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8

3e-250 Bluetooth to RS-232 Cordless Adapter

9

User's Guide

3e-250 LED Description Table

LED

Activity

Description

Bluetooth Link Activity 

Indicator

Flashing Green
No light

Indicates link activity
Indicates OFF

Battery Status Indicator

Green
Orange
Red

Battery is 75-100% charged
Battery is 25-75% charged
Battery charge less than 

25%

Battery Charging Indicator

Red

No light

Charging from external 

power source
No external hookup or fully 

charged

Bluetooth Link Actrivity

Battery Status Indicator

Battery Charging Indicator

External Power Connector

The following chart gives the variables for the indicator lights.

Maintaining Battery Life

You can recharge the internal rechargeable batteries at any point. If 

the Battery Status Indicator turns red, you should recharge at your earli-

est convenience. Plug in the 120V AC / 9V DC power adapter shipped 

with the 3e-250 and charge fully (may require up to 3 hours). Recharging 

should be done in conditions of less than 113 ° F (45 ° C) to ensure proper 

charge.

There is an RS-232 Trickle-Charge on-off switch on the back of the 

3e-250 which is provided as a discretionary battery power conserva-

tion device. The default position is OFF. And this switch should be left 

in the off position if you are running the device connected to any piece 

of test equipment that runs on battery power, as it will "steal" the power 

from the parent device in order to "trickle-charge" the 3e-250 battery. 

However, if you are running the 3e-250 on a host device that can spare 

power, you can conserve battery power extensively by setting the RS-

232 Trickle-power switch to on. When the 3e-250 is charging from an AC 

power outlet, the switch can be either on or off. It does not matter.  See the 

picture of the back of the device on the preceding page for the location of 

the Trickle-Charge switch. Move the switch with a small point object like 

a paper clip or pen point.  

Содержание 3e-250

Страница 1: ...3e 250 Bluetooth to RS 232 Cordless Adaptor User s Guide 3e Technologies International 700 King Farm Blvd Rockville MD 20850 301 670 6779 www 3eti com 29000107 001 013003 ...

Страница 2: ...Intentionally left blank ...

Страница 3: ...3e 250 Bluetooth to RS 232 Cordless Adaptor User s Guide 3e Technologies International 700 King Farm Blvd Rockville MD 20850 301 670 6779 www 3eti com ...

Страница 4: ...nal and a copy will be provided to you UNITED STATES GOVERNMENT LEGEND If you are a United States Government agency then this documentation and the product described herein are provided to you subject to the following All technical data and computer software are commercial in nature and developed solely at private expense Software is delivered as Commercial Computer Software as defined in DFARS 25...

Страница 5: ...rom PC to PC 6 Connecting to a Test Instrument 7 Using the LEDs 7 Maintaining Battery Life 8 Configuration Commands for the 3e 250 Adapter 8 Troubleshooting 10 Manufacturer s Statement 10 Advices and Warnings 10 REGULATORY COMPLIANCE 11 FCC Part 15 Declaration of Conformity DoC 11 FCC Radiation Exposure Statement 11 ...

Страница 6: ...iv Intentionally left blank ...

Страница 7: ...ing a BT 1 1 compliant transceiver operating in the 2 4 GHz range using frequency hopping at 1600 times sec among the available frequency ranges The operating range of the 3e 250 is up to 30m or 100 feet It provides link control functionality and supports operation within a Bluetooth piconet in a slave mode It supports all Bluetooth data rates of up to 723 Kbits sec Installation The 3e 250 Cordles...

Страница 8: ...etup If some setup is required or you want to ensure the Adapter is work ing move the power switch to the on position and attach the DB9 serial port to a serial port on your computer To verify that the device is working open a Hyper Terminal applica tion on your computer You will usually find this application by following the path Start àPrograms à Accessories à Communications With your 3e 250 Ada...

Страница 9: ...t will readily identify it for you We chose port1 Click OK to begin the Hyper Terminal session You will next see a connect to screen Select the COM port to which the 3e 250 is connected and click OK Set the connect using dropdown menu to the COM port you are us ing on your computer This is usually COM1 or COM2 Click OK to go to the COM2 Properties screen ...

Страница 10: ...opdown menu In the Properties window select the Settings tab In the Backspace Key Sends section select the Ctrl H Space Ctrl H radio button And click on the ASCII Setup button In the ASCII Setup window make sure you check the selection for Send line end with line feeds and Echo typed characters locally Checking these options will provide feedback when you issue commands in hyperterminal This is ve...

Страница 11: ...yper Terminal window you can now type the command help and when you press the Enter key on your computer you will get a list of the commands available to the 3e 250 device in the Hyperterminal session You may want to save the Hyperterminal setup on your desktop so that you can use it to set up a number of the Adapters ...

Страница 12: ...s on its installation and operation Once the other device is installed let it discover all available devices NOTE If there is more than one Bluetooth device for it to discover you may want to use your Hyper Terminal session to rename your 3e 250 Adapter using the devicename command See the table of commands on page 9 for more information Select the 3e 250 Adapter from the list of discovered device...

Страница 13: ...RTS CTS and DTR DSR Before installing the 3e 250 Adapter on a test device research the required settings for that test device in its documentation The 3e 250 Adapter has two dipswitch settings accessible on the back bottom of the device The dipswitches allow you to configure for the particular device The DTR DSR switch is set to the ON position by default The RTS CTS switch is set OFF by default O...

Страница 14: ...ed with the 3e 250 and charge fully may require up to 3 hours Recharging should be done in conditions of less than 113 F 45 C to ensure proper charge There is an RS 232 Trickle Charge on off switch on the back of the 3e 250 which is provided as a discretionary battery power conserva tion device The default position is OFF And this switch should be left in the off position if you are running the de...

Страница 15: ... without argument simply displays current name if new devicename is set it will be echoed back to the host changebaud allows change to baud rate Default baud rate is 9600 maximum baud rate is 115200 command syntax is changebaud baud rate arguments are not optional Failure to supply argument causes an error message to echo back to the host An example of correct use would be changebaud 115200 Baud r...

Страница 16: ...ommands You can also access these commands by typing help in the Hyper Terminal window Troubleshooting Manufacturer s Statement The 3e 250 Bluetooth to RS 232 Cordless Adapter is provided with warranty It is not desired or expected that the user open the device If malfunction is experienced and all external causes are eliminated the user should return the unit to the manufacturer for service and r...

Страница 17: ...ntee that interference will not occur in a particular installation If this equipment does cause harmful interference to radio or televi sion reception which can be determined by turning the equipment off and on the user is encouraged to try and correct the interference by one or more of the following measures Relocate this device Increase the separation between the device and the receiver Connect ...

Страница 18: ...12 3e 250 Bluetooth to RS 232 Cordless Adapter ...

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