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Lexycom TIAMIS-800 Installation Manual

Made by: Lexycom
Type: Installation Manual
Category: Transceiver
Pages: 16
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TIAMIS-800 wireless radio transceiver 

 

 
 

Installation Manual 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

Lexycom Technologies, Inc. 

1227 Reserve Dr. 

Longmont, CO 80501 

info@lexycominc.com

 

 

March 2006, Ver. 1.0 

 


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TIAMIS-800 wireless radio transceiver 
Installation Manual. Ver. 1.0 

 

Information in this document is subject to change without notice. 
© 2006 Lexycom Technologies, Inc. All rights reserved. 
Microsoft and Windows are registered trademarks of the Microsoft Corporation. 
Other product names mentioned in this manual may be copyrights, trademarks, or registered 
trademarks of their respective companies and are hereby acknowledged. 

 
 

 

The Tiamis-800 Wireless Data Transceiver is made in the United States of America. 
Printed in the United States of America.

 

 

 

 

 

Table of Contents 

 
 

Table of Contents

............................................................................................................. 2 

Revision history .................................................................................................................. 3 
Notice.................................................................................................................................. 3 
General Safety Information................................................................................................. 4 
Electro Static Discharge (ESD) .......................................................................................... 4 
FCC Notification................................................................................................................. 5 
Electronic FCC ID .............................................................................................................. 6 
1. Transceiver Installation................................................................................................... 8 

Step 1. Install the Transceiver......................................................................................... 8 
Step 2. Install the Antenna .............................................................................................. 8 
Step 3. Install the Antenna Feedline ............................................................................... 8 
Step 4. Install the Power for the Transceiver .................................................................. 8 
Step 5. Connect Computer to the Transceiver ................................................................ 9 

2. Transceiver Configuration ............................................................................................ 11 

Step 1. Determine the Signal Loss in your Antenna Cable........................................... 11 
Step 2. Determine the Maximum Allowed Transceiver’s Output Power Settings ....... 13 
Step 3. Adjust Transceiver’s Output Power.................................................................. 15 

 

 

 


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TIAMIS-800 wireless radio transceiver 
Installation Manual. Ver. 1.0 

 

 

 

 

 

 

 
 

Revision history 

 
 
Revision 

Released 

Firmware level covered 

1.0 

March, 2006 

1106.i and prior, PCB Rev A2 

 
 

 

Notice 

 
Changes or modifications not expressly approved by Lexycom Technologies, Inc. could 
void the user’s authority to operate this equipment. 
 
Any and all product information in this document is subject to change without notice. 

 


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TIAMIS-800 wireless radio transceiver 
Installation Manual. Ver. 1.0 

 

 

 

 

 

 

 

General Safety Information 

 
Lexycom Technologies, Inc. does not recommend the use of its products in life support 
applications where the failure or malfunction of a component may directly threaten life or 
lead to an injury. 
 
Do not operate radio equipment near electrical blasting caps or in an explosive 
atmosphere. 
 
Do not operate radio transmitter unless all RF connectors are secure and any open 
connectors are properly terminated. 
 
Do not allow the antenna to come close to, or touch, the eyes, face, or any exposed body 
parts while the radio is transmitting. 
 
Be sure that your Tiamis-800 transceiver has been provided with sufficient DC voltage 
and current.  
 
All equipment should be installed according to the manufacturer’s instructions and

 

in 

accordance with

 

all regulatory agencies.

 

 
 

Electro Static Discharge (ESD) 

 
Static build up can cause serious damage to electronic devices when improperly handled. 
Appropriate precautions should be taken when handling the transceiver(s).   
 
 

 

 


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TIAMIS-800 wireless radio transceiver 
Installation Manual. Ver. 1.0 

 

 

 

 

 

 

 

FCC Notification 

 

This device complies with part 15 of the FCC rules. Operation is subject to the following 
two conditions: 1) This device may not cause harmful interference and 2) this device 
must accept any interference received, including interference that may cause undesired 
operation. 
 
This device must be operated as supplied by Lexycom Technologies, Inc. Any changes or 
modifications made to the device without the express written approval of Lexycom 
Technologies may void the user's authority to operate the device. 

 
 
 

WARNING: 

The Tiamis-800 transceiver has the maximum transmitted output power of 
1 Watt. It is required that the transmit antenna be kept at least 23 cm away 
from nearby persons to satisfy FCC RF exposure requirements. 

 
 
 
NOTE: 

This equipment has been tested and found to comply with the limits for a 
Class A digital device, pursuant to part 15 of the FCC Rules. These limits 
are designed to provide reasonable protection against harmful interference 
in the commercial installations. 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. Operation of this equipment in a residential area is likely 
to cause harmful interference in which case the user will be required to 
correct the interference at his own expense. 

 

 


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TIAMIS-800 wireless radio transceiver 
Installation Manual. Ver. 1.0 

 

 

 

 

 

 

 

Electronic FCC ID 

 

 

The Tiamis-800 transceiver is a Software Defined Radio transceiver (SDR). Its FCC ID 
label can be accessed by using a standard terminal program such as Hyper Terminal or 
similar. 
 
To access transceiver’s FCC ID, follow the steps below. 
 
1. Connect one end of the data cable supplied to you by Lexycom to the RS232 

diagnostics connector and the other end of the same cable to the programming 
computer’s COM port. 

 
 

 

 
 
2. Apply power to the transceiver by turning the power source On. 
 
3. On the computer, start the Hyper Terminal or similar terminal program. 
 
4. Push the Reset button on the interface board. The Hyper Terminal’s screen will show 

FCC ID number (shown below). 

 

Data cable is connected to 
the RS232 diagnostics port. 

Setup switch 

 


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TIAMIS-800 wireless radio transceiver 
Installation Manual. Ver. 1.0 

 

 

 

 

 

 

 

 
 

 
 

 


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TIAMIS-800 wireless radio transceiver 
Installation Manual. Ver. 1.0 

 

DOIM0010AA 

 

Page 8 of 16 

 

1. Transceiver Installation 

 

To install the transceiver follow the steps listed below. 
 

Step 1. Install the Transceiver 

 

  

Install the transceiver on a flat surface using the mounting holes in the 
corners of the transceiver. 

 
 

Step 2. Install the Antenna 

 

 

Choose the location for the antenna wisely. Generally, the higher the 
antenna is placed, the better RF link will be. 

 

Keep in mind that the antennas close by to your antenna might potentially 
create interference. Avoid locating your antenna in close proximity to 
other RF equipment. 

 

WARNING:   Any antennas placed outdoors must be properly 

grounded. Use extreme caution when installing 
antennas and follow all instructions included with the 
antennas.

 

 
 

Step 3. Install the Antenna Feedline 

 

 

Depending upon the application, this step usually involves a preparation 
and manufacturing of a conduit for the antenna feeder line, routing the 
feeder, and assuring the proper feeder line terminations.  

 

When done, connect antenna’s feedline to the transceiver’s RF connector. 

 
 

Step 4. Install the Power for the Transceiver 

 

 

Connect the four pin power cable to the power plug on the interface board 
to the Tiamis-800 radio with the power adaptor and the four pin power 
shown on the picture below.  

 


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Installation Manual. Ver. 1.0 

 

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Page 9 of 16 

 

 

Caution:  

The red wire on the four pin power cable should be 
the closest to the RS232 data connector (see picture 
below). 

 
 

 
 

 

 
 
 
 
 

Make sure that your power source is adequate to power up the transceiver. 
 

WARNING:   The Tiamis-800 transceiver is design to operate in the 

negative ground systems only.

 

 

Connect the red wire of the four pin power cable to the positive terminal 
of your power source. Connect one of the black wires of the four pin 
power cable to the ground terminal of your power source cable.  

 
 

Step 5. Connect Computer to the Transceiver 

 

 

Connect one end of the data cable supplied to you by Lexycom to the 
RS232 diagnostics connector Tiamis-800, on the interface board. Connect 
Data port 1, the other end of the same cable to the programming 
computer’s COM port. 

 
 

RS232 data 

connector 

RS232 diagnostic 

connector 

Power plug 

Setup switch 

 


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Page 10 of 16 

 

 
 

Apply power to the transceiver by turning the power source On. 

 

WARNING: 

Polarity 

of this connector is 
very important! 
 
If reversed, the 
transceiver may be 
permanently 
damaged. 

Data cable is 
connected to the 
RS232 diagnostics 
port. 

 


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Installation Manual. Ver. 1.0 

 

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Page 11 of 16 

 

2. Transceiver Configuration 

 
When purchased, the Lexycom wireless data transceivers are shipped from the factory 
pre-configured to operate in the Slave mode of operation with the acknowledgement 
turned off. The most of the factory default settings can be left unchanged. 
 
However, some of the settings  need  to  be  verified  and  changed (if needed) during the 
transceiver’s installation. 
 

NOTE: 

It is installer’s responsibility to ensure that the Tiamis-
800 transceiver is installed according to the guidelines 
listed below depending on the system configuration.  

 

It is also installer’s responsibility to assure that the 
transceiver’s emission limits are not exceeded.

 

 
Therefore, please follow the steps listed below to assure transceiver’s proper installation. 
 
 

Step 1. Determine the Signal Loss in your Antenna Cable 

 

This step is required to assure that the transceiver’s emission limits are not 
exceeded when it is used in combination with different cables and 
antennas. 
 

WARNING:

  

If a directional antenna is used, follow the steps below 
to adjust transceiver’s output power to assure its 
compliance with the FCC Rules and Regulations.

 

 
 

To properly set output power of the transceiver, you need to know signal 
loss in the antenna cable. The cable loss depends on the cable type and its 
length. Lexycom Technologies provides two types of cables: LMR240 and 
LMR400. You can use Tables 6.1.1 and 6.1.2 below to find the loss in 
your cable. 

 


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Table 1. LMR240 cable loss at 915 MHz. 

 

 

LMR240 cable length 

LMR240 cable loss @ 915 MHz 

10 feet 

0.8 dB 

50 feet 

3.8 dB 

100 feet 

7.6 dB 

200 feet 

15.2 dB 

Table 2. LMR400 cable loss at 915 MHz. 

 

 

LMR400 cable length 

LMR400 cable loss @ 915 MHz 

50 feet 

2 dB 

100 feet 

3.9 dB 

200 feet 

7.8 dB 

 

 

 

 

Below is the list of antennas, which are approved for the use with the 
transceiver. 

 

 

Table 3. List of omnidirectional antennas approved for the use 
with the Tiamis-800 transceivers. 

 

 

 

Antenna 

manufacturer 

Manufacturer’s 

Part Number 

Lexycom’s Part 

Number 

Gain Notes 

Astron 

Wireless 

V9183 FGAN0905OS 

dB 

 

Redial/Larsen SPDA24918  FGAN0900PD 2 

dB 

 

Astron 

Wireless 

AXH92SMS FGAN0900PA 0 

dB 

 

Astron 

Wireless 

AXH92SM FGAN0900PS 0 

 

 

Table 4. List of directional antennas approved for the use with 
the Tiamis-800 transceivers.. 

 

 

 

Antenna 

manufacturer 

Manufacturer’s 

Part Number 

Lexycom’s Part 

Number 

Gain Notes 

Astron 

Wireless 

918-3 

FGAN0903YS 

7 dB 

3 element Yagi 

Astron 

Wireless 

918-6 

FGAN0906YS 

11 dB 

6 element Yagi 

Astron 

918-6ESP 

FGAN0906YE 

11 dB 

6 element Yagi 

 


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Installation Manual. Ver. 1.0 

 

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Page 13 of 16 

Wireless 

 
 

Step 2. Determine the Maximum Allowed Transceiver’s Output Power 

Settings 

 

According to the FCC Rules, the Tiamis-800 transceiver’s output power 
should be set to assure that the total EIRP of the system does not exceed 
36 dBm.  

 

Therefore, if the transceiver is used with one of the omnidirectional 
antennas listed above, the transceiver’s output power can be kept at its 
maximum settings of ‘10’.  

 

However, if one of the directional antennas used with the transceiver, use 
the tables below to determine the maximum allowed transceiver’s output 
power settings to assure its compliance with the FCC Rules and 
Regulations. 

Table 5. 7 dB Yagi, Lexycom’s PN #FGAN9183YS, LMR240 
cable type 

 

 

Transmitter’s 

output power 

settings 

Transmitter’s 

output 

power, mW 

Total EIRP based on the length of the LMR240 

cable, mW 

  

LMR240, 

 

10 feet 

LMR240,  

50 feet 

LMR240, 

100 feet 

LMR240, 

200 feet 

10 1000 

36.2 33.2 29.4 21.8 

900  35.7 32.7 28.9 21.3 

800  35.2 32.2 28.4 20.8 

700  34.7 31.7 27.9 20.3 

6 600 

34 

31 

27.2 

19.6 

500  33.2 30.2 26.4 18.8 

400  32.2 29.2 25.4 17.8 

3 300 

31 

28 

24.2 

16.6 

200  29.2 26.2 22.4 14.8 

100  26.2 23.2 19.4 11.8 

0 1 

6.2 

3.2 

-0.6 

-8.2 

 
 

WARNING.   The settings marked in red will lead to transceiver’s 

output power to be higher than allowed by the FCC. 
Adjust transceiver’s output power settings to assure 
the compliance. 

 


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Installation Manual. Ver. 1.0 

 

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Page 14 of 16 

 

Table 6. 11 dB Yagi, Lexycom’s PN #FGAN9186YS and 
FGAN9186YS

,

 LMR240 cable type 

 

 

Transmitter’s 

output power 

settings 

Transmitter’s 

output 

power, mW 

Total EIRP based on the length of the LMR240 

cable, mW 

  

LMR240, 

 

10 feet 

LMR240,  

50 feet 

LMR240, 

100 feet 

LMR240, 

200 feet 

10 1000 

39.2 

36.2 32.4 24.8 

9 900 

38.7 35.7 31.9 24.3 

8 800 

38.2 35.2 31.4 23.8 

7 700 

37.7 34.7 30.9 23.3 

6 600 

37 34 30.2 

22.6 

5 500 

36.2 33.2 29.4 21.8 

400  35.2 32.2 28.4 20.8 

3 300 

34 

31 

27.2 

19.6 

200  32.2 29.2 25.4 17.8 

100  29.2 26.2 22.4 14.8 

9.2 6.2 2.4 -5.2 

 

WARNING.   The settings marked in red will lead to transceiver’s 

output power to be higher than allowed by FCC. 
Adjust transceiver’s output power settings to assure 
compliance. 

 

Table 7. 7 dB Yagi, Lexycom’s PN #FGAN9183YS, LMR400 
cable type 

 

 

Transmitter’s 

output power 

settings 

Transmitter’s 

output 

power, mW 

Total EIRP based on the length of the LMR400 

cable, mW 

  

LMR400, 

 

50 feet 

LMR400, 100 

feet 

LMR400, 200 

feet 

10 1000  35  33.1  29.2 

9 900 34.5 32.6 28.7 
8 800 34  32.1 28.2 
7 700 33.5 31.6 27.7 
6 600 32.8 30.9  27 
5 500 32  30.1 26.2 
4 400 31  29.1 25.2 
3 300 29.8 27.9  24 
2 200 28  26.1 22.2 
1 100 25  23.1 19.2 
0 1  5  3.1 -0.8 

 
 

 


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TIAMIS-800 wireless radio transceiver 
Installation Manual. Ver. 1.0 

 

DOIM0010AA 

 

Page 15 of 16 

Table 8. 11 dB Yagi, Lexycom’s PN #FGAN9186YS and 
FGAN9186YS

,

 LMR240 cable type 

 

 

Transmitter’s 

output power 

settings 

Transmitter’s 

output 

power, mW 

Total EIRP based on the length of the LMR400 

cable, mW 

  

LMR400, 

 

50 feet 

LMR400, 100 

feet 

LMR400, 200 

feet 

10 1000  39 

37.1 33.2 

9 900 38.5 

36.6 32.7 

8 800 38 

36.1 32.2 

7 700 37.5 35.6 31.7 
6 600 36.8 34.9  31 
5 500 36 34.1 30.2 
4 400 35  33.1 29.2 
3 300 33.8 31.9  28 
2 200 32  30.1 26.2 
1 100 29  27.1 23.2 
0 1  9  7.1 3.2 

 

WARNING.   The settings marked in red will lead to transceiver’s 

output power to be higher than allowed by FCC. 
Adjust transceiver’s output power settings to assure 
compliance. 

 
 

Step 3. Adjust Transceiver’s Output Power 

 

To adjust the output power settings of the transceiver, start the Lexycom’s 
Configuration Program supplied to you on a CD at the time of 
transceiver’s purchase. 

 

Download/read transceiver’s settings (refer to the Configuration Program 
User Manual for more details). 
 
When done, navigate to the 

Network Access 

tab. The screen for this tab is 

shown below. 
 

 


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Installation Manual. Ver. 1.0 

 

DOIM0010AA 

 

Page 16 of 16 

 

 

Locate the OutputPowerLevel menu item (shown on the picture above). 
Click on it and select the desired output power settings. 
 
When done, upload all settings to the transceiver (refer to the 
Configuration Program User Manual for more details). 

 

 

Transceiver’s 

output power 

adjustment