1. INTRODUCTION
1.1 What is the Braille Sense U2?
1.2 Hardware
1.2.1 The Top Panel
1.2.2 The Right Panel
1.2.3 The Left Panel
1.2.4 The Rear Panel
1.2.5 The Front Panel
1.3 Hardware Specifications
1.4 Memory on the Braille Sense U2

1. Introduction

1.1 What is the Braille Sense U2?
The Braille Sense U2 is a Braille note taker developed and manufactured by HIMS, for people who are blind and visually impaired. The Braille Sense U2 has a variety of powerful capabilities, including the following.
1. Read TXT, BRF, RTF, PDF, EPUB, and Microsoft Word, Excel and Powerpoint files. Take notes or create formatted documents and e-mail, print or emboss them.
2. Utilize social networking services, Web Browsing, RSS and e-mail via Wi-fi or Ethernet.
3. Play media, DAISY books, FM Radio and YouTube videos.
4. Organize your Appointments, contacts and your own custom databases.
5. Perform scientific calculations, set alarms and explore the Lunar and solar calendars.
6. Share files with other people and other devices using Dropbox, ActiveSync, mass Storage mode or via a network.
7. Use the Braille Sense U2 as a USB or Bluetooth Braille display with a compatible screen reader, such as Window-Eyes, JAWS, NVDA, SuperNova, System Access, VoiceOver for Mac and iOS and TalkBack for Android.
8. Use the included Google Maps application, built-in GPS sensor and digital compass to navigate independently without the need for external devices. 

1.2 Hardware
To get the most from your Braille Sense U2, it is important to become oriented to the buttons and ports on your Braille Sense U2 as well as learning their functions. 
This section explains the hardware configuration of the Braille Sense U2. The Braille Sense U2 is 10 inches long by 6.1 inches wide by 1.9 inches high. The bottom of the unit contains rubber feet in order to prevent slipping while you are using it. Place the Braille Sense U2 on a desk or table top with the Braille display nearest you. Its shape resembles a small, thin rectangular box. This section of the manual describes each side of the Braille Sense U2 and the basic function(s) of each button and port. We will discuss the panels in the following order: top panel, right panel, left panel, rear panel, and front panel.

1.2.1 The Top Panel
On the top face of the Braille Sense U2 is located a 9 key Perkins-style keyboard, consisting of Braille dots 1:6, "SPACE", "BACKSPACE", and "ENTER". When you are typing, you should place your fingers on these 9 Perkins-style keys in the following manner:
Place your index finger, middle finger, ring finger, and pinky finger of your left hand on the left four buttons. Then, place your index finger, middle finger, ring finger, and pinky finger of your right hand on the right four buttons. Finally, place both of your thumbs on the spacebar. 
The button where you placed your left index finger corresponds with dot one in Braille. The button that your left middle finger is on corresponds to dot two, and the button under your left ring finger corresponds to dot three. The button on which your left pinky finger is placed is the Backspace key.
The button under your right index finger corresponds with dot four in Braille. The button under your right middle finger is dot five, and the button on which your ring finger is placed corresponds with dot six in Braille. The button on which your right pinky is placed is the Enter key. And, the long bar shaped button under your thumbs is the spacebar.
On the same row as the Space bar are 4 rectangular function keys: two to the left of the spacebar, and two to the right. Moving from left to right, the key to the far left is the "F1" key, and the key to the right of it is the "F2" key. The key to the right of the spacebar is the "F3" key, and the key on the far right is the "F 4" key.
Below the keyboard is a 32 cell Braille display. Above the Braille display, there are 32 small, oval-shaped buttons corresponding to each of the 32 Braille cells. These buttons are called cursor routing keys. When you are editing documents, you can use these keys to route your cursor to the character of the corresponding Braille cell. The cursor routing keys also serve as shortcut keys for navigating lists and groups of fields in certain places on the unit.
On each side of the Braille display are two capsule shaped keys. These are the "UP" and "DOWN" scroll keys.  The scroll keys are used to scroll the Braille display through menus, fields, lists or text. You can use the scroll keys to scroll by display length, paragraph, line, sentence, or character. You can set the left and right sets of scroll keys independently in the "Global Options". (See chapter 3.) 
Near the top center of the unit's top panel, is a liquid crystal display (LCD). The LCD displays the output of the unit visually so that a sighted person can see what is shown on the Braille Sense U2. STEREO speakers are located one on each side of the LCD for audio output.
To the right of the LCD, along the top edge of the unit, there are 4 LED lights. The far left LED light shows wireless LAN status; when wireless LAN is on, this LED light turns blue. The next LED indicates Bluetooth status; again, when Bluetooth is activated, this LED light turns blue. The third LED light shows the status of the GPS receiver; when you are running Sense Navigation, the LED turns blue (Only available after purchase and download of a license and map data for Sense Navigation). The LED light on the far right indicates power status. When the Braille Sense U2 is powered on, the LED turns red. These LED lights help a sighted person easily determine the status of the unit when working with students. This helps them quickly evaluate whether options need to be changed for accomplishing current tasks, or if options are activated unnecessarily, and can be turned off to save power, etc.

1.2.2 The Right Panel
On the right panel, there is a recessed rectangular section containing 2 ports. The port nearest the front of the unit is the USB OTG port. You can connect your Braille Sense U2 to a personal computer via this USB port, and use it as a Braille terminal for the computer, transfer files to and from the computer, or to synchronize your calendar and contacts with Outlook.
Behind the USB OTG port is the AC adapter jack. To charge the unit's battery or use the Braille Sense U2 on AC power, plug the small, round end of the AC adapter in to this jack, and plug the larger box-like end in to a standard AC electrical outlet. 
Near the rear of the right panel is a 3-position slide switch. This is the key "Lock" switch. This switch is discussed in more detail in the next section. 

1.2.3 The Left Panel
The left panel of the Braille Sense U2 contains a rectangular recessed section with 3 things. Nearer the front of the unit are 2 full-sized USB host ports. Use these ports to connect a USB thumb drive for auxiliary storage or a USB keyboard or printer.
Nearer the rear of the unit, is the "SD" slot, used for housing an SD (secure digital) card in the unit, also for additional storage. 

* Note: if you attempt to connect the Braille Sense U2 to a computer via a USB hub which is combined with other devices such as a card reader or hard drive, the Braille Sense U2 is not recognized by your computer as a mass storage device or a Microsoft Windows mobile device by ActiveSync. You must connect the Braille Sense U2 directly to your computer, or use a USB hub containing only USB host ports. 

1.2.4 The Rear Panel
On the far left of the rear panel is a small, round recess, with a dot-like button inside it. This is the "RESET" button. If your unit is not responding properly, you can press this button to force a soft reboot of the unit. 
* NOTE: do NOT press the "RESET" button for more than 5 seconds.  It takes about fifteen seconds for your unit to complete the reboot process. You can also perform a soft reset by pressing F2-F3-1-2-3-4-5-6. 
If you hold down dots 1-2 with the "RESET" button, while the power is on, the Braille Sense U2 reboots without speech.
To the right of the "RESET" button, is the local area network (LAN) port. If you connect the Braille Sense U2 to an Ethernet interface, you can connect to the Internet, allowing you to browse websites as well as send and receive e-mail.
 To the right of the LAN port is another USB host port. Next to the USB port is a video output (VGA) port. The video output port can be used to display the output of the Braille display on a standard video monitor. To use this port, you must turn it on from in the "Global Options" menu. This port is very beneficial when using the Braille Sense U2 in educational settings.
On the far right of the rear panel, is a rectangular cavity used for containing the detachable battery. The battery is packaged separately from the unit when the Braille Sense U2 is shipped. Insert the battery into this rectangular slot until you feel it click into place.  To remove the battery, locate the triangular-shaped latch on the underside of the unit. Using your left hand, pull the latch to the right, and use your right hand to pull the battery out of the compartment.

1.2.5 The Front Panel
On the far left of the front panel is an emblem displaying the location of the GPS antenna. To the right of the "GPS" emblem, is the stereo microphone jack, used for connecting an external microphone or line level recording source. To the right of the microphone jack is the stereo headphone jack. To the right of the headphone jack is another 3-position slide switch. This is the "Media Mode" switch, and determines which type of media the media buttons control. This switch is explained in more detail in the next section. 
To the right of the "Media Mode" switch, are five buttons of varying shapes. These buttons control media playback. As explained above, the type of content controlled by these buttons depends on the position of the "Media Mode" switch. These buttons can control media playback, DAISY playback, or the FM radio. These five buttons are explained further in the FM Radio, Daisy and Media chapters of this manual.
To the right of the media buttons is the on/off switch. To turn on the unit, push the switch to the right. To turn off the unit, repeat this action.
Congratulations! You are now familiar with the basic functions of the buttons and ports of the Braille Sense U2. The rest of the manual discusses each function in greater detail to help you maximize the potential of your Braille Sense U2.

1.3 Hardware Specifications 
1. Operating system: Windows CE 6.0.
2. Flash memory: 32GB.
3. RAM: 256MB.
4. CPU: Mobile CPU (1GHz). 
5. Battery: Lithium Ion (detachable), backup battery and clock-battery installed.
6. Battery running time: About 17 hours (with Braille, TTS and LCD turned on, middle volume of internal speaker)
7. Keyboard: 9 key Perkins-Style Braille keyboard, 4 function keys, 32 cursor routing keys, 4 scroll buttons.
8. Additional buttons and switches: key lock switch, audio mode switch, reset button, 5 audio buttons.
9. Braille display: 32 refreshable Braille cells.
10. Video output: VGA output, LCD.
11. Network: 10/100 based Ethernet.
12. Wireless: WLAN (IEEE802.11 b/g/n), Bluetooth ver.2.0+EDR.
13. Sensor: 6-axis motion sensor
14.  GPS: Internal GPS receiver
15.  Interface: 1 USB Slave(ver.2.0), 3 USB Master(ver.2.0), 1 SD slot
16.  Sound: Internal stereo speakers, stereo headphone jack.
17.  Voice recording: Internal microphone, external microphone jack.
18.  Vibrate motor is installed

1.4 Memory on the Braille Sense U2
The Braille Sense U2 has 256MB of RAM (random access memory) and 32GB of flash memory. The RAM is memory reserved for running programs. RAM is a temporary storage area for any program files that are running or any currently open documents. The data in the RAM area disappears if your battery depletes, and the AC adapter is not connected. The RAM data also disappears when Braille Sense U2 reboots for any reason. This means, if you have an open document which you have not saved, the unsaved data disappears.
