L3 Systems KeyRF User manual

KeyRF
Copyright 1998-2003
L3 Systems, Inc.
Redmond, WA
KeyRF
PC Remote
Control
(Version 2.2P)

5/19/2007 L3 Systems
Table of Contents
Introduction 1
Notes of Caution 1
Antenna Assembly 2
KeyRF Components 2
Connections using PS/2 Interface 3
Connections using USB Interface 4
LED Status 5
KeyRF Default Setup 5
Running Setup 6
[B] Button Configuration 7
[A] Transmitter Address 9
Changing Transmitter Battery 9
[D] Restore Setup to Factory Settings 10
[C] View/Change Receiver Configuration 10
Disabling Combo Buttons 11
Two-Button LeftàRight & RightàLeft Operation 11
Enabling the Four-Button Shift Key 11
Multiple Transmitter Feature 12
Repeating Buttons 13
Using a PS/2 Y-Adapter 13
Pull Out Antenna for Better Range 14
KeyRF Mini-DIN Connectors 14
KeyRF Specifications 15
Warranty Inside Back Page

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Introduction
The KeyRF PC Remote Control Adapter provides a way to send
remote control signals to your PC. Some of the advanced
features of the KeyRF are:
♦Superior RF technology –Receives 360º with better
performance as compared to infrared type remotes.
♦Easy to use –Remote fits easily in your palm, or your
pocket. No pointing required. Just click wherever you are
and it works!
♦Programmable Button Actions –Different key sequences
can be sent to the PC, based on the way the buttons are
pressed on the remote transmitter.
♦Easy installation –KeyRF requires no special software to
be installed on your system. Just plug between your PC
and keyboard and you are ready to go.
♦Fast! –The KeyRF is responsive, making your presentation
move along smoothly.
Notes of Caution
Before using the KeyRF PC remote Control, a few notes of
caution should be considered.
Before connecting, or disconnecting the KeyRF, make
sure power is turned off to your computer.
Do not discharge static electricity to antenna. Touch
a grounded object first before contacting antenna.
This can lock up or even damage the receiver.

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Antenna Assembly
KeyRF Components
The two key components of a KeyRF system are the
transmitter and receiver.The KeyRF is available with either a
two-button or a four-button transmitter. When a transmitter
button is pressed, it sends a radio frequency signal to the
KeyRF receiver. The receiver then relays data to the
computer which mimics keyboard key presses. The receiver
comes pre-programmed with keystrokes assigned to the
transmitter buttons that work well to advance slides for most
presentation software. You can re-program what keystrokes
are sent to the computer for each button, and that
information will be stored in the receiver for use with any
computer.

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Connections Using PS/2 Interface
1. First, make sure the Computer/Laptop is turned off.
2. For a desktop computer, first unplug the keyboard from the computer.
3. Plug the one end of the supplied KeyRF cable into the desktop computer’s
keyboard port, or a Laptop’s external mouse/keyboard port. If your mouse
does not have a 6-pin circular connector marked with a mouse or keyboard
you may have to get a CL0014 PS/2 to USB adapter shown on the next page.
If you have an IBM Thinkpad laptop, you may need a CL0012 PS/2 Y-adapter
discussed later on in this manual.
4. Plug the other end of the KeyRF cable to the “To Computer” connector on the
KeyRF receiver.
5. If you have a desktop computer, or a laptop external keyboard, connect the
keyboard to “To Keyboard” connector on the receiver.
6. Turn your computer on, and you’re ready to go. If you are using presentation
software, run a presentation in “show” mode and try advancing slides.

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Connections Using USB Interface
1. Turn your computer on.
2. Connect one end of the supplied Mini-DIN cable to the purple connector on
the PS/2 to USB converter.
3. Connect the other end of the Mini-DIN cable to the “To Computer” connector
on the KeyRF receiver;
4. Plugthe USB connector into a USB receptacle on the computer.
5. You should notice the computer detecting the USB connection. It may ask
you to press “OK” a few times. Windows 98 may prompt for you to put in the
Windows disk for a driver. Once this is done, you should be ready to use the
KeyRF. If you are using presentation software, run a presentation in “show”
mode and try advancing slides.

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LED Status
A red status indicator located next to the keyboard connector
indicates both keyboard and remote control activity. It turns
solid red when the attached keyboard is being used. It blinks
red whenever the RF transmitter button is pressed.
KeyRF Default Setup
The KeyRF is shipped ready to use and set up as below.
The default settings work well with overhead presentation
programs. After connecting the KeyRF System (see previous
two pages), just run your presentation software in “show”
mode and use the left button or button 1 to advance your
slides. Anothereasy way to test the KeyRF is to run your
favorite editor or word processor application. When you press
the left button, or button #1 it should print a space. The right
button, or button #2 should do a backspace.

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Running Setup
If the default settings do not fit your application, custom keys
can be configured. To configure the Key RF, you must
connect and use a PS/2 keyboard to the KeyRF Receiver.
With the computer booted, make sure that you are in a text
based “shell”. On a DOS computer, that is the normal
command prompt. On a Windows computer, bring up a DOS
command shell. For Unix systems, bring up a login or Xterm
shell. For MAC Systems, run the SimpleText editor.
On the PS/2 keyboard (not the laptop keyboard), alternate
pressing Left-Shift, Right-Shift, Left-Shift, Right Shift, Left-
Shift..., until the following prompt displays:
[B] Buttons [D] Default [A] Address [C] Config [Q] Quit
Now you can enter setup data.First, a quick summary:
B -Button settings –Select this to change the keys configured for the
transmitter buttons.
D -Default Settings –Select this to return the KeyRF settings back to
factory default.
A -Address –Allows you to match the address of the transmitter.
Usually this is only used when you have more than one KeyRF
in the vicinity.
C -Configuration –This is used to configure the transmitter. Just
leave this alone.
Q -Quit –Quit configuration.

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[B] Button Configuration
If you press “B” in response to the initial setup prompt, the
following will be displayed for a 2-button transmitter:
[L]Left [R]Right [B]Both [X]Lt->Rt [Y]Rt-Lt
The 4-button transmitter prompt:
[1][2][3][4] [5]4&1 [6]4&2 [7]4&3 [8]2&1 [9]3&1 [A]3&2
The following tables show what button actions are selected by
the response to the prompt:
2-Button Transmitter 4-Button Transmitter
Buffer # ßButtons Buffer # ß
Buttons Buffer # ß Buttons
LLeft Button 1Button 1 6Buttons 4 & 2
RRight Button 2Button 2 7Buttons 4 & 3
BBoth Buttons 3Button 3 8Buttons 2 & 1
XPress Left, and while
holding, press right. 4Button 4 9Buttons 3 & 1
YPress Right, and while
holding, press left. 5Buttons 4 & 1 AButtons 3 & 2
Note: Programming either the X or Y actions will affect the way the KeyRF 2-button remote
works. If Xand Y are not programmed (factory default), the Left and right buttons will
cause the keystrokes to be sent to the PC upon pressing down the button. If X or Y are
programmed, then keystrokes will not be sent until the button is released or after a short
delay. You will notice this initial delay using auto-repeat. If you find you do not like this
mode of operation, use the [D] command to revert to factory defaults.
After selecting the button, the following prompt will appear:
[S]Single or [A]Alternating
Now press S for “Single” unless you want the button to
alternate between two actions. An example of alternating
actions is the buffer B default that alternates between
sending the “HOME” and “END” keys that directs the
presentation program to go to either the beginning or end of
the slide sequence.
If “S” for single is selected, the following prompt appears:
Press key(s), end with Right-SHIFT key:

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At this point type the keys you wish to program for the button.
(Note that the keys will not echo as you type. This is to avoid
undesired consequences of displaying special keys such as
function keys.) Generally for a single button, about 10
keystrokes can be stored. Some keys require more memory
storage, so this will vary. If you type too many keys, it will
warn you, and then you can try again. If you need a shift key
in the sequence, use the left shift key, as the right shift key
is used to detect the end of the entry.
When you press the Right-SHIFT key to end the entry, the
initial configuration prompt will appear:
[B] Buttons [D] Default [A] Address [C] Config [Q] Quit
You can now program another button, re-program the button
you just programmed, or quit (Q) and try out the new button
settings.
If you selected the Alternating (A) button programming, the
following prompt will appear:
1st, Press key(s), end with Right-SHIFT key:
Type keys to assign to button, noting that you can only have
about 10 keys total, or if evenly divided, 5 keys per alternate
button action. When you end the first set of keys with the
Right-SHIFT, then the next prompt will be:
1st, Press key(s), end with Right-SHIFT key:
When you press the Right-SHIFT key to end the entry, the
initial setup prompt will appear:
[B] Buttons [D] Default [A] Address [C] Config [Q] Quit
You can now program another button, re-program the button
you just programmed, or quit(Q) and try out the new button
settings.

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[A] Transmitter Address
The address set in the KeyRF receiver has to match the
address in the transmitter. The factory receiver setting is
COOOOOOO, where “C” signifies where a jumper is installed, and
“O” where a jumper is NOT installed
If “A” is pressed in response to the initial setup prompt, the
following prompt will appear:
Address: [C0000000]:
If you respond with only an <ENTER>, then it will keep the
current setting. Make sure you type 8 O’s or C’s.
To change the transmitter address, remove the small cover,
prying with a fingernail or a small screwdriver (like ones used
for eyeglasses). Orient the transmitter with key chain hole at
the bottom. Place jumper in a position that matches the “C”
in the address loaded into the receiver.
Changing Transmitter Battery
Both transmitters has a 12-volt A23 type battery. Make sure
that battery plus (+) terminal matches diagram on bottom of
case.

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[D] Restore Setup to Factory Settings
If the settings get messed up, a recommended procedure is to
restore the factory setup. Pressing “D” at the initial setup
prompt will restore settings to factory default. First you have
to say which type of transmitter that you have:
[2] 2-Button [4] 4-Button
Once selected, the following settings are loaded:
2 Button Transmitter 4 Button Transmitter
Address COOOOOOO Address COOOOOOO
Left Button SPACE Button 1 SPACE
Right Button BACKSPACE Button 2 BACKSPACE
Both Buttons Home/End Button 3 Home/End
Button 4 B (Blank Screen)
X and Y Not initialized 5,6,7,8,9,A Not initialized
Configuration 2SANR0 Configuration 4SANR0
[C] View/Change Receiver Configuration
This shows the version and allows changing parameters of the
RF receiver. Pressing C gives the prompt:
KeyRF V2.2P Config [2SANR0]
The following are the configuration string definitions:
By setting and enabling the repeat rate, holding down a
button will cause keys to be continuously sent to the PC. To
keep the current settings, just press [ENTER]. To restore
factory defaults, use the “D” command.

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Disabling Combo Buttons
You can get extra remote actions from your transmitter by
pressing two keys down simultaneously. This is especially
useful for the four-button model. However, some people don’t
want this feature, and it can be disabled by changing the 3rd
digit of the configuration string to a “D”.
Disable two-button combo keys: 2SDNRO
Disable two-button combo keys: 4SDNRO
Two-Button Extra Button Operation
You can get two extra remote actions on your two-button
transmitter by programming the “X” and “Y” buffers. These
actions are triggered by pressing and holding down one
button, and then pressing the other button. When you
program these buttons, the 5th digit of the configuration string
is automatically changed to an “E” enabling this feature.
Since this changes the way the remote operates, you may
want to disable this feature by setting the 5th digit of the
configuration string to an“R”.
Disable LeftàRight & RightàLeft Operation: 2SANRO
Enabling Four-Button Transmitter Shift Key
The 4th button on a four-button transmitter can be a shift key.
This allows you to get extra programmed actions without
having to press two keys at once. You press and release the
shift key (button 4) and then press another button to complete
the action. It’s recommended that the “Combo Keys” feature
be disabled when using the shift key feature. To enable this
feature, change the 4th digit of the configuration string to “Y”,
and disable combo keys by making the 3rd digit a “D”.
Enable Shift key operation: 4SDYRO
Note that to access the action assigned to button 4, you have
to press the button twice. Seven button actions are accessible
in this mode: 1, 2, 3, 4 then 4, 4 then 1, 4 then 2 and 4 then
3.

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Multiple Transmitter feature
The KeyRF supports the use of multiple transmitters without
any configuration changes provided that actions assigned to
each button are the same. The “Multiple Transmitter” feature
allows assigning a different set of actions to each transmitter.
This is done by splitting the transmitter addressing block in
half. Use the first 4 positions to match the address of the
receiver. The second 4 positions select the beginning button
buffer number in the receiver assigned to the transmitter.
Using this feature you can have up to 7 two-button
transmitters with unique buttons, or 3 four-button
transmitters. Note that the “Combo Keys” feature is usually
disabled when using this option.
Two-Button Multi-Transmitter Option Enabled: 2MDNRO
Four-Button Multi-Transmitter Option Enabled: 4MDNRO
When configuring the KeyRF receiver address, always specify
eight digits even though only the first four are matched to the
transmitter. Below are the address and buffer selection
jumper examples:
Note the changed prompt when programming buttons:
[1][2][3]...[8][9][A][B]...[E][F]
Also be aware that all transmitters operate under the same
frequency, and true simultaneous operation is not supported.

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Repeating Buttons
The KeyRF comes with buttons configured not to repeat. For
most applications this should be the preferred setting. To
enable repeating actions, load the 6th digit of the
configuration string with a number between 1 and 9, the
larger the number, the faster the repeat rate. You probably
will need to experiment with this to get the right rate for your
use.
Set the Two-Button transmitter repeat rate of 4: 2SANR4
Set the Four-Button transmitter repeat rate of 4: 4SANR4
Using a PS/2 Y-Adapter
If you want to use a PS/2 Mouse with your KeyRF Remote, a
PS/2 Y-Adapter (Part # CL0012) may be the solution. Also,
some IBM Thinkpad computers require a Y-Adapter when
connecting to external keyboard devices such as the KeyRF.
Below is a sample illustration of the use of a PS/2 Y-Adapter.
.

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Pull out Antenna for Better Range
The antenna for the KeyRF can be extended for better
reception. You can also try different placements of the KeyRF
to help improve reception.
Do not discharge static electricity to antenna. Touch
a grounded object first before contacting antenna.
This can lock up or even damage the receiver.
KeyRF Mini-DIN Connectors
The following connector shows the pin definitions for the two
6 pin DIN connectors. The KeyRF get its 5-volt power from the
PC. If a keyboard is attached, the 5-volt power is passed
through to the keyboard.
+5V
Pin 4
GND
Pin 3
CLOCK
Pin 5
Male “cable” connector
DATA
Pin 1
12
3 4
56
1
234
56
CLOCK
Pin 5
GND
Pin 3
DATA
Pin 1
+5V
Pin 4
KeyRF 6 PIN
Mini-DIN
Connector
Female “panel” connector

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KeyRF Specifications
Dimensions: Receiver 3.65L x 2.4W x 1.5H
2 Button Transmitter 2.3L x 1.4W x .65H
4 Button Transmitter 2.5L x 1.4W x .55H
Power: Receiver 5 Volt 20ma, .1 Watt
Transmitters 12 GP23A Battery, 5ma max
Temperature 0-50°C (32-120°F)
Carrier Frequency RF 315 MHz
Keyboard/Computer Ports 6 Pin Mini-DIN, Female
Range 100 feet
Computer-receiver interface PS/2, Optional USB
FCC Approval Class B

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Warranty L3 Systems guarantees this product to be free of
defects in material and workmanship for 180 days from date of
shipment to the end user. L3 Systems will repair or replace (at our
option) products within the warranty period at no charge for parts
and labor. All returns must obtain a Return of Merchandise
Authorization number (RMA) available on request from L3 Systems.
Shipping costs (plus customs and duty, if any) to and from L3
Systems must be paid by the user. Damage or defect caused by
accident, misuse or neglect is not covered. Damage or defect caused
by shipping is excluded. L3 Systems shall not be liable for any
consequential damage or losses from the use of, or inability to use its
products. Any unauthorized repair or modification of the product
voids the warranty. L3 Systems makes no other warranty, express or
implied, nor have we authorized anyone to make representations to
the contrary.
FCC Class B Approval Information
NOTE: This equipment has been tested and found to comply with
the limits for a class B digital device, pursuant to part 15 of the
FCC Rules. These limits are designed to provide reasonable
protection against harmful interference in a residential
installation. This equipment generates, uses and can radiate
radio frequency energy and, if not installed and used in
accordance with the instructions, may cause harmful
interference to radio communications. However, there is no
guarantee that interference will not occur in a particular
installation. If this equipment does cause interference to radio
or television reception, which determined by turning the
equipment off and on, the user is encouraged to correct the
interference by one or more of the following measures:
•Reorient or relocate the receiving antennae
•Increase the separation between the equipment and the
receiver
•Connect the equipment into an outlet on a circuit different
from that to which the receiver is connected
•Consult the dealer or an experienced radio/TV technician for
help.

KeyRF –PC Remote Control
L3 Systems PO Box 2954 Redmond, WA 98073
Tel: [phone] http://www.L3sys.com Fax: [phone]
The KeyRF provides a convenient way to connect RF
remote control transmitter to your PC.
APPLICATIONS
♦Overhead Presentations -Use the KeyRF to control
presentations, such as PowerPoint (© Microsoft Corp.)
♦Home Automation -The KeyRF can provide input to
your PC-based home automation applications.
♦Embedded Systems –Many PC-based embedded
systems have need of a remote control interface.
♦PC TV –Remote control for your PC based TV.
FEATURES
♦Superior RF technology –Receives 360º and has
superior performance compared to infrared remotes.
♦Ready to Go –Set up ready to use with presentation
software. No software to load or setup required.
♦Programmable Button Actions –Five to seven
different key sequences can be sent to the PC, based
on the way the buttons are pressed on the remote
transmitter.
♦Easy installation –KeyRF requires no special
software to be installed on your system. Just plug the
KeyRF receiver between your PC and keyboard, or
your laptop’s keyboard port and you are ready to go.
♦Easy to use –KeyRF mimics your keyboard, so it will
work easily with most applications.
♦6 PIN Min-DIN cable provided –A Mini-DIN keyboard
extension cable is provided, just plug it in and go.