Aaeon PCM-5890 Скачать руководство пользователя

Страница: 84 / 94

Appendix C Pin Assignments 75

PC/104 connectors (CN1, CN2)

PCM-5890 PC/104 connectors

Pin

Signal (CN1)

Signal (CN2)

Number RowA

RowB

RowA

RowB

—

IOCHCHK

SBHE

MEMCS16

SD7

RESETDRV LA23

IOCS16

SD6

+5V

LA22

IRQ10

SD5

IRQ9

LA21

IRQ11

SD4

-5V

LA20

IRQ12

SD3

DRQ2

LA19

IRQ15

SD2

-12V

LA18

IRQ14

SD1

ENDXFR

LA17

DACK0

SD0

+12

MEMR

DRQ0

IOCHRDY

(KEY)

MEMW

DACK5

AEN

SMEMW

SD8

DRQ5

SA19

SMEMR

SD9

DACK6

SA18

IOW

SD10

DRQ6

SA17

IOR

SD11

DACK7

SA16

DACK3

SD12

DRQ7

SA15

DRQ3

SD13

+5V

SA14

DACK1

SD14

MASTER

SA13

DRQ1

SD15

SA12

REFRESH

(KEY)

SA11

SYSCLK

—

SA10

IRQ7

—

SA9

IRQ6

—

SA8

IRQ5

—

SA7

IRQ4

—

SA6

IRQ3

—

SA5

DACK2

—

SA4

—

SA3

BALE

—

SA2

+5V

—

SA1

OSC

—

SA0

—

Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com

Содержание PCM-5890

Страница 1: ...service in house repair center WE BUY USED EQUIPMENT Sell your excess underutilized and idle used equipment We also offer credit for buy backs and trade ins www artisantg com WeBuyEquipment REMOTE IN...

Страница 2: ...PCM 5890 All in One Single Board Pentium Computer with SVGA Ethernet and 4 serial ports Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Страница 3: ...E LIMITS ARE DESIGNED TO PROVIDE REASONABLE PROTECTION AGAINTST HARMFUL INTERFERENCE WHEN THE EQUIPMENT IS OPERATED IN A COMMERCIAL ENVIRONMENT THIS EQUIP MENT GENERATES USES AND CAN RADIATE RADIO FRE...

Страница 4: ...rademark of VIA Technology Inc AMD is a trademark of Advanced Micro Devices Inc Award is a trademark of Award Software International Inc Cyrix is a trademark of Cyrix Corporation IBM PC AT PS 2 and VG...

Страница 5: ...VGA BIOS and Ethernet utility programs 1 utility disk with Ethernet drivers 2 utility disks with PCI SVGA utility programs and drivers for Windows 3 1 Windows 95 and OS 2 1 utility disk with Boot ROM...

Страница 6: ...U voltage setting J3 J4 14 CMOS setup J7 14 Buzzer enabled disabled J18 15 Installing DRAM SIMMs 15 Installing SIMMs 15 Selecting cache module type J8 16 Cache module installation 16 IDE hard drive co...

Страница 7: ...timer enable disable J25 25 Watchdog timer action J23 J24 25 Chapter 3 Software Configuration 27 Introduction 28 Utilitydisk 28 VGA display software configuration 30 Connections for four standard LCDs...

Страница 8: ...5 PCI Panel CRT controller Display Drivers and Utilities 57 Software drivers 58 Hardware configuration 58 Necessary prerequisites 59 Before you begin 59 WindowsTM 95 60 Driver installation 60 Windows...

Страница 9: ...Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Страница 10: ...Information This chapter gives background informa tion on the PCM 5890 Sections include Card specifications Card layout and dimensions C H A P T E R Artisan Technology Group Quality Instrumentation G...

Страница 11: ...nd bus master modes Up to two IDE devices can be connected including large hard disks CD ROM drives tape backup drives and other IDE devices The PCM 5890 also features power management to minimize pow...

Страница 12: ...mpatible One PCI expansion slot Built in bus master PCI IDE controller supports two IDE devices large hard disk CD ROM tape backup etc Supports both normal and EDO type DRAM from 1 MB to 64 MB of DRAM...

Страница 13: ...s Floppy disk drive interface Supports up to two floppy disk drives 3 720 KB 1 44 MB and 2 88 MB and or 5 360 KB or 1 2 MB Parallel port Configured to LPT1 LPT2 LPT3 or disabled Sup ports Multimode pa...

Страница 14: ...resolution Ethernet Interface PCI Bus Chipset REALTEK RTL8029 PCI Local bus Ethernet controller Ethernet interface Software compatible with Novell NE 2000 driver On board 10 Base T 10 Base2 and 10 Bas...

Страница 15: ...ns PCM 5890 dimensions Dimensions in mm 95 25 135 89 140 97 146 05 5 08 40 64 97 16 100 97 119 38 174 63 177 17 193 04 198 12 203 20 5 08 9 53 3 56 Artisan Technology Group Quality Instrumentation Gua...

Страница 16: ...are including instructions on setting jumpers and connecting peripher als switches and indicators Be sure to read all the safety precautions before you begin the installation procedure C H A P T E R A...

Страница 17: ...CPU voltage J5 Ethernet LED CRSL J6 Ethernet LED BNCL J7 CMOS setup J8 SRAM type cache size selection J9 COM2 RS 232 422 485 selection J10 CPU clock setting J11 CPU clock setting J12 CPU clock setting...

Страница 18: ...l connector CN7 Peripheral power connector 5V 12V CN8 Keyboard and mouse connector CN9 Ethernet 10BASE 2 10BASE 5 AUI connec tor CN10 Ethernet 10BASE T connector CN11 Serial port RS 232 422 485 CN12 P...

Страница 19: ...ser s Manual Locating jumpers J1 J2 J4 J3 J5 J6 J7 J9 J21 J22 J20 J19 J23 J24 J25 J13 J14 J15 J16 J17 J18 J8 J10 J11 J12 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www a...

Страница 20: ...1 CN13 BUS MASTER ENHANCED IDE INTERFACE CN14 FDD INTERFACE CN15 POWER CONNECTOR CN8 KEYBOARD MOUSE CONNECTOR CN7 PERIPHERAL POWER SUPPLY CN1 CN2 PC 104 CONNECTOR CN6 FRONT PANEL CN5 FAN POWER CN4 FLA...

Страница 21: ...e three pins labeled 1 2 and 3 In this case you would connect either pins 1 and 2 or 2 and 3 The jumper settings are schematically depicted in this manual as follows A pair of needle nose pliers may b...

Страница 22: ...the CPU remove the old CPU from the socket If it is difficult to remove you may find chip lubricant designed for pin grid array devices PGAs and a chip puller helpful Both are available at electronic...

Страница 23: ...0 MHz 60 MHz 66MHz J10 J11 J12 CPU frequency ratio J1 and J2 CPU frequency ratio System frequency 2 5x 2x 3x 1 5x J1 J2 CPU voltage setting J3 J4 J3 and J4 must be set to match the CPU type The chart...

Страница 24: ...lling SIMMs NOTE The modules can only fit into a socket one way Their chips must face the CPU and their gold pins must point down into the SIMM socket 1 Ensure that all power sources are disconnected...

Страница 25: ...he pipelined burst RAM in the Pentium class system Refer to the table below to configure your cache module types Syn chronous SRAM SYNC or Asynchronous SRAM ASYNC L2 Cache Configuration Cache Module T...

Страница 26: ...nd of the cable to CN13 Make sure that the red or blue wire corresponds to pin 1 on the connector which is labeled on the board on the right side 2 Plug the other end of the cable to the Enhanced IDE...

Страница 27: ...he floppy drive s You can use only one connector in the set The set on the end after the twist in the cable connects to the A drive The set in the middle connects to the B drive 3 If you are connectin...

Страница 28: ...J17 You can select ECP EPP DMA channel by setting J13 and J14 ECP EPP DMA channel DMA1 DMA3 J13 J14 default setting Keyboard and PS 2 connector CN8 The PCM 5890 board provides a keyboard connector whi...

Страница 29: ...e switch will activate a reset The switch should be rated for 10 mA 5 V If you need to make your own cable you can find the pin assign ments for the card s connector in Appendix C Flat panel display c...

Страница 30: ...CM 5890 offers four serial ports three RS 232 and one RS 232 422 485 These ports let you connect to serial devices a mouse printers etc or a communication network Serial port RS 232 422 485 The serial...

Страница 31: ...e PCM 5890 s PCI SVGA interface can drive conventional CRT displays and is capable of driving a wide range of flat panel displays including electroluminescent EL gas plasma passive LCD and active LCD...

Страница 32: ...rp 64C142 and Planar EL Display Ethernet configuration The PCM 5890 is equipped with a high performance 32 bit PCI bus Ethernet interface which is fully compliant with IEEE 802 3 10Mbps CSMA CD standa...

Страница 33: ...2 and 10BASE 5 coax connec tions are made via an attachment unit interface or AUI CN9 This consists of a 16 pin dual in line male header 10BASE T connector CN10 10BASE T connects to the PCM 5890 via a...

Страница 34: ...hex to enable and refresh the watchdog or address 043 to disable the watchdog For information on programming the watchdog timer see Appendix A Configure the watchdog timer to be enabled or disabled vi...

Страница 35: ...26 PCM 5890 User s Manual Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Страница 36: ...you how to configure the card to match your applica tion requirements AWARD System BIOS is covered in Chapter 4 Sections include LCD display configuration Connections for four standard LCDs Ethernet...

Страница 37: ...Directories and files on the disk are as follows README DOC NET Dir RSET8029 EXE DISPLAY Dir AWDFLASH EXE 5890_SYS BIN 5890_CRT BIN 5890_TFT BIN 5890_STN BIN 5890_STN 512 5890_MON BIN 5890_EL BIN CBRO...

Страница 38: ...N 512 512 KB VRAM Supports 640 x 480 color STN DD 8 16 bit displays Sharp LM64C142 NOTE This BIOS does not support simultaneous CRT and flat panel display with 512 KB VRAM 5890_MON BIN Supports 640 x...

Страница 39: ...gured completely via the software utility so you don t have to set any jumpers Configure the VGA display as follows 1 Apply power to the PCM 5890 with a color TFT display attached This is the default...

Страница 40: ...wish to save the existing configuration before changing it Then type the name under which you want to save the current configuration 5 The prompt will then ask Are you sure to program Press Y if you...

Страница 41: ...ame CN1 1 S 36 FLM CN1 2 CP1 38 LP CN1 3 CP2 35 SHFCLK CN1 4 DISP 5 5 V CN1 5 VDD 6 5 V CN1 6 VSS 3 GND CN1 7 VEE 17 V external power CN1 8 DU0 12 P3 CN1 9 DU1 11 P2 CN1 10 DU2 10 P1 CN1 11 DU3 9 P0 C...

Страница 42: ...6 D2 23 P14 7 NC 8 D3 24 P15 9 NC 10 D4 17 P8 11 NC 12 D5 18 P9 13 NC 14 D6 19 P10 15 GND 4 GND 16 D7 20 P11 17 GND 4 GND 18 VCLK 42 ASHFCLK 19 GND 4 GND 20 BLANK 21 GND 8 GND 22 HS 37 M 23 NC 24 VS 3...

Страница 43: ...P4 8 Vss 4 GND 9 Vss 8 GND 10 XCK 35 SHFCLK 11 DL0 24 P15 12 Vcon Contrast Adjust 13 DL1 23 P14 14 Vdd 5 5V 15 Vss 33 GND 16 Vdd 6 5V 17 DL2 22 P13 18 DISP 6 5V 19 DL3 21 P12 20 NC 21 Vss 34 GND 22 D...

Страница 44: ...GND 8 GND 8 GND 8 GND 9 R0 27 P18 10 R1 28 P19 11 R2 29 P20 12 GND 8 GND 13 R3 30 P21 14 R4 31 P22 15 R5 32 P23 16 GND 39 GND 17 GND 39 GND 18 GND 39 GND 19 G0 19 P10 20 G1 20 P11 21 G2 21 P12 22 GND...

Страница 45: ...ued NL8060AC26 PCM 5890 CN 4 Pin No Function Pin No Function 33 B3 14 B5 34 B4 15 P6 35 B5 16 P7 36 GND 41 GND 37 DE 37 M 38 VCC 43 VCC 39 VCC 44 VCC 40 VCC 5 VCC 41 MODE Artisan Technology Group Qual...

Страница 46: ...SS 3 GND CN1 7 VEE 27 V external power CN1 8 DU0 20 P11 CN1 9 DU1 19 P10 CN1 10 DU2 18 P9 CN1 11 DU3 17 P8 CN1 12 DU4 12 P3 CN1 13 DU5 11 P2 CN1 14 DU6 10 P1 CN1 15 DU7 9 P0 CN2 1 VSS 4 GND CN2 2 DL0...

Страница 47: ...hange by using the Up and Down keys To change a selected item press Enter and a screen will appear with the avail able options Highlight your option and press Enter Each highlighted option has a helpf...

Страница 48: ...Chapter 3 Software Configuration 39 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Страница 49: ...40 PCM 5890 User s Manual Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Страница 50: ...r 4 Award BIOS Setup 41 4 Award BIOS Setup This chapter describes how to set BIOS configuration data C H A P T E R Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisan...

Страница 51: ...heck the current system configuration against the values stored in the card s CMOS memory If they don t match the program outputs an error message You will then need to run the BIOS setup program to s...

Страница 52: ...LTS ESC Quit Select Item F10 Save Exit Setup Shift F2 Change Color Time Date Hard Disk Type AWARD BIOS setup Setup program initial screen Award s BIOS ROM has a built in Setup program that allows user...

Страница 53: ...enu screen CMOS setup screen R O M P C I I S A B I O S 2 A 5 L 9 A K D S T A N D A R D C M O S S E T U P A W A R D S O F T W A R E I N C Date mm dd yy Mon Jan 1 1996 Time hh mm ss 8 20 23 CYLS HEADS P...

Страница 54: ...I N C Esc Quit SelectItem F1 Help PU PD Modify F5 Old Values Shift F2 Color F6 Load BIOS Defaults F7 Load Setup Defaults Virus Warning Disabled Video BIOS Shadow Enabled CPUInternalCache Enabled C8000...

Страница 55: ...e gate A20 is handled The gate A20 is a device used to address memory above 1 Mbytes Initially the gate A20 was handled via a pin on the keyboard Today while keyboards still provide this support it is...

Страница 56: ...abled BOOT ROM Fucntion Disabled OnChip IDE first channel Enabled IDE HDD Block Mode Enabled IDE Primary Master PIO Auto IDE Primary Slave PIO Auto SRAM Tag Alt Bit Config 8 Tags Data Link Bus Master...

Страница 57: ...oordinates communica tions between the conventional ISA bus and the PCI bus It must be stated that these items should never need to be altered The default settings have been chosen because they provid...

Страница 58: ...able PM Control by APM Yes Video Off Option Suspend Off Video Off Method V H SYNC Blank PM Timers HDD Power Down Disable Doze Mode Disable Suspend Mode Disable PM Events VGA OFF LPT COM LPT COM HDD FD...

Страница 59: ...ULTS Settings PCI Configuration setup CPU to PCI Write Bufer Disabled PCI Master Write Buffer Disabled PCI Master Prefetch Disabled PCI Master Burst Read Disabled PCI Master Burst Write Disabled PCI B...

Страница 60: ...ur system with a PCI controller changing this allows you to specify which slot has the controller and which PCI interrupt A B C or D is associated with the connected hard drives Remember that this set...

Страница 61: ...load automatically when you turn the PCM 5890 on R O M P C I I S A B I O S 2 A 5 L 9 A K D C M O S S E T U P U T I L I T Y A W A R D S O F T W A R E I N C STANDARDCMOSSETUP PASSWORDSETTING BIOS FEATU...

Страница 62: ...or this option has been used to change the default password the user is asked for the password stored in the CMOS The screen will display the following message Enter the current password and press En...

Страница 63: ...n N Skip N Auto detect hard disk The IDE HDD AUTO DETECTION utility can automatically detect the IDE hard disk installed in your system You can use it to self detect and or correct the hard disk type...

Страница 64: ...ility HDD low level format screen SIZE CYLS HEAD PRECOMP LANDZ SECTOR MODE Primary Master 54 996 16 65535 995 63 NORMAL Primary Slave 0 0 0 0 0 0 AUTO Secondary Master 0 0 0 0 0 0 AUTO Secondary Slave...

Страница 65: ...l check this every time you turn your system on and compare this to what it finds as it checks the system This record is required for the system to operate Exit without saving Selecting this option an...

Страница 66: ...Controller Display Drivers and Utilities This chapter provides information about Driver types and installation Software utility installation and use C H A P T E R Artisan Technology Group Quality Ins...

Страница 67: ...standard modes The purpose of the enclosed software drivers is to take advantage of the extended features of the CHIPS VGA Flat Panel CRT controller Hardware configuration Some of the high resolution...

Страница 68: ...er to the DOS or OS 2 user reference guides for more information before you proceed with the installation Before you begin Before you begin the driver software installation you should make backup copi...

Страница 69: ...allation is complete the Change Display Type window will reappear Click on Close to close the window Then the Display Properties window will reappear Click on Apply Restart the system for new settings...

Страница 70: ...e installed in the Windows subdirectory 3 Press ENTER to complete the installation Once completed you can find the icon ChipsCPL under the Control Panel The ChipsCPL icon allows you to select and load...

Страница 71: ...ve 3 Type SETUP ENTER to run the driver SETUP program Press any key to get to the applications list 4 Using the arrow keys select Windows Version 3 1 and press the ENTER key Press the ENTER key to sel...

Страница 72: ...ps 4 and 5 from the previous page Besides the special display drivers marked by an asterisk you should be able to use the following standard drivers VGA 640 x 480 16 colors Super VGA 800 x 600 16 colo...

Страница 73: ...Once the Install Program is completed do a system shutdown and reboot 5 After the system has rebooted follow these instructions OS 2 Version 3 Go to the System Setup folder and run Selective Install...

Страница 74: ...ed utility to select resolutions and color depth It is a Control Panel Applet with its own icon that is auto matically installed when installing CHIPS Windows 3 1 linear driv ers The Control Panel ico...

Страница 75: ...tion DPI ALT P allows you to select a large or small font DISPLAY ALT D allows you to select the display type from the following CURSOR ANIMATION ALT A allows you to select an animated cursor instead...

Страница 76: ...tchdog timer that resets the CPU or generates an interrupt if processing comes to a standstill for whatever reason This feature ensures system reliability in industrial standalone or unmanned environm...

Страница 77: ...terrupted The timer will then automatically reset the CPU or invoke an IRQ and data processing will continue normally You must write your program so that it reads I O port address 443 at an interval s...

Страница 78: ...ng PC 104 Modules 69 B Installing PC 104 Modules This appendix gives instructions for installing PC 104 modules A P P E N D I X Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURC...

Страница 79: ...les 1 Remove the PCM 5890 from your system paying particular attention to the safety instructions already mentioned above 2 Make any jumper or link changes required to the CPU card now Once the PC 104...

Страница 80: ...ng Diagram PC 104 module dimensions inches 5 0 200 0 0 0 200 3 350 3 550 0 200 3 575 3 250 0 300 3 775 3 575 CPU Card PC 104 Module Female Male PC 104 Mounting Support Artisan Technology Group Quality...

Страница 81: ...72 PCM 5890 User s Manual Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Страница 82: ...ector Front panel connector Main power connector 10BASE 2 10BASE 5 AUI connector RS 232 422 485 serial port connector Keyboard and mouse connector 10BASE T connector Peripheral power connector IDE con...

Страница 83: ...y connector CN4 PCM 5890 Flat panel display connector Pin Function Pin Function 1 12 V 2 12 V 3 GND 4 GND 5 Vcc 6 Vcc 7 ENAVEE 8 GND 9 P0 10 P1 11 P2 12 P3 13 P4 14 P5 15 P6 16 P7 17 P8 18 P9 19 P10 2...

Страница 84: ...DXFR LA17 DACK0 9 SD0 12 MEMR DRQ0 10 IOCHRDY KEY MEMW DACK5 11 AEN SMEMW SD8 DRQ5 12 SA19 SMEMR SD9 DACK6 13 SA18 IOW SD10 DRQ6 14 SA17 IOR SD11 DACK7 15 SA16 DACK3 SD12 DRQ7 16 SA15 DRQ3 SD13 5V 17...

Страница 85: ...T SWITCH GND 8 RESET SWITCH Peripheral power connector CN7 PCM 5890 Peripheral power connector Pin Function 1 GND 2 5 V 3 GND 4 12 V 10BASE 2 10BASE 5 AUI connector CN9 PCM 5890 Ethernet 10BASE 2 10BA...

Страница 86: ...dix C Pin Assignments 77 PCM 5890 Ethernet 10BASE 2 10BASE 5 AUI connector Pin Signal 13 N C 14 N C 15 N C 16 5 V Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisant...

Страница 87: ...COM3 COM4 RS 232 422 485 serial port PIN SIGNAL PIN SIGNAL COM1 1 DCDA 2 DSRA 3 RXDA 4 RTSA 5 TXDA 6 CTSA 7 DTRA 8 RIA 9 GND 10 N C COM2 11 DCDB 12 DSRB 422RXD 422TXD 485DATA 13 RXDB 14 RTSB 422RXD 4...

Страница 88: ...t 10BASE T connector CN10 PCM 5890 Ethernet 10BASE T connector Pin Signal 1 VCC 2 CRS LED 3 RCV 4 RCV 5 BNC LED 6 GND 7 N C 8 GND 9 XMT 10 XMT Main power connector CN15 PCM 5890 Main power connector P...

Страница 89: ...12 DATA 12 13 DATA 2 14 DATA 13 15 DATA 1 16 DATA 14 17 DATA 0 18 DATA 15 19 SIGNAL GND 20 N C 21 N C 22 GND 23 IO WRITE 24 GND 25 IO READ 26 GND 27 IO CHANNEL READY 28 ALE 29 N C 30 GND 31 IRQ14 32 I...

Страница 90: ...l Pin Signal 1 GND 2 DENSITY SELECT 3 GND 4 N C 5 GND 6 DRIVE TYPE 7 GND 8 INDEX 9 GND 10 MOTOR 0 11 GND 12 DRIVE SELECT 1 13 GND 14 DRIVE SELECT 2 15 GND 16 MOTOR 1 17 GND 18 DIRECTION 19 GND 20 STEP...

Страница 91: ...0 Parallel port connector Pin Signal 1 STROBE 2 AUTOFD 3 D0 4 ERR 5 D1 6 INIT 7 D2 8 SLCTINI 9 D3 10 GND 11 D4 12 GND 13 D5 14 GND 15 D6 16 GND 17 D7 18 GND 19 ACK 20 GND 21 BUSY 22 GND 23 PE 24 GND 2...

Страница 92: ...Appendix D Optional Extras 83 D Optional Extras A P P E N D I X Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Страница 93: ...r e T r o t c e n n o c 0 5 3 0 4 4 1 0 7 1 E D I 8 1 d n a 5 2 3 1 N C e l a m e f m m 2 n i p 4 4 m m 0 5 3 C D I 0 0 5 0 4 4 1 0 7 1 P 0 4 E D I 5 3 3 1 N C m m 4 5 2 n i p 0 4 m m 0 0 5 C D I e l...

Страница 94: ...service in house repair center WE BUY USED EQUIPMENT Sell your excess underutilized and idle used equipment We also offer credit for buy backs and trade ins www artisantg com WeBuyEquipment REMOTE IN...

Результаты поиска

Содержание PCM-5890

Отзывы:

Похожие инструкции для PCM-5890

Бренды по названию

Популярные бренды

Aaeon PCM-5890, Руководство пользователя

Результаты поиска

Содержание PCM-5890

Отзывы:

Похожие инструкции для PCM-5890

Бренды по названию

Популярные бренды