!!!!!!!!!!!! ! ! ! ! Zero4U 4-Port USB Hub for Raspberry Pi Zero User Manual ! ! ! Copyright!©!2016!UUGear!s.r.o.! ! All!rights!reserved.
!!!!!!!!!!!! Table!of!Content! Product!Overview!.................................................................................................!1! Package!Content!..................................................................................................!2! Specifications!.......................................................................................................!3! About!Powering!Mode!..........................................................................................
!!!!!!!!!!!! Product!Overview! Zero4U!is!a!4HPort!USB!hub!designed!for!Raspberry!Pi!Zero.!It!extends!the!only!data! micro! USB! port! on! Raspberry! Pi! Zero! and! gives! you! 4! standard! USB! ports,! which! allows!you!to!connect!more!USB!devices!to!your!Raspberry!Pi!Zero.! The!board!size!of!this!USB!hub!is!exactly!the!same!with!Raspberry!Pi!Zero,!and!can! be!firmly!attached!under!Raspberry!Pi!Zero!backHtoHback.
!!!!!!!!!!!! 1~4)! Downstream!USB!ports! 5~8)! White!LEDs!as!activity!indicators! 9)! Two!pogo!pins!at!back!for!data!connection! 10)! Alternative!DC!5V!power!in! 11)! Two!pogo!pins!at!back!for!power!connection! 12)! Blue!LED!as!power!indicator! 13)! Upstream!USB!port! ! Package!Content! Each!package!of!this!USB!hub!contains:! !! 4Hport!USB!hub!board!x!1! !! Plastic!standoff!x!4! !! M2.5!x!10mm!screws!x!4! !! M2.
!!!!!!!!!!!! Specifications! Dimension:! ! 65mm!x!30mm!x!9mm! Weight! 14g!(net!weight!without!any!accessory)! Standards! Data!Speed! USB!Ports! LED!Indicators! Power!Mode! Output!Voltage! Output!Current! ! USB!Specification!Revision!2.0!and!1.1!compatibility! Single!Transaction!Translator!(STT)! USB!v1.1:!12!Mbps! USB!v2.
!!!!!!!!!!!! About!Powering!Mode! A!USB!hub!could!be!powered!by!the!USB!bus!(busHpower!mode),!or!be!powered!by! the!power!supply!(selfHpower!mode).!BusHpower!mode!is!simpler!as!it!does!not!need! to!have!external!power!supply,!but!it!has!quite!limited!ability!to!power!the!devices!on! the! USB! hub.! When! you! are! trying! to! power! more! devices! with! higher! current,! it! is! recommended!to!use!the!selfHpower!mode.! This!USB!hub!supports!both!busHpower!mode!and!selfHpower!mode.
!!!!!!!!!!!! Usage!Guide! To!attach!this!USB!hub!to!Raspberry!Pi!Zero,!simply!put!them!backHtoHback!together! and!place!the!plastic!standoff!between!them,!then!use!the!plastic!screws!and!nuts!to! firmly!fix!the!4!corners.! Please!make!sure!to!attach!in!the!correct!direction,!so!the!4!pogo!pins!on!the!USB! hub!can!accurately!contact!to!the!PP1,!PP6,!PP22!and!PP23!testing!pads!on!the!back! of!Raspberry!Pi!Zero.
!!!!!!!!!!!! ! In! the! picture,! the! power! supply! is! connected! to! Raspberry! Pi,! and! the! USB! hub! is! powered!by!the!USB!bus.!This!will!limit!the!output!current!to!500mA!for!all!USB!ports! on!the!hub.! If! you! also! connect! an! alternative! power! supply! to! the! USB! hub! (via! the! white! connector!on!board),!the!USB!hub!will!work!in!selfHpower!mode!and!it!can!output!up!to! 2A!current!for!USB!ports.
