NO MEMMAPPED Main mode sets the emulation mode of the 4129 to I O mapped NE2000 or memory mapped
15. wisted pair interface with a lower squelch level for use with longer than normal cables FASTREAD YES NO YES NO In I O mapped mode causes the next data to be fetched before the previous IORD has completed Only enable in systems with fast ISA bus FASTIO16 YES NO YES NO Ifenabled causes IOCS 16 to be generated by address decode only If disabled IOCS16 15 generated with IORD and IOWR May be needed with some chip sets FASTCHRDY YES NO YES NO If enabled IOCHRDY will be generated when BALE goes high If disabled IOCHRDY will be generated with IORD and IOWR SET4129 should be run before any network software has been installed or unpredictable behavior may result After SET4129 has been run in the non immediate mode you must reset the computer system for the new configuration parameters to take effect A hardware reset is necessary CONTROL ALT DEL will not work Page 12 4129 USER S MANUAL SOFTWARE CONFIGURATION QUICKSET QUICKSET is a similar utility to SET4129 except that is can only change one 4129 parameter at a time and the parameter to be changed is supplied on the command line QUICKSET only changes the 4129 register vaulues not the EEPROM so that the 4129 will return to its previous configuration after a system reset QUICKSET is invoked with the hexadecimal port address on the command line QUICKSET 300 PARAMETER VALUE Where PARAMETER and VALUE are the same parameters and values that SET4129 uses Fo
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