applied radar, inc. www.appliedradar.com AR8012 21 + 4 vme usb hub for price, delivery, and to place orders, please contact applied radar: 315 commerce park road , north kingstown, ri 02852 phone: 401 - 295 - 0062 fax: 401 667 - 2912 - 1 - revised 01/07 /20 12 typical applications ? test equipment ? hardware control ? networking ? equipment integration features ? 21 front panel usb a ports ? 4 additional usb ports on pcb ? vme 6u size b ? self powered usb hub ? usb 2.0 compatible ? built - in over c urrent protection ? windows & linux general description the AR8012 is a low cost vme 6u size b usb hub board . the AR8012 offers 21 + 4 full power (500ma) ports. i ndividual port management is employed to ensure that each device is powered off should an over current condition be sensed. on board and front panel leds indicate vital information such as regulated power and hub status. the vme usb hub board only uses power and ground pins on the vme backplane connec tors. power can alternatively be delivered through the molex connector located on the board for testing outside the vme chassis. (further information shown below) front panel electrical specifications parameter min. typ. max. units operating voltage 5 vdc output current per port 500 ma available usb ports 21 +4 ports http://www..net/ datasheet pdf - http://www..net/
applied radar, inc. www.appliedradar.com AR8012 21 + 4 vme usb hub for price, delivery, and to place orders, please contact applied radar: 315 commerce park road , north kingstown, ri 02852 phone: 401 - 295 - 0062 fax: 401 667 - 2912 - 2 - revised 01/07 /20 12 interface connectors parameter connector type location host usb b front panel usb hub ports(21) usb a front panel usb hub ports(4) 100 mil headers t op, central section vme connectors vme back panel alternative power molex micro - fit top , northwest section block diagram http://www..net/ datasheet pdf - http://www..net/
applied radar, inc. www.appliedradar.com AR8012 21 + 4 vme usb hub for price, delivery, and to place orders, please contact applied radar: 315 commerce park road , north kingstown, ri 02852 phone: 401 - 295 - 0062 fax: 401 667 - 2912 - 3 - revised 01/07 /20 12 individual port power management a key feature in the AR8012 is the individual over current protection provided to each port . this makes the AR8012 more robust then many hubs which utilize the ganged port management scheme. in ganged port management, a device that causes an over current condition will shut down several channels simultaneously because multiple downstream ports ar e tied to a single protection circuit. in individual port power management, each port has it s own over current protection . if one channel experiences an over current fault, then that channel will be powered down, thus protecting the device while allowing the operation of every other channel. led functions there are six leds located on this board with important status information for the user. the led on the front panel con sists of four separate leds . as labeled on the front panel, the leds represent the status of hubs a , b, c and the host hub (h) . for example, if the AR8012 is plugged in and has been enumerated, the four leds will display green indicating that the hubs are configured and the board is awaiting an input device. if the host pc is disconnect ed, then the four front panel leds will display all red indicating that the host has been d isconnected. in addition to the four front panel leds, located in the top left hand corner of the board are two more leds. when the leds are green , it indicates that the AR8012 is properly receiving t he 5 volts from the vme chassis or the m olex connector and the 3.3 volts is being regulated successfully . if the leds are off, it could indicate a blown fuse , or a n input voltage problem. on board 4 usb connections the AR8012 offers an additional 4 usb connections for a total of 25 located near the center of the board . similar to the front panel ports, these 4 connection s offer the same individual power protection. the spacing between pins is 100 mils, and the material is gold plated. standard usb mother board pin out is used, so that commercially available cables can be used to access these ports. http://www..net/ datasheet pdf - http://www..net/
applied radar, inc. www.appliedradar.com AR8012 21 + 4 vme usb hub for price, delivery, and to place orders, please contact applied radar: 315 commerce park road , north kingstown, ri 02852 phone: 401 - 295 - 0062 fax: 401 667 - 2912 - 4 - revised 01/07 /20 12 e xternal power option for operation outside of the vme chassis, the AR8012 offers a method for powering the board without the vme backplane. all 8 pins of the connector should be used to provide adequate current to the board for full power operation. parameter product number header molex 43045 - 0813 r eceptacle molex 43025 - 0800 header pin out programming interface no additional software or programming is needed to use this device. the AR8012 has been tested and verified operational on windows xp, windows vista, windows 7, linux kernel versions 2.6.24 (32 - bit debian) and 2.6.35 (64 - bit fedora). absolute maximums input voltage 5. 5 vdc electrostatic sensitive device observe hand ling precautions operating temperature 0 to + 70 o c storage temperature - 40 to +125 o c ordering information order applied radar p art number: ar 8012 http://www..net/ datasheet pdf - http://www..net/
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