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3.04.2 – Floppy Configuration Sub-Menu 

 

You can use this screen to specify options for the Floppy Configuration Settings. Use the up and 
down <Arrow> keys to select an item. Use the <Plus> and <Minus> keys to change the value of 
the selected option. The settings are described on the following pages. 

 

BIOS Setup Utility 

Main       

Advanced

       PCI/PnP       Boot       Security       Chipset       Power       Exit 

  

Floppy Configuration 

  

 
Floppy A                                                              [1.44 MB]  
Floppy B                                                              [1.44 MB] 
 

 
Use [ENTER], [TAB] or 
[SHIFT_TAB] to select a 
field 
 
Use [+] or [-] to 
configure system time. 
 
+/-     Change Field 
Tab   Select Field 
F1     Help 
F10   Save and Exit 
ESC  Exit 
 

 
 
 

Feature 

Option 

Description 

Floppy Configuration 

Disabled 

1.3MB 

720KB 

1.44/1.25MB 

Floppy A 

2.88MB 

This setting selects the type of the 
floppy disk drive installed in system.

Disabled 

1.3 MB 

720 KB 

1.44/1.25 MB 

Floppy B 

2.88 MB 

This setting selects the type of the 
floppy disk drive installed in system.

 
 
 
 

3.04.3 – Super I/O Configuration Sub-Menu 
 

You can use this screen to select options for the Super I/O settings. Use the up and down arrow 
(

Ç

/

È

) keys to select an item. Use the Plus and Minus (+/-) keys to change the value of the 

selected option 

 

 

 

 

Summary of Contents for Tomcat K8S S2850

Page 1: ...ereof are trademarks of QLogic Corporation IBM PC AT PS 2 are trademarks of IBM Corporation Winbond is a trademark of Winbond Electronics Corporation Broadcom is a trademark of Broadcom Corporation and or its subsidiaries ATI and Rage XL are trademarks of ATI Corporation Portable Document Format PDF is a trademark of Adobe Corporation Information contained in this document is furnished by TYAN Com...

Page 2: ...r Supply 2 25 Finishing up Chapter 3 BIOS 3 00 BIOS Setup Utility 3 01 BIOS Menu Bar 3 02 BIOS Legend Bar 3 03 BIOS Main Menu 3 04 BIOS Advanced Menu 3 04 1 IDE Configuration Sub Menu 3 04 2 Floppy Configuration Sub Menu 3 04 3 Super I O Configuration Sub Menu 3 04 4 Hardware Health Configuration Sub Menu 3 04 5 Event Log Control Sub Menu 3 04 6 Remote Access Configuration Sub Menu 3 04 7 USB Conf...

Page 3: ...b Menu 3 09 2 Global Timer Reload Sub Menu 3 10 BIOS Exit Menu Chapter 4 Diagnostics 4 00 Beep Codes 4 01 Flash Utility Appendix I Glossary Appendix II SMDC Information Technical Support Page 50 Page 51 Page 52 Page 53 Page 53 Page 53 Page 54 Page 58 Page 59 ...

Page 4: ...in floppy drive cable 1 x Ultra DMA 133 100 66 33 IDE cable 2 x SATA cable optional 1 x SATA Driver Power Adapter optional 1 x 25 pin printer cable optional 1 x Tomcat K8S S2850 User s Manual 1 x Tomcat K8S S2850 Quick Reference 1 x TYAN driver CD 1 x Serial ATA driver diskette optional 1x I O shield If any of these items are missing please contact your vendor dealer for replacement before continu...

Page 5: ... ZIF socket Supports one AMD Opteron TM processor Onboard 3 phase PWM Controller Integrated 128 bit DDR Memory Controller Chipset AMD 8111 TM HyperTransport TM I O Hub Winbond W83627HF Super I O chip Winbond W83782D Hardware Monitor chip Memory 128 bit dual channel memory bus Total of four 184 pin 2 5 Volt DDR DIMM sockets Supports up to 8 Gigabytes Registered DDR Supports ECC type memory modules ...

Page 6: ... one connectors Stacked USB 1 1 two connectors Stacked PS 2 keyboard and mouse connectors Two RJ 45 LAN connectors with LEDs Regulatory FCC Class B Declaration of Conformity European Community CE Declaration of Conformity Tyan SMDC is a System Management Daughter Card It enables you to access the hardware remotely and perform monitor control and diagnose activities effectively See Appendix II Pg 5...

Page 7: ...erboard from the antistatic bag Unplug the power from your computer power supply and then touch a safely grounded object to release static charge i e power supply case For the safest conditions Tyan recommends wearing a static safety wrist strap 2 Hold the motherboard by its edges and do not touch the bottom of the board or flex the board in any way 3 Avoid touching the motherboard components IC c...

Page 8: ...teron TM Processor 200 333MHz 144bit Reg DDR 8x8 HyperTransport TM 400MT s PCI 32 bit 33MHz LPC Super I O SATA SiI3114 BCM5705 BCM5705 BCM4401 ATI Rage XL EIDE ATA 133 USB 1 1 FDD Port PS 2 KB MS Printer Serial ports LPC Winbond 83782D Optional BMC IPMI 1 5 SMB IPM ICM BIOS Optional ...

Page 9: ...2 01 Board Parts Jumpers and Connectors Note A depicts pin 1 This diagram is representative of the latest board revision available at the time of publishing The board you receive may not look exactly like the above diagram ...

Page 10: ...an Connector See Section 2 07 J41 Keyboard Lock Connector See Section 2 08 J42 External Speaker Header See Section 2 09 J43 Front Panel Connector See Section 2 10 J48 Chassis Intrusion Header See Section 2 11 J50 SMDC Header See Appendix II J51 LAN 1 LED Header See Section 2 12 J52 LAN 2 LED Header See Section 2 13 J57 Power LED Connector See Section 2 14 Jumper Legend OPEN Jumper OFF Without jump...

Page 11: ...ng Power off system and disconnect both power connectors from the motherboard Use jumper cap to close Pin_2 and Pin_3 for several seconds to Clear CMOS Put jumper cap back to Pin_1 and Pin_2 default setting Reconnect power power on system 2 05 USB Header J22 Signal Description Pin Pin Signal Description VCC 1 2 VCC USB Channel_1 Data 3 4 USB Channel_2 Data USB Channel_1 Data 5 6 USB Channel_2 Data...

Page 12: ...4 RTS Request to Send TXD Transfer Data 5 6 CTS Clear to Send DTR Data Terminal Ready 7 8 RI Ring Indicator GND 9 10 NC 2 07 FAN Connectors J32 J37 FAN Description Function Amp Rated Maximum J33 CPU FAN1 RPM Read 1 0A J34 Chassis FAN2 RPM Read 1 0A J35 Chassis FAN3 RPM Read 1 0A J32 Chassis FAN4 RPM Read 1 0A J36 Chassis FAN5 RPM Read 1 0A J37 Chassis FAN6 RPM Read 1 0A ...

Page 13: ...2 keyboard CLOSED To disable PS 2 keyboard 2 09 External Speaker Header J42 Pin_1 Speaker Pin_2 Buzzer Pin_3 Speaker Buzzer Pin_1 Pin_4 Pin_4 Speaker Close Pin 2and Pin 3 Default Enable onboard buzzer Open Pin 1 Pin 4 Disable onboard buzzer and can connect to chassis 1x4 speaker ...

Page 14: ... 6 PWR Button Reset Button 7 8 PWP Button NC 9 10 Sleep Button NC 11 12 Sleep Button NC 13 14 NC NC 15 16 NC Chassis Intru 17 18 Chassis Intru 2 11 Chassis Intrusion Header J48 1 2 Pin_1 INTRUDER_L Pin_2 GND The Chassis Intrusion Header provides chassis intrusion monitoring function Note For use with chassis that support this feature ...

Page 15: ...d 100Mb link Yellow LED flashing 100Mb activity Both LED Solid Gigabit link Both LED flashing Gigabit activity 2 13 Gigabit or 10 100M LAN2 LED Header J52 Pin_4 Green Pin_3 Green Pin_2 Yellow Pin_1 Pin_1 Yellow Gigabit LAN The same as J51 LAN1 10 100M LAN optional Green LED solid 10Mb link Green LED flashing 10Mb activity Yellow LED solid 100Mb link Yellow LED flashing 100Mb activity ...

Page 16: ...all the support studs If you re unsure of stud placement simply lay the motherboard inside the chassis and align the screw holes of the motherboard to the studs inside the case If there are any studs missing you will know right away since the motherboard will not be able to be securely installed Some chassis include plastic studs instead of metal Although the plastic studs are usable Tyan recommen...

Page 17: ...ssor For example while PC1600 DDR modules are compatible with all DDR based motherboards they will not work if you are required to run the motherboard and processor buses at 133MHz For this PC2100 DDR modules are required Critically important is whether you re using the recommended memory for the current board you have For this information please check Tyan s web site at www tyan com The following...

Page 18: ... be automatically detected The Tomcat K8S supports up to 8GB Not validated at the time of print subject to change Valid DIMM Configurations The processor supports 64 bit mode and 128 bit mode configurations of the DIMMs In 64 bit mode only DIMMs 1 and 3 can be populated Possible combinations of DIMMs in 64 bit mode are listed in the table as below In 128 bit mode a minimum of two DIMMs is required...

Page 19: ... When installing memory modules make sure the modules align properly with the memory socket There should be keys small indents on your memory modules that fit according to the keys in the memory socket DDR modules and sockets have only one key which is slightly near the center of the module socket SDRAM modules also referred to as PC100 or PC133 and their sockets have two keys and will not insert ...

Page 20: ...r only AMD Opteron TM processor are certified and supported with this motherboard Check the following page on TYAN s website for latest processor support http www Tyan com The following diagrams will detail how to install your processor The processors you choose to use may not look exactly like the one pictured above nor will the socket look exactly the same The diagram is provided as a visual gui...

Page 21: ...ovides a base for the installation of the heatsink retention frame and heatsink Because there are many different types of heatsinks available from many different manufacturers a lot of them have their own method of installation For the safest method of installation and information on choosing the appropriate heatsink please refer to AMD s website at http www amd com The following diagram will illu...

Page 22: ...in layer on to the CPU lid applying too much will actually reduce the cooling NOTE Aways check with the manufacturer of the heatsink processor to ensure the Thermal Interface material is compatible with the processor meets the manufacturer s warranty requirements 2 19 Heatsink Installation Procedures Type A CAM LEVER TYPE INSTALLATION 1 After placing backplate and interface material under motherbo...

Page 23: ...racket Place metal clip over retention frame tab Repeat for other side 2 Insert screw through metal clip BE SURE METAL CLIP IS LOCKED ONTO RETENTION FRAME TAB 3 Tighten screw through metal clip Repeat on other side DO NOT OVER TIGHTEN Finishing Installing the Heatsink After you finish installing the heatsink onto the processor and socket attach the end wire of the fan which should already be attac...

Page 24: ...ed to connect to drives Note Always remember to properly set the drive jumpers If only using one device on a channel it must be set as Master for the BIOS to detect it TIP Pin 1 on the IDE cable usually designated by a colored wire faces the drive s power connector SATA Drivers The Tomcat K8S may be also equipped with 4 Serial ATA SATA channels Connections for these drives are also very simple The...

Page 25: ...se your system to freeze or crash when trying to read and or write to diskettes Symptoms of incorrectly installed floppy drives Drive is not automatically detected Usually caused by faulty cables cables put in backwards or a bad floppy drive or motherboard Try another floppy drive to verify the problem if the cable is properly installed or try replacing the actual cable Also check to see if the on...

Page 26: ...ard rather than damaging both the motherboard and the add in card TIP It s good practice to install add in cards in a staggered manner rather than directly adjacent to each other This allows air to more easily circulate within the chassis providing improved cooling for all installed devices NOTE YOU MUST ALWAYS unplug the power connector to the motherboard before performing system hardware changes...

Page 27: ...nto the motherboard are keyboards mice and printer cables The following diagram will detail the ATX port stack for the following board Besides being used primarily to connect printers the Printer Port is also used for devices such as Zip drive some external CD RW drives and or other external devices More on the uncommon side these days are the Serial Ports They were primarily used to connect exter...

Page 28: ... is sufficient for systems without many devices i e 1 hard drive 1 optical drive and 1 or 2 expansion cards NOTE The S2850 Tomcat K8S peripheral drive power connector must be independent of any other devices A device such as a DVD CD ROM drive hard drive or any other devices cannot be attached onto the same power line If connected system stability is compromised 2 25 Finishing Up Congratulations o...

Page 29: ...on Model xxx Speed xxxx MHz Count x System Memory Size xxxx MB System Time xx xx xx System Date xx xx xxxx Use ENTER TAB or SHIFT_TAB to select a field Use or to configure system time Change Field Tab Select Field F1 Help F10 Save and Exit ESC Exit To select an item Use the left right Å Æ arrow keys to make a selection To display a sub menu A pointer marks all sub menus Use the arrow keys to move ...

Page 30: ...u The Main BIOS Menu is the first screen that you can navigate The Main BIOS setup menu screen has two main frames The left frame displays all the options that can be configured Grayed out options cannot be configured options in blue can be changed The right frame displays the key legend Above the key legend is an area reserved for a text message When an option is selected in the left frame it is ...

Page 31: ...Health Function Event Log Control Remote Access Configuration USB Configuration Onboard Devices Configuration Watchdog Timer Configuration Use ENTER TAB or SHIFT_TAB to select a field Use or to configure system time Change Field Tab Select Field F1 Help F10 Save and Exit ESC Exit Feature Description Advanced Settings IDE Configuration Menu Item Configures devices connected to AMD8111 IDE controlle...

Page 32: ... F1 Help F10 Save and Exit ESC Exit Feature Option Description IDE Configuration BOTH Primary Secondary Onboard PCI IDE Controller Disabled This setting determines whether the AMD 8111 primary and secondary IDE channels are activated Auto User ATAPI Removable CD ROM Primary Secondary Master Primary Secondary Slave None Auto To determine the IDE drive type by system BIOS User To set IDE drive type ...

Page 33: ...SHIFT_TAB to select a field Use or to configure system time Change Field Tab Select Field F1 Help F10 Save and Exit ESC Exit Feature Option Description Floppy Configuration Disabled 1 3MB 720KB 1 44 1 25MB Floppy A 2 88MB This setting selects the type of the floppy disk drive installed in system Disabled 1 3 MB 720 KB 1 44 1 25 MB Floppy B 2 88 MB This setting selects the type of the floppy disk d...

Page 34: ...ber Disabled turn off port 2F8 IRQ3 3E8 IRQ4 2E8 IRQ3 3F8 IRQ4 Serial Port2 Address Disabled Sets the serial port 2 COM2 base I O address and an interrupt number Disabled turn off port 378 278 3BC Parallel Port Address Disabled Assigns the Parallel Port base I O address Disabled turn off port Bi Directional Normal EPP ECP Parallel Port Mode Disabled Configures Parallel port mode Bi Directional sen...

Page 35: ...d F1 Help F10 Save and Exit ESC Exit BIOS Setup Utility Main Advanced PCI PnP Boot Security Chipset Power Exit Temperature and Fan Speed Report CPU Temperature PWM Temperature CPU Fan Speed System Fan 2 Speed System Fan 3 Speed System Fan 4 Speed System Fan 5 Speed System Fan 6 Speed xx C xx F xx C xx F xx RPM xx RPM xx RPM xx RPM xx RPM xx RPM Use ENTER TAB or SHIFT_TAB to select a field Use or t...

Page 36: ...Displays CPU Ambient System Temperatures CPU1 Fan Speed System Fan 2 Speed System Fan 3 Speed System Fan 4 Speed System Fan 5 Speed System Fan 6 Speed Displays speed of fans connected to appropriate Fan headers CPU V_core 3 3Vin 5Vin 12Vin DDR1 25V DDR2 5V Southbridge 1 8V USB 1 8V 3 3V Standby 5V Standby 1 2V Hyper Transport 3V Battery Displays Voltage for CPU memory other devices 3 04 5 Event Lo...

Page 37: ...ity usage of the Event Log 3 04 6 Remote Access Configuration Sub Menu You can use this screen to view the Remote Access Configuration Menu This feature allows access to the Server remotely via serial port Use the up and down arrow Ç È keys to select an item Use the Plus and Minus keys to change the value of the selected option The settings are described on the following pages BIOS Setup Utility M...

Page 38: ...creen to view the USB Configuration Menu Use the up and down arrow Ç È keys to select an item Use the Plus and Minus keys to change the value of the selected option The settings are described on the following pages BIOS Setup Utility Main Advanced PCI PnP Boot Security Chipset Power Exit USB Configuration USB Devices Enabled Legacy USB Support Auto USB Beep Message Disabled Use ENTER TAB or SHIFT_...

Page 39: ... configure system time Change Field Tab Select Field F1 Help F10 Save and Exit ESC Exit Feature Option Description Onboard Devices Configuration Enabled Onboard ATI Video LAN1 LAN2 Serial ATA Disabled Allows user to enable or disable onboard ATI video Serial ATA controller and Onboard LAN individually Enabled Onboard LAN1 LAN2 Serial ATA Option Rom Disabled Allows user to enable or disable onboard...

Page 40: ...cted option The settings are described on the following pages BIOS Setup Utility Main Advanced PCI PnP Boot Security Chipset Power Exit PCI PnP Setting Plug Play OS No PCI Latency Timer 64 Allocate IRQ to PCI VGA Yes Palette Snooping Disabled PCI IDE BusMaster Disabled IRQ3 Available IRQ4 Available IRQ5 Available IRQ7 Available IRQ9 Available IRQ10 Available IRQ11 Available IRQ14 Available IRQ15 A...

Page 41: ...es Allocate IRQ to PCI VGA No Allows or restricts the system from giving the VGA adapter an IRQ Disabled Palette Snooping Enabled This is the default setting and should not be changed unless the VGA card manufacturer requires Palette Snooping to be Enabled Available IRQ3 IRQ15 Reserved Allows user to reserve a specific IRQ for a legacy device Note most hardware devices OS used do not support manua...

Page 42: ...row Ç È keys to select an item Use the Plus and Minus keys to change the value of the selected option BIOS Setup Utility Main Advanced PCI PnP Boot Security Chipset Power Exit Boot Settings Configuration Quick Boot Disabled Quiet Boot Disabled Quick Boot Add On ROM Display Mode Force BIOS Boot up Number Lock On PS 2 Mouse Support Enabled Typematic Rate Fast System Keyboard Present Parity Check Dis...

Page 43: ...To OS 2 Yes Set this option to yes only if booting to OS 2 Enabled Wait for F1 If Error Disabled Allows user to disable the Press F1 to Continue error message when error is detected Enabled Hit Del Message Display Disabled Allows user to disable the Press DEL to enter setup message during POST Disabled Interrupt 19 Capture Enabled Allows devices such as network card to capture INT19 for booting 3 ...

Page 44: ...r Password Installed If the password has been set Installed displays If no password is set Not Installed displays Change Supervisor Password Select this option to change Supervisor Password Change User Password Select this option to change User Password Clear User Password Select this option to clear User Password Disabled Boot Sector Virus Protection Enable Protects the first sector of the Hard D...

Page 45: ... settings Select a menu by highlighting it using the Arrow Ç È keys and pressing Enter The settings are described on the following pages BIOS Setup Utility Main Advanced PCI PnP Boot Security Chipset Power Exit North Bridge Chipset Configuration Memory Configuration ECC Configuration IOMMU Configuration Use ENTER TAB or SHIFT_TAB to select a field Use or to configure system time Change Field Tab S...

Page 46: ...ry access to be spread across memory nodes 8beats Burst Length 4beats Burst length must be set to 8beats for 128bit memory support 3 08 1 2 ECC Configuration Sub Menu This menu allows the user to configure ECC setup for system DRAM Use the up and down arrow Ç È keys to select an item Use the Plus and Minus keys to change the value of the selected option BIOS Setup Utility Main Advanced PCI PnP Boo...

Page 47: ...idle 3 08 1 3 IOMMU Configuration Sub Menu This menu allows the user to enable IOMMU for LINUX Use the up and down arrow Ç È keys to select an item Use the Plus and Minus keys to change the value of the selected option BIOS Setup Utility Main Advanced PCI PnP Boot Security Chipset Power Exit IOMMU Configuration IOMMU Mode Disabled Use ENTER TAB or SHIFT_TAB to select a field Use or to configure sy...

Page 48: ...n the AMD8111 I O Hub Auto Data CalComp Data HT Link 0 P Comp Mode CalComp Data Auto uses hardware compensation values Other values add to or subtract from hardware generated value Recommended setting is Auto Auto Data CalComp Data HT Link 0 N Comp Mode CalComp Data Auto uses hardware compensation values Other values add to or subtract from hardware generated value Recommended setting is Auto Auto...

Page 49: ...he system to utilize ACPI Advanced Configuration and Power Interface specification Power off Restore on AC Power Power On Configures how the system board responds to a power failure Disabled Power Management APM Enabled Disabled prevents the chipset power management and APM Advanced Power Management features Enabled allows the chipset power management and APM features On Off Standby Power Button M...

Page 50: ... the specified period of display inactivity has expired Suspend Standby HDD Power down Mode Off Specifies the power conserving state that the hard disk drive enters after the specified period of hard drive inactivity has expired 3 09 1 Advanced ACPI Configuration Sub Menu Use this screen to select options for the ACPI Advanced Configuration Settings Use the up and down arrow Ç È keys to select an ...

Page 51: ...et Power Exit Global Timer Reload Monitor IRQ 3 Monitor Monitor IRQ 4 Ignore Monitor IRQ 5 Ignore Monitor IRQ 7 Monitor Monitor IRQ 9 Ignore Monitor IRQ 10 Ignore Monitor IRQ 11 Ignore Monitor IRQ 13 Ignore Monitor IRQ 14 Monitor Monitor IRQ 15 Ignore Use ENTER TAB or SHIFT_TAB to select a field Use or to configure system time Change Field Tab Select Field F1 Help F10 Save and Exit ESC Exit Featur...

Page 52: ... option to exit setup utility and re boot All new selections you have made are stored into CMOS System will use the new settings to boot up Discard Changes and Exit Use this option to exit setup utility and re boot All new selections you have made are not stored into CMOS System will use the old settings to boot up Discard Changes Use this option to restore all new setup values that you have made ...

Page 53: ...ed Before contacting your vendor or Tyan Technical Support be sure that you note as much as you can about the beep code length and order that you experience Also be ready with information regarding add in cards drives and O S to speed the support process and come to a quicker solution 4 01 Flash Utility Every BIOS file is unique for the motherboard it was designed for For Flash Utilities BIOS down...

Page 54: ...d and execute an OS as well as provide the ability to return to the BIOS if the OS load process fails At that point the next IPL device is called upon to attempt loading of the OS BIOS Basic Input Output System the program that resides in the ROM chip which provides the basic instructions for controlling your computer s hardware Both the operating system and application software use BIOS routines ...

Page 55: ... few milliseconds This refresh requirement makes DRAM three to ten times slower than non recharged RAM such as SRAM ECC Error Correction Code or Error Checking and Correcting allows data to be checked for errors during run time Errors can subsequently be corrected at the same time that they re found EEPROM Electrically Erasable Programmable ROM also called Flash BIOS it is a ROM chip which can unl...

Page 56: ...es These modes use the CPU for data transfer in contrast DMA channels do not PCI refers to the type of bus used by these modes to communicate with the CPU PCI to PCI bridge allows you to connect multiple PCI devices onto one PCI slot Pipeline burst SRAM a fast secondary cache It is used as a secondary cache because SRAM is slower than SDRAM but usually larger Data is cached first to the faster pri...

Page 57: ...ic LSI only on LSI SCSI boards Sleep Suspend mode in this mode all devices except the CPU shut down SDRAM Static RAM unlike DRAM this type of RAM does not need to be refreshed in order to prevent data loss Thus it is faster and more expensive Standby mode in this mode the video and hard drives shut down all other devices continue to operate normally UltraDMA 33 66 100 a fast version of the old DMA...

Page 58: ...sure his server machines are always taken care Tyan SMDC is not a peripheral card Unlike regular peripheral card such as AGP card Network card or SCSI card SMDC does not require any hardware specific driver As long as a standby power comes into the system SMDC will begin looking after the system Tyan SMDC provides diversified methods to communicate with the hardware IT manager has the flexibility ...

Page 59: ...t your dealer for help BEFORE calling TYAN 4 Check the TYAN user group alt comp periphs mainboard TYAN Returning Merchandise for Service During the warranty period contact your distributor or system vendor FIRST for any product problems This warranty only covers normal customer use and does not cover damages incurred during shipping or failure due to the alteration misuse abuse or improper mainten...

Page 60: ... a circuit different from that of the receiver Consult the dealer on an experienced radio television technician for help Notice for Canada This apparatus complies with the Class B limits for radio interference as specified in the Canadian Department of Communications Radio Interference Regulations Cet appareil est conforme aux norms de Classe B d interference radio tel que specifie par le Minister...

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