Adcon Telemetry D900SS-20-A User Manual Objective

Technical Manual

Technical ManualTechnical Manual

Technical Manual

EDITION: 0.

EDITION: 0.EDITION: 0.

EDITION: 0.7

77

7

UPDATED: August 7, 2001

B900ss-20

Radio Modem Card

Spread Spectrum

(FCC Approved

Part 15.247)

2

ADCON AG

Adcon Telemetry, Inc.

1001 Yamato Road

Suite 305

Boca Raton, Florida 33431

Tel: 561-989-5309

Fax: 561-989-5310

Internet Site

http://www.adcon.com

E-mail

info@adcon.com

The information within this document may be modified without notice. No part of this manual can

be duplicated or transferred, electronically or mechanically in any way, without ADCON AG.'s

strict and written consent.

3

INDEX

Chapter 1.

Objective................................

................................................................

..............................................

............................

.............. 5

55

5

Chapter 2.

Module introduction ................................

................................................................

...........................................................

......................................................

........................... 6

66

6

2.1.

Description................................

................................................................

................................ 6

66

6

2.2.

Specifications................................

................................................................

............................................................

........................................................

............................ 7

77

7

2.2.1. General.............................................................................................................................................7

2.2.2. Specifications of the B900ss-20 ......................................................................................................7

2.2.3. Schematic.........................................................................................................................................9

2.3.

Available Configuration ................................

................................................................

.........................................

..................

......... 10

1010

10

2.3.1. Software Configuration .................................................................................................................10

2.3.2. Hardware Configuration................................................................................................................10

Chapter 3.

Basic Operation................................

................................................................

.................................

...11

1111

11

3.1.

General................................

................................................................

....................................

........

.... 11

1111

11

3.2.

"Hayes" Mode................................

................................................................

........................................................

................................................

........................ 11

1111

11

3.3.

"Point-to-Point" Mode................................

................................................................

...........................................

......................

........... 12

1212

12

3.4.

"Network" Mode................................

................................................................

....................................................

........................................

.................... 13

1313

13

3.5.

DemoKit Utilization ................................

................................................................

................................................

................................

................ 14

1414

14

3.5.1. Installation and Connection..........................................................................................................14

3.5.2. WinB900 Software Utilization in Point-to-Point Mode ................................................................15

3.5.3. Use of the WinB900 Software in Network Mode.........................................................................18

3.5.4. Use of the "Terminal" or "HyperTerminal" Software .................................................................20

Chapter 4.

Advanced Operation................................

................................................................

.........................................................

..................................................

......................... 21

2121

21

4.1.

General................................

................................................................

....................................

........

.... 21

2121

21

4.2.

"Hayes" Protocol Commands................................

................................................................

...............................................................

..............................................................

............................... 22

2222

22

4.2.1. General...........................................................................................................................................22

4.2.2. Description of the standard commands.......................................................................................23

4.2.3. Registers Description ....................................................................................................................24

4.3.

Utilization Example................................

................................................................

.................................................

..................................

................. 25

2525

25

4.3.1. Acquisition of two Point-to-Point Modems..................................................................................25

4.4.

Radio Test Commands................................

................................................................

...........................................

......................

........... 28

2828

28

4

4.5.

Utilization of WinB900................................

................................................................

............................................

........................

............ 29

2929

29

4.5.1. Hayes commands...........................................................................................................................29

4.5.2. Test Commands.............................................................................................................................31

Appendix 1: Schematic Block Diagram

Appendix 1: Schematic Block DiagramAppendix 1: Schematic Block Diagram

Appendix 1: Schematic Block Diagram ................................

................................................................

....................................................

........................................

....................33

3333

33

Appendix 2: Mechanical Drawings

Appendix 2: Mechanical DrawingsAppendix 2: Mechanical Drawings

Appendix 2: Mechanical Drawings................................

................................................................

............................................................

........................................................

............................34

3434

34

Drawing of the B900ss-20 Card ................................

................................................................

..........................................

....................

.......... 34

3434

34

Interface Signals................................

................................................................

...................................

......

... 35

3535

35

Connector Drawing ................................

................................................................

.............................................................

..........................................................

............................. 37

3737

37

Connecting Cable Drawing................................

................................................................

.................................................

..................................

................. 37

3737

37

Appendix 3: Antenna Connection

Appendix 3: Antenna ConnectionAppendix 3: Antenna Connection

Appendix 3: Antenna Connection ................................

................................................................

............................................................

........................................................

............................38

3838

38

Appendix 4: D900SS

Appendix 4: D900SSAppendix 4: D900SS

Appendix 4: D900SS-

--

-20 DemoKit

20 DemoKit20 DemoKit

20 DemoKit ................................

................................................................

.................................

...39

3939

39

Composition................................

................................................................

.........................................

..................

......... 39

3939

39

Connections................................

................................................................

.........................................

..................

......... 40

4040

40

Appendix 5: Timing Diagrams

Appendix 5: Timing DiagramsAppendix 5: Timing Diagrams

Appendix 5: Timing Diagrams................................

................................................................

...................................

......

...41

4141

41

Appendix 6: Description of the registers

Appendix 6: Description of the registersAppendix 6: Description of the registers

Appendix 6: Description of the registers ................................

................................................................

.................................................

..................................

.................43

4343

43

Registers used by the ‘AT’ protocol................................

................................................................

...................................

......

... 43

4343

43

Appendix 7: Revisions History

Appendix 7: Revisions HistoryAppendix 7: Revisions History

Appendix 7: Revisions History................................

................................................................

...................................

......

...46

4646

46

5

Chapter 1. Objective

The objective of this document is to present the features and the application of the

B900ss-20 radio module.

The operation of this module is divided into two chapters:

• The ‘Basic Operation’ chapter describes the Module operating modes and allows

the user to learn the WinB900 Software in walking through it.

• The ‘Advanced Operation’ is especially for users that want to program the module

directly. It presents all the available commands.

FCC Compliance and Warning

FCC Compliance and WarningFCC Compliance and Warning

FCC Compliance and Warning

Thank you for choosing Adcon Telemetry's B900ss

Thank you for choosing Adcon Telemetry's B900ssThank you for choosing Adcon Telemetry's B900ss

Thank you for choosing Adcon Telemetry's B900ss-

--

-20 Smart Spread Spectrum RF

20 Smart Spread Spectrum RF 20 Smart Spread Spectrum RF

20 Smart Spread Spectrum RF

Module, which has been tested and found to comply with the limits for a Class B digita

Module, which has been tested and found to comply with the limits for a Class B digitaModule, which has been tested and found to comply with the limits for a Class B digita

Module, which has been tested and found to comply with the limits for a Class B digital

l l

l

device, pursuant to Part 15 of the FCC Rules.

device, pursuant to Part 15 of the FCC Rules.device, pursuant to Part 15 of the FCC Rules.

device, pursuant to Part 15 of the FCC Rules.

In accordance with FCC rules and regulations, Part 15, this is to advise you that if the

In accordance with FCC rules and regulations, Part 15, this is to advise you that if the In accordance with FCC rules and regulations, Part 15, this is to advise you that if the

In accordance with FCC rules and regulations, Part 15, this is to advise you that if the

FCC ID number of the Smart Spread Spectrum is not visible when installed inside your

FCC ID number of the Smart Spread Spectrum is not visible when installed inside your FCC ID number of the Smart Spread Spectrum is not visible when installed inside your

FCC ID number of the Smart Spread Spectrum is not visible when installed inside your

device, then the outside of your

device, then the outside of your device, then the outside of your

device, then the outside of your device into which the module is installed must also

device into which the module is installed must also device into which the module is installed must also

device into which the module is installed must also

display a label referring to the enclosed module. This exterior label can use wording

display a label referring to the enclosed module. This exterior label can use wording display a label referring to the enclosed module. This exterior label can use wording

display a label referring to the enclosed module. This exterior label can use wording

such as the following: "Contains FCC ID: MQXB900ss

such as the following: "Contains FCC ID: MQXB900sssuch as the following: "Contains FCC ID: MQXB900ss

such as the following: "Contains FCC ID: MQXB900ss-

--

-20." Any similar wording that

20." Any similar wording that 20." Any similar wording that

20." Any similar wording that

expresses the same meaning may be use

expresses the same meaning may be useexpresses the same meaning may be use

expresses the same meaning may be used.

d. d.

d.

In addition the following statement should also be included on an exterior label (or in

In addition the following statement should also be included on an exterior label (or in In addition the following statement should also be included on an exterior label (or in

In addition the following statement should also be included on an exterior label (or in

your documentation, if the unit is too small to accommodate the label) "

your documentation, if the unit is too small to accommodate the label) "your documentation, if the unit is too small to accommodate the label) "

your documentation, if the unit is too small to accommodate the label) "This device

This device This device

This device

complies with Part 15 of the FCC Rules. Operation is subject to the following t

complies with Part 15 of the FCC Rules. Operation is subject to the following tcomplies with Part 15 of the FCC Rules. Operation is subject to the following t

complies with Part 15 of the FCC Rules. Operation is subject to the following two

wo wo

wo

conditions: (1) this device may not cause harmful interference, and (2) this device must

conditions: (1) this device may not cause harmful interference, and (2) this device must conditions: (1) this device may not cause harmful interference, and (2) this device must

conditions: (1) this device may not cause harmful interference, and (2) this device must

accept any interference that may cause undesired operation.

accept any interference that may cause undesired operation.accept any interference that may cause undesired operation.

accept any interference that may cause undesired operation. "

" "

"

Adcon’s Smart Spread Spectrum Modules

Adcon’s Smart Spread Spectrum ModulesAdcon’s Smart Spread Spectrum Modules

Adcon’s Smart Spread Spectrum Modules

are designed as component devices, which

are designed as component devices, which are designed as component devices, which

are designed as component devices, which

require external compo

require external comporequire external compo

require external components to function. The B900ss

nents to function. The B900ssnents to function. The B900ss

nents to function. The B900ss-

--

-20 modules are intended to allow

20 modules are intended to allow 20 modules are intended to allow

20 modules are intended to allow

for full Part 15 compliance and are approved by the FCC. The purchaser understands

for full Part 15 compliance and are approved by the FCC. The purchaser understands for full Part 15 compliance and are approved by the FCC. The purchaser understands

for full Part 15 compliance and are approved by the FCC. The purchaser understands

that further approvals may be required prior to the sale or operation of the device, and

that further approvals may be required prior to the sale or operation of the device, and that further approvals may be required prior to the sale or operation of the device, and

that further approvals may be required prior to the sale or operation of the device, and

agrees to utilize the

agrees to utilize theagrees to utilize the

agrees to utilize the component in keeping with all laws governing its operation in the

component in keeping with all laws governing its operation in the component in keeping with all laws governing its operation in the

component in keeping with all laws governing its operation in the

country of operation."

country of operation."country of operation."

country of operation."

In order to comply with the FCC rules and regulations, the B900ss

In order to comply with the FCC rules and regulations, the B900ssIn order to comply with the FCC rules and regulations, the B900ss

In order to comply with the FCC rules and regulations, the B900ss-

--

-20 RF Module may

20 RF Module may 20 RF Module may

20 RF Module may

only be used with approved antennas that have been tested with this radio. At this

only be used with approved antennas that have been tested with this radio. At thisonly be used with approved antennas that have been tested with this radio. At this

only be used with approved antennas that have been tested with this radio. At this

writing the only approved antenna is the quarter

writing the only approved antenna is the quarterwriting the only approved antenna is the quarter

writing the only approved antenna is the quarter-

--

-wave rubber duck antenna by MAT. If

wave rubber duck antenna by MAT. If wave rubber duck antenna by MAT. If

wave rubber duck antenna by MAT. If

the OEM integrates the MQXB900ss

the OEM integrates the MQXB900ssthe OEM integrates the MQXB900ss

the OEM integrates the MQXB900ss-

--

-20 into their final product, where the product

20 into their final product, where the product 20 into their final product, where the product

20 into their final product, where the product

utilizes a non

utilizes a nonutilizes a non

utilizes a non-

--

-approved antenna, the OEM is responsible for obtaining a separate

approved antenna, the OEM is responsible for obtaining a separate approved antenna, the OEM is responsible for obtaining a separate

approved antenna, the OEM is responsible for obtaining a separate

authoriza

authorizaauthoriza

authorization on the final product.

tion on the final product.tion on the final product.

tion on the final product.

6

This wireless transmitter contains a low power transmitter.

This wireless transmitter contains a low power transmitter.This wireless transmitter contains a low power transmitter.

This wireless transmitter contains a low power transmitter. When in transmit it sen

When in transmit it sen When in transmit it sen

When in transmit it sends

ds ds

ds

out radio frequ

out radio frequout radio frequ

out radio frequency (RF) energy.

ency (RF) energy. ency (RF) energy.

ency (RF) energy. In August 1996 the Federal Communications

In August 1996 the Federal Communications In August 1996 the Federal Communications

In August 1996 the Federal Communications

Commi

CommiCommi

Commission

ssionssion

ssion (FCC) adopted RF

(FCC) adopted RF (FCC) adopted RF

(FCC) adopted RF exposure safety guidelines.

exposure safety guidelines. exposure safety guidelines.

exposure safety guidelines. To maintain compliance

To maintain compliance To maintain compliance

To maintain compliance

with the

with the with the

with the FCC

FCCFCC

FCC’

’’’s

ss

s RF safety exposure guideli

RF safety exposure guideli RF safety exposure guideli

RF safety exposure guideline

nene

nes

ss

s it is recommended that you remain 2

it is recommended that you remain 2 it is recommended that you remain 2

it is recommended that you remain 2

inches (5 centimeters)

inches (5 centimeters) inches (5 centimeters)

inches (5 centimeters) away from the antenna

away from the antenna away from the antenna

away from the antenna while the unit is transmitting.

while the unit is transmitting. while the unit is transmitting.

while the unit is transmitting. The

The The

The

D900ss

D900ssD900ss

D900ss-

--

-20

2020

20

Demo Kit

Demo Kit Demo Kit

Demo Kit comes supplied with a permanently

comes supplied with a permanently comes supplied with a permanently

comes supplied with a permanently attached antenna.

attached antenna. attached antenna.

attached antenna.

Modifications or attachments

Modifications or attachments Modifications or attachments

Modifications or attachments could damage the transmitter, alter the RF exposure

could damage the transmitter, alter the RF exposurecould damage the transmitter, alter the RF exposure

could damage the transmitter, alter the RF exposure, and

, and , and

, and

may violate FCC

may violate FCC may violate FCC

may violate FCC regulations.

regulations.regulations.

regulations.

Chapter 2. Module introduction

2.1. Description

The B900ss-20 is an FM radio transceiver with frequency hopping using an F.S.K

modulation. The receiver is of a super beat oscillator type with heterodyning. It

operates on the 902-928 MHz band and, therefore, is within U.S. FCC part 15.247

standard.

Using the frequency synthesis, it has a maximum of 50 channels spaced by 150 kHz and

can communicate with equipment via a serial interface with RS-232 standard and TTL

levels.

The serial link is completely programmable from 2400 up to 38400 Baud. The radio rate

is established at 40 KBits/s.

The B900ss-20 uses the most recent technology of flash memory micro controller, which

allows the user to update or to load new features through the serial link.

Many parameters are programmable through the serial link and the default

configuration is memorized in an EEPROM (ROM).

At each activation, the radio modem component is programmed with its configuration

parameters (Channel, Speed, Protocol, etc.).

The default data are: RS-232 connection at 19,200 Baud, 8 bits, 1 stop bit, no parity,

Frequency Table 1, slave modem.

All these parameters are accessible and modifiable with HAYES or AT commands.

7

2.2. Specifications

2.2.1. General

The B900ss-20 is a radio card component that receives and transmits data according to

a frequency table selected by the user.

2.2.2. Specifications of the B900ss-20

Dimensions

Weight: <2 ozs. (< 50 grams)

Dimensions: 1.57" x 1.69" x .29" (without antenna).

Connectors: 1 14FMS-1.0SP-TF 14 pin connector from JST.

Electronics

• Radio part

Frequency: 902 to 928 MHz (FCC part 15-247).

Number of channels: 50, channel 0 to 49.

Channel selection: Frequency hopping, according to a random

table of 50 channels. 8 tables are stored in

EEPROM memory.

Radio rate: 40KBits/s.

Modulation/Demodulation: FSK (Frequency Shift Keying).

Bit encoding: Quad Frequential encoding.

RF sensitivity: -90 dBm (± 2 dB) at 50 Ohms.

RF power: +13 dBm (20 mW) (± 2 dB) over 50 Ohms.

Error rate: 10-4 to -88 dBm.

Saturation: Two modules communicate at 0 dBm.

Operating Temp.: Standard Operation: +32°F to +122°F.

(0º to +50º Centigrade)

Storage Temp.: -40°F to +176°F (-40ºC to +80º C)

Relative humidity: from 20% to 90% RH (without condensation).

8

• Digital Part

Processor: FLASH Atmel Micro controller

Programming: Upload and download with a PC through the RS232

serial link and a specific interface (Demo Kit D900).

Program Mem.: 8 Ko of FLASH

Data Memory: 512 bytes of RAM for stack and data

EEPROM Memory: 512 bytes for the HAYES parameters (registers S).

Serial Link: 2400 to 38400 Baud, NRZ format, 5 volts TTL level.

• Power Supply

Supply voltage: 5V monitored (± 5%).

Consumption: Receive Transmit Sleep

<40mA <80mA <5mA

• HAYES Commands:

The user can program all the parameters. A Windows programming software

is supplied "on-line" with documentation support. (See AT commands).

Examples of Hayes commands:

Serial: Serial link rate, parity, bit count, stop bit count, Serial Time-

out, …

Radio: Channels table selection, retry count, …

Mode: Point to Point, Network, Stand-by, etc.

• Performance range

Length of com.: 164 to 328 Feet (50 to 100 meters) in difficult

environment (buildings, reinforced concrete)

984 to 1,312 Feet (300-400 meters) in open

environment (Ground level).

3,281 Feet (1 Km) in view and in height (example:

between buildings)

Obstacles Impact: Walls, trees, obstacles can strongly reduce the

range

9

2.2.3. Schematic

See Appendix 1 for the principle schematics and the physical description of the card.

10

2.3. Available Configuration

2.3.1. Software Configuration

The B900ss-20 has 3 operating modes managed by the WinB900 Software (See Chapter

3):

• "Hayes".

• Point-to-Point.

• Network (future)

2.3.2. Hardware Configuration

All the B900SS product radio modules are delivered with the necessary software for

operation. An evaluation Demo Kit (D900SS-20) is available at Adcon and allows the

user to evaluate the radio module's performance. For more information, refer to

Appendix 4.

With each radio module, the following is available:

• Series of programming ASCII messages to integrate the radio modems with a serial

link.

• A Windows configuration and test software programming the radio modules and

testing the links (quality, distance, shadow area, etc.).

• A set of reference material available in CD-ROM.

11

Chapter 3. Basic Operation

3.1. General

The B900ss-20 can operate with three data communication modes:

• "Hayes": inspired from the standard Hayes for voice modems, it is used to

program the modem's parameters.

• "Point-to-Point": Two B900ss-20 replace a cable (the Half-duplex operation copies

the function of an RS-485 cable). This mode automatically handles the data security

(encapsulation, iterations, etc.)

• "Network": Several B900ss-20 can work together, in accordance with a

Client/Server structure. A Server will then be able to handle up to 16 clients

simultaneously.

3.2. "Hayes" Mode

The Hayes commands used by the radio module are in conformity with the Hayes

protocol standard used for the voice modems. This protocol is based on the following

principle: A data frame always starts with the two ASCII characters "AT" for

"ATtention". The commands follow and are coded on one or several characters

eventually with additional data.

Since the B900ss-20 does not operate exactly like a voice modem, it includes additional

"AT" codes.

These commands are principally used to read and write the data in the configuration

registers stored in EEPROM.

12

3.3. "Point-to-Point" Mode

In this mode, two B900ss-20 Modems can communicate together without getting any

interference with other Modems.

For this purpose, their work is synchronized and constantly jumping frequency,

avoiding interference with another transmitter: if one or more channels are busy, the

data will be transmitted through another channel.

On the other hand, a "Personal Network" owns each set of modem. The data used for

a "Personal Network" cannot be intercepted by another "Personal Network". Each

"Personal Network" owns a Master, which handles the communication (synchronization,

priority, etc.) and a Slave that obeys its Master.

The first synchronization is named "Acquisition", and lets a Slave get acquainted with

its Master (No. of Personal Network, Frequency Table used, etc.). Eventually, at each

powered reset, the Slave will synchronize, then later be able to communicate with its

Master. A "Lock" signal shows if a Slave has been synchronized with its Master or not.

Eventually, this synchronization is maintained all along the Master/Slave Dialogue.

A hardware flow control (RTS/CTS) is present on the Modems serial link in order to let

the user know that the buffer (130 characters) starts to saturate. The alarm level is by

default 130 characters and can be programmed through the S215 Register.

Finally, an Ack_Tx signal, synchronized on the RTS signal, allows the transmitter user to

know if the receiver user has received a data frame or not.

For more specific information and to get the Time Series Charts, see the following

chapter ("Advanced Part") and the Appendix 5.

13

3.4. "Network" Mode

In this mode, several B900ss-20 Modems are able to communicate with each other.

Therefore, they constitute a Network handled by a Server Modem that can hold up to

16 Client Modems (6 in the actual V0.2 version).

The acquisition procedures, the modems synchronization and the RTS/CTS and Ack_Tx

signals handling are the same as for the "Point-to-Point" Mode.

On the other hand, when a frame is sent, it is necessary that a character indicating the

receiver modem number precedes the data frame. Also, in receiving the frame, a

character preceding this frame indicates the transmitter modem.

14

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 that may cause undesired operation.

3.5. Demo Kit Utilization

3.5.1. Installation and Connection

A D900SS-20 Demo Kit includes a plate that holds the B900ss-20 radio module, the

antenna and the RS232 interface card.

In order to use it, connect the plate to a PC's COM Port through the supplied serial

cable and connect the power supply (see picture).

On the interface card, ALL the switches have to be set to 'Off' and, of course, the

On/Off switch has to be on the 'On' position.

A Windows Software, 'WinB900' parameterizes and tests the B900ss-20 radio module.

In order to install it on your PC, launch 'Setup.exe' located on the CD-ROM supplied in

the Demo Kit, in the WinB900ss directory.

Serial

Connection to

a PC COM Port

Power Connector

(Battery or Power

Supply)

15

3.5.2. WinB900 Software Utilization in Point-to-Point Mode

The WinB900 Software can have two radio modules communicate between the COM1

and COM2 Port of a PC.

In a first phase, the two modems have to recognize each other ("Acquisition"). Go in

the "Quick Configuration" Menu, to the "Acquisition" Option. When this option is

selected, the software displays the following screen:

Select the table of the chosen channels as well as the No. of Personal network

(between 1 and 65535), and then launch the Acquisition clicking on the "Point-to-Point

Acquisition" button.

After clicking the button, the following message appears:

You can then quit the window. The Modems are synchronized (Green Led on).

16

Consequently, you can communicate between the two Modems with the ‘Point-to-

Point Dialogue’ Option from the "Quick Configuration" menu. When this option is

selected, the software displays the following screen:

The different fields and buttons are described below:

• "Sent Characters" Field

This side of the window sends the data entry.

• "Received Characters" Field

This side of the window shows the received data.

• "Test Frames" Selection

This selection allows the selection for the type of character sent. For example,

0x00 sends a character frame only made of a 0x00 binary character.

If the "Free" frame type is selected, the frame can be typed by the user in the

"Sent Character" field. This frame will then be sent.

17

• "Characters Count" Field

This field allows the selection of the character count to be sent if the selected test

frame type is any other than "free".

• Button: "Send"

This button sends the frame entered previously to the Characters section to be

sent.

• Button: "Continuous"

This button sends continuously the frame entered previously to the Data section

to be sent.

• Button: "Initialization"

This button reinitializes all the counter fields (Elapse Time, Character Count,

Frame Count, etc.)

• Button: "Stop"

This button stops a continuous upload.

• Button: "Quit"

This button leaves this window and returns to the main menu.

• "Character Count Sent/Received" Fields

These fields show the sizes of the sent and received frames.

• "Elapsed time" Field

This field shows how long it takes the modem to upload the same frame during a

continuous upload.

• "Sent/Received/Corrupted Count" Fields

These fields show the amount of frames correctly uploaded, downloaded or

corrupted (or not received) since the start of a continuous upload.

• "Stop on Error" Selection

This selection stops automatically the continuous upload if a frame is corrupted.

18

3.5.3. Use of the WinB900 Software in Network Mode

The operating principle is similar to the Point-to-Point Mode.

In a first phase, the two modems have to recognize each other ("Acquisition"). Go in

the "Quick Configuration" Menu, to the "Network Acquisition" option. When this

option is selected, the software displays the following screen:

It should be noticed that if the Modem already holds a Network Number and Clients,

these two pieces of information will display in the "Network No." and "Clients Count".

If the Network No. is modified, the Server will then lose all the Clients already acquired.

Acquisition can be launched by clicking on the "Acquisition" button. After this, the

following message is displayed:

You can then quit the window. The Modems are synchronized (Green Led (On).

19

You can then communicate between the two Modems with the ‘Network Dialogue’

Option from the "Quick Configuration" Menu. When you pick this option, the software

displays the following:

The different fields and buttons are similar to the ones described in the previous

paragraph at the "Point-to-Point Dialogue" window. Only two new fields appear:

• "Network Number"

This field indicates the Network No. in the Server (COM1).

• "Client Number"

This field indicates the Modem No. in the Client (COM2).

20

3.5.4. Use of the "Terminal" or "HyperTerminal" Software

The Demo Kit or the B900ss-20 radio modules can also be handled from a Windows "HyperTerminal" or

"Terminal" type communication software.

The software has to be configured, in order to communicate at 19200 Baud, 8 bits, no parity, 1 stop bit through a

Serial link. To start with a correct configuration for HyperTerminal and Terminal, the following directories are

provided:

• "B900-CM1.ht" for "HyperTerminal" on COM1.

• "B900-CM2.ht" for "HyperTerminal" on COM2.

• "B900-CM1.trm" for "Terminal" on COM1.

• "B900-CM2.trm" for "Terminal" on COM2.

In this case, if your modems have already been configured and already been "Acquired", you can send data

frames with these software immediately. Otherwise, refer to Chapter 4 (Advanced Operation) to know how to use

the Registers.

21

Chapter 4. Advanced Operation

4.1. General

The section "Basic Operation" showed us how to operate the B900ss-20 Radio Module

and its D900SS-20 Demo Kit.

This section's objective is to know the module more completely; particularly the Hayes

commands necessary to handle the modem.

22

4.2. "Hayes" Protocol Commands

4.2.1. General

These commands configure the Modem assigning different values in the registers (S200

and next). They also enable the user to know the state of the registers and the version

of the modem software. These frames can only be sent if the CTS signal is active except

when in Acquisition Mode.

These commands support the 'Hayes' protocol used by the voice Modems. When a

When a When a

When a

command is sent, it

command is sent, it command is sent, it

command is sent, it always has to be preceded

always has to be precededalways has to be preceded

always has to be preceded by the 'AT' characters (ATtention).

by the 'AT' characters (ATtention). by the 'AT' characters (ATtention).

by the 'AT' characters (ATtention).

When a command has been sent, it

When a command has been sent, it When a command has been sent, it

When a command has been sent, it always has to be followed

always has to be followedalways has to be followed

always has to be followed by the <CR> character

by the <CR> character by the <CR> character

by the <CR> character

(carriage return, Hexadecimal 0x13 code).

(carriage return, Hexadecimal 0x13 code).(carriage return, Hexadecimal 0x13 code).

(carriage return, Hexadecimal 0x13 code).

NOTE:

NOTE:NOTE:

NOTE: The time slot between two characters of the command has to be inferior to

Time-Out (S214). As a result, the commands have to be sent by block:

A T Command Additive command ... <CR>

The sole exception

The sole exception The sole exception

The sole exception is the passing command from the Operation Mode in progress

is the passing command from the Operation Mode in progressis the passing command from the Operation Mode in progress

is the passing command from the Operation Mode in progress to

to to

to

the Hayes Mode: In this case,

the Hayes Mode: In this case,the Hayes Mode: In this case,

the Hayes Mode: In this case, the escape code ('+++')

the escape code ('+++') the escape code ('+++')

the escape code ('+++') has to be followed and

has to be followed and has to be followed and

has to be followed and

preceded by a silence period that lasts at least the same as time out. In this case only,

preceded by a silence period that lasts at least the same as time out. In this case only, preceded by a silence period that lasts at least the same as time out. In this case only,

preceded by a silence period that lasts at least the same as time out. In this case only,

the command will neither be preceded by AT, nor followed by <CR>

the command will neither be preceded by AT, nor followed by <CR>the command will neither be preceded by AT, nor followed by <CR>

the command will neither be preceded by AT, nor followed by <CR>

These commands are described in detail in the next chapter.

23

4.2.2. Description of the standard commands

Here is a description of possible commands:

'+++':

'+++': '+++':

'+++':

Running in Hayes Mode.

Running in Hayes Mode.Running in Hayes Mode.

Running in Hayes Mode.

This command allows the user to return to Hayes Mode when the Modem

is in "Point-to-Point" Mode. It cannot be preceded by AT, only by an idle

time (blank) that can be set through the S214 register for the duration.

NOTE: When the Modem runs in "AT" Mode, it is no longer in radio

receiver.

'ATO':

'ATO': 'ATO':

'ATO':

Running in "Point

Running in "PointRunning in "Point

Running in "Point-

--

-to

toto

to-

--

-Point" Mode.

Point" Mode.Point" Mode.

Point" Mode.

This command allows the user to run the Modem in "Point-to-Point"

Mode. To retrieve the "Hayes" Mode, send out the sequence ‘+++’.

'ATSn?':

'ATSn?': 'ATSn?':

'ATSn?':

Display of the S Number n Register content.

Display of the S Number n Register content.Display of the S Number n Register content.

Display of the S Number n Register content.

The content of the B900ss-20 operating parameters are found in named

'S' registers, and are numbered as described in Chapter VII- 3. Some

parameters are standard for all the Hayes Modems; others are specific to

B900ss-20.

(See Table in Appendix 6).

If the requested register is correct, the modem responds: ''Sxxx=yyy" with

xxx: register number and yyy: register content.

If the requested register is incorrect, the modem responds with the error

character 'E' (0x45).

These parameters are saved in EEPROM Memory and automatically

reloaded during a reset or when powered up.

'ATSn=m':

'ATSn=m': 'ATSn=m':

'ATSn=m':

Assi

AssiAssi

Assignment to the m Value at the S Register n Number.

gnment to the m Value at the S Register n Number.gnment to the m Value at the S Register n Number.

gnment to the m Value at the S Register n Number.

Loading of a parameter in a register. This parameter is automatically saved

in EEPROM Memory.

The n and m values are given in ASCII coded decimals. If the assigned

register is correct, the modem responds with the OK character 'O' (0x4F).

If the assigned register is incorrect or if the value goes over the limits of this

register, the modem responds with the error character 'E' (0x45).

'AT/S':

'AT/S': 'AT/S':

'AT/S':

Content Uncoded Display of all Significant Records.

Content Uncoded Display of all Significant Records.Content Uncoded Display of all Significant Records.

Content Uncoded Display of all Significant Records.

24

All the Modem significant registers (radio configuration, serial

configuration, operating mode...) are sent on the serial link uncoded, ready

to be displayed using a software such as "Terminal" for Windows.

The response is a list of all the used registers with their value, each register

being separated from the other with the "Carriage Return" character (CR):

"S200=xx<CR>S201=yy<CR>…."

'AT/V':

'AT/V': 'AT/V':

'AT/V':

Uncoded Display of the Modem Software Version.

Uncoded Display of the Modem Software Version.Uncoded Display of the Modem Software Version.

Uncoded Display of the Modem Software Version.

The information on the version number, conception date and the program

CRC are sent to the uncoded serial link, ready to be displayed using a

software such as "Terminal" for Windows.

The response is as follows: "Version: x.xx<CR> Date: MM/JJ/AAA<CR>

CheckSum: 0xhhhh<CR>"

'ATM1':

'ATM1': 'ATM1':

'ATM1':

Running in Acquisition Mode.

Running in Acquisition Mode.Running in Acquisition Mode.

Running in Acquisition Mode.

This command allows to toggle from Normal Mode to Acquisition Mode.

The Modem is in Normal Mode by default.

If the command is given correctly, the modem responds with the OK

character 'O' (0x4F), otherwise with the error character 'E' (0x45).

'ATPx':

'ATPx': 'ATPx':

'ATPx':

Running in Standby

Running in StandbyRunning in Standby

Running in Standby or Normal mode.

or Normal mode. or Normal mode.

or Normal mode.

This command allows the user to toggle from Normal Mode to Standby

Mode and vice versa, according to the 'x' value. The Modem is in Normal

Mode by default.

Then there is: x = '0' ! Normal,

x = '1' ! Standby.

If the command is correctly given, the modem responds with the OK

character 'O' (0x4F), otherwise with the Error character 'E' (0x45).

'ATR':

'ATR': 'ATR':

'ATR':

Parameters Reset.

Parameters Reset.Parameters Reset.

Parameters Reset.

This command allows the user to reprogram ALL the stored EEPROM

registers and give them their value by default.

If the command is correctly given, the modem responds with the OK

character, 'O' (0x4F), otherwise with the Error character 'E' (0x45).

4.2.3. Registers Description

This section is available in Appendix 6.

25

4.3. Utilization Example

4.3.1. Acquisition of two Point-to-Point Modems

To send the following commands to the Modem, it is necessary to use software such as HyperTerminal for

Windows.

• Parameterization of the "Master" Modem" :

User: +++ /* run in Hayes Mode. */

Modem response: O<CR>

User: ATS200=3<CR> /* Choice of Frequency table 3. */

Modem response: O<CR>

User: ATS201=0<CR> /* Choice of No. 1 Synchronization

Frequency. */

Modem response: O<CR>

User: ATS202=10<CR> /* Choice of No. 2 Synchronization Frequency. */

Modem response: O<CR>

User: ATS203=20<CR> /* Choice of No. 3 Synchronization Frequency. */

Modem response: O<CR>

User: ATS204=30<CR> /* Choice of No. 4 Synchronization Frequency. */

Modem response: O<CR>

User: ATS220=2<CR> /* Choice of Master Mode. */

Modem response: O<CR>

User: ATS250=1<CR> /* Choice of Personal Network No. */

Modem response: O<CR>

User: ATM1<CR> /* Run in Acquisition Mode */

Modem response: O<CR>

The user now must configure the Slave Modem (see next page). Once this configuration has been

done and the "ATM1" command activated, they acquire themselves and the Master Modem

returns: S252=1<CR> /* Indicates Acquisition done */

26

User: AT0<CR> /* Run in Point-to-Point Mode */

Modem response: O<CR>

27

• Parameterization of the "Slave" Modem:

Before parametering the Slave Modem, the Server must have been configured and must be in

Acquisition Mode.

User: +++ /* Run in Hayes Mode. */

Modem response: O<CR>

User: ATS200=3<CR> /* Choice of the Frequency Table 3. */

Modem response: O<CR>

User: ATS201=0<CR> /* Choice of No. 1 Synchronization Frequency. */

Modem response: O<CR>

User: ATS202=10<CR> /* Choice of No. 2 Synchronization Frequency. */

Modem response: O<CR>

User: ATS203=20<CR> /* Choice of No. 3 Synchronization Frequency. */

Modem response: O<CR>

User: ATS204=30<CR> /* Choice of No. 4 Synchronization Frequency. */

Modem response: O<CR>

User: ATS220=3<CR> /* Choice of Slave Mode. */

Modem response: O<CR>

User: ATS250=0<CR> /* Indicates Uncoded Slave (No Personal Network No.).

*/

Modem response: O<CR>

User: ATM1<CR> /* Runs in Acquisition Mode */

Modem response: O<CR>

At this time, the two Modems have to acquire themselves, and the Slave Modem sends:

Modem response: S250=1<CR>S252=1<CR> /* Indicates Acquisition

done */

User: AT0<CR> /* Runs in Security Transparent Mode */

Modem response: O<CR>

28

4.4. Radio Test Commands

These Special AT commands are integrated in the B900ss-20 in order to measure in

continuous emission, and are primarily used during radio tests (radiated power, line

width, etc.) to respect the Part15-247 FCC standard.

It stops when any character is sent:

• ATT0: Transfer of a pure carrier with the frequency chosen by

the channel command.

• ATT1: Transfer of a modulated carrier '00'.

• ATT2: Transfer of a modulated carrier '01'.

• ATT3: Transfer of a modulated carrier '10'.

• ATT4: Transfer of a modulated carrier '11'.

NOTE: the character <CR> follows each command.

29

4.5. Utilization of WinB900

4.5.1. Hayes commands

The parameterization with the Hayes commands can be simply done with the WinB900

software.

The option "Hayes Commands" of the "Advanced Configuration" allows to perform all

of the Hayes Commands on the modems connected to the PC.

When this option is selected, the software displays the following window:

The top section allows the user to select the port to work on and describes the state of

the serial link (speed, parity, etc.). The serial link state is not directly modifiable: It will

follow the evolution of the values in S210 to S213 registers.

The bottom end sends Hayes commands. All the Registers are present with the content

explanation for each of them.

30

There are four types of possible manipulation:

" Read/Write on the Registers: Select the "ATSxxx" option in the "Available

Commands", then select the required register clicking on it in the "Registers List".

• If you want to read a register, click now on the "Read" button. The "Syntax"

window will display the sent command while the "Radio Module Response"

window will display the B900SS response.

• If you want to write in a register, indicate the value that you want to give to

this register in the "Register Value" window, then click on the "Write"

Button. The "Syntax" window will display the sent command while the

"Radio Module Response" window will display the B900SS response.

" Read the Firmware Version: Select the "AT/V" option in the "Available

Commands", then click on the "Read" button. The "Syntax" window will display

the sent command while the "Radio Module Response" will display the B900SS

response.

" Read the Status Information: Select the "AT/S" option in the "Available

Commands", then click on the "Read" button. The "Syntax" window will display

the sent command while the "Radio Module Response" window will display the

B900SS response.

" Registers Reset to the default value: Select the "ATR" option in the "Available

Commands", then click on the "Read" button. The "Syntax" window will display

the sent command while the "Radio Module Response" will display the B900SS

response.

31

4.5.2. Test Commands (Future software option – Not available at this time)

Carrier Transmission Tests can also be simply realized with the WinB900 Software.

The "Carrier Test" option of the "Advanced Configuration" Menu allows to test Carrier

Transmission from a radio module.

When this option is selected, the software displays the following window:

• "Carrier Transmission" Selection

Through this window, it is possible to transmit several types of carrier to check the

power and the signal modulation. Here are the following Carrier’s choices:

• Pure

• Modulated at ‘00’

• Modulated at ‘01’

• Modulated at ‘10’

• Modulated at ‘11’

Remark:

If a transmission is in progress and you want to change the carrier type, it is

imperative to stop the transmission before selecting another carrier, otherwise

your change will not take effect

• "Radio Channel" Field

This Field available for input specifies the radio channel where the selected carrier

will be transmitted from.

32

• "Transmission" Button

This button allows initiating the selected carrier transmission based on the chosen

channel. When this button is selected, a red rectangle appears indicating that the

modem is transmitting.

• "Stop" Button

This button stops transmitting the selected carrier.

• "Quit" Button

This button returns to the Main Window.

33

Appendix

AppendixAppendix

Appendix 1: Schematic Block Diagram

1: Schematic Block Diagram 1: Schematic Block Diagram

1: Schematic Block Diagram

902 MHz

Transmitter/

Receiver

RF

Switch

PLL

MicroController

+

EEPROM Memory

Interface

RxD

TxD

CTS

RTS

Ack_Tx

Lock

34

Appendix 2: Mechanical Drawings

Appendix 2: Mechanical DrawingsAppendix 2: Mechanical Drawings

Appendix 2: Mechanical Drawings

Drawing of the B900ss-20 Card

WARNING :

WARNING :WARNING :

WARNING : In the "Rev. A" version of the card, the 1° connector contact of the J1 interface

In the "Rev. A" version of the card, the 1° connector contact of the J1 interface In the "Rev. A" version of the card, the 1° connector contact of the J1 interface

In the "Rev. A" version of the card, the 1° connector contact of the J1 interface

(corresponding to the RTS Signal) is "below", as shown on the schematic.

(corresponding to the RTS Signal) is "below", as shown on the schematic. (corresponding to the RTS Signal) is "below", as shown on the schematic.

(corresponding to the RTS Signal) is "below", as shown on the schematic.

In future ("Rev. B, Rev C, etc.” versions, the 1° connector contact of the J1 interface

In future ("Rev. B, Rev C, etc.” versions, the 1° connector contact of the J1 interface In future ("Rev. B, Rev C, etc.” versions, the 1° connector contact of the J1 interface

In future ("Rev. B, Rev C, etc.” versions, the 1° connector contact of the J1 interface

(corresponding to the RTS Signal) will be "above", meaning on the opposite side of its actual

(corresponding to the RTS Signal) will be "above", meaning on the opposite side of its actual (corresponding to the RTS Signal) will be "above", meaning on the opposite side of its actual

(corresponding to the RTS Signal) will be "above", meaning on the opposite side of its actual

position.

position.position.

position.

1.71"

1.57"

Interface Connector

(14FMS-1.0SP-TF) Ground Antenna

(Cold Point)

Antenna Hot Point

1° Connector Contact

(RTS)

35

Interface Signals

The Modem will communicate with the host through an interface with the following

signals:

Bus

Pin Interface Function Signal

direction

µC*

µC Function

1 RTS

Or Data Out SPI (1) O RTS ! Request To Send

Data Out SPI ! Data out during the programming of the Flash

Program.

2 Ack_Tx

Or Clock In SPI (1) I/O Ack_Tx ! Transmission Ok

Clock In SPI ! Clock In during the programming of the Flash

Program.

3 N.U. - -

4 RXD I RxD UART - Serial Data Reception

5 CTS

Or Data In SPI (1) I CTS ! Clear To Send

Data In SPI ! Data In during the programming of the Flash

Program.

6 TXD O TxD UART - Serial Data Transmission

7 VDD - 5 volts power for digital ("noisy").

8 LOCK O Network Synchronization Ok.

9 RESET I External Reset. Also used during the programming of the Flash

Program.

10 GND - Ground

11 N.U. I -

12 N.U. I -

13 N.U. I -

14 N.U. I -

((1): SPI hardware only in slave. The user is connected to this bus only in Flash/EEPROM

Programming: In this case, the RESET signal has to be on.

*I = Input O = Output

NOTE: The connector used is the 14FMS-1.0SP-TF 14-pin manufactured and distributed by

JST.

36

Signals Description

N.U.: Not used. By default, these signals are linked to the micro-controller,

configured at input but are not actually used.

LOCK: Solely used on the Portable: Indicates that the synchronization with the

Base is valid. Latter indicates if the Server is at radio range. Active on

high.

RESET: Reset hardware of the modem card. Maximum Duration: 200 ms. Active

on low.

ACK_TX: Indicates that the buffer transmission has been executed correctly. This

signal is valid at the end of the transmission of a radio message (Active

RTS Signal) and is kept until RTS returns to inactive. Active (buffer

transmitted) on low.

xx SPI: Signals for the Flash or the EEPROM programming of the Modem from

the host. There are three signals: Data In, Data Out and Clock.

When the host wants to read and/or modify the EEPROM, the modem

must absolutely be in reset by activating the RESET Signal.

CTS: Clear To Send: signal into the Modem. Indicates if the Modem can send

serial data to the User (Active on low) or not (Inactive on high).

RTS: Request To Send: signal going out of the Modem. Indicates that the user

can transmit serial data (Active on low) or not (Inactive on high). This

signal switches when the serial reception buffer's filling rate reaches a

programmable threshold (S215) or when the user finished to transmit

serial data (out on Time-Out).

TxD, RxD: Serial link signals in NRZ/TTL format. TxD is for the data going out of the

Modem while RxD is for the data coming into the Modem. Le logic '1' is

represented by high.

37

Connector Drawing

The selected connector is the 14FMS-1.0SP-TF from the JST Manufacturer. It is a CMS

and non-ZIF (Zero Insertion Force) 14-pin angled connector with a spacing of .039".

With: Connector

ConnectorConnector

Connector

A (inch)

A (inch)A (inch)

A (inch)

B (inch)

B (inch)B (inch)

B (inch)

14FMS-1.0SP-TF (14-pin) .511 .630

Connecting Cable Drawing

The associated cable should have the following dimensions:

38

Appendix 3: Ant

Appendix 3: AntAppendix 3: Ant

Appendix 3: Antenna Connection

enna Connectionenna Connection

enna Connection

Here is an example of the coaxial cable connection of the 900MHz antenna provided

with the Demo Kit. The hot and cold point can easily be seen before and after

soldering the cable.

Coaxial Cable

connected to the

antenna.

"Hot" point where to

connect the cable core.

"Cold" Point where to

connect the breading of the

cable

(g

round

)

.

39

Appendix 4: D900SS

Appendix 4: D900SSAppendix 4: D900SS

Appendix 4: D900SS-

--

-20 Demo Kit

20 Demo Kit20 Demo Kit

20 Demo Kit

Composition

The D900SS-20 Demo Kit is used to test with ease the B900ss-20 radio module.

For this purpose, this kit connects a radio module to a serial interface in order to be

able to work with the radio module without having to develop a specific interface.

In addition, Windows configuration and test software is included with the kit and allows

working with the radio module immediately.

In a case, each D900SS-20 Demo Kit includes:

• Two metallic plates, with:

$ 2 900 MHz antenna,

$ 2 B900ss-20 radio module,

$ 2 interface cards connecting B900ss-20 and RS232,

• Two power supplies

• Two 9V batteries, allowing to manage without sector during field tests,

• A CD-ROM including this document in PDF Format and the "WinB900" Test and

Configuration Software for Windows.

B900SS-20

Radio Module

Radio Antenna

RS232

Version 1 Interface

Card

On/Off Switch

8-24V Power Supply Jack

9 pin RS232 Sub-D Connector

40

Connections

Here is how to make the connections to the Demo Kit in order to operate them with

the WinB900 Software:

No. 1 Radio Plate

(Master)

Windows 95/98

PC and two Serial

Ports

No. 2 Radio Plate

(Slave)

COM1

COM2

Power Supply

41

Appendix 5: Timing Diagrams

Appendix 5: Timing DiagramsAppendix 5: Timing Diagrams

Appendix 5: Timing Diagrams

The user sends data

TxD

RTS

Radio

Ack_Tx

Lock

Serial Data

Radio Transmission

Result: Error

TimeOut

Serial Data

Radio Transmission

Result: OK

Serial Data

Radio

Stop on CTS,

Len

g

th ≥ S215

Stop on TimeOut

Len

g

th<S215

If Slave, Master/Slave synchronization just ended correctly.

Active

active

inactive

42

The user Receives data

Radio

CTS

RxD

The CTS signal indicates that the user reception buffer is full. Therefore, the modem does not send data on the serial link

during that time. However, the basic radio operation (synchronization, signal lock, etc.) and the data transmission on the radio

(with data reception on the serial link) continues to operate normally. On the other hand, if another modem sends a data

frame on the radio, this radio frame is not handled (and then not acknowledged). The Transmitter Modem considers this radio

frame as lost and indicates it to the user. (Ack_Tx signal).

It would be better to avoid making the CTS inactive as much as possible.

Data Reception

Serial Data

Data Reception

Serial Data cut in two.

Data Reception

Serial Data

inactive

active

43

Appendix 6: Description of the registers

Appendix 6: Description of the registersAppendix 6: Description of the registers

Appendix 6: Description of the registers

Registers used by the ‘AT’ protocol

This section shows a list of all the registers that configure the modems with software

such as HyperTerminal for Windows.

The B900ss-20 modem will offer several facilities of possible settings.

Each parameter will be in a register and will have a default value that can be changed

in sending the command 'ATSxxx=yy' (Hayes command). Also, the parameter value will

be read when sending the command 'ATSxxx?'.

These parameters are stored in the EEPROM memory and will be available as soon as

powered up.

NOTE: Access Type: 'R' Read and/or 'W' Write.

Access

Type Register Name Description

Frequency Jump

Frequency JumpFrequency Jump

Frequency Jump

R/W S200 No. of Used Frequency Table Between 0 and 8. When Table 0 is selected, the channels

remain the same and stay on the selected channel in S201 (used

for the tests).

Default: 1.

Default: 1.Default: 1.

Default: 1.

R/W S201 First Frequency reserved for

the synchronization. Between 0 and 49. Has to be different from S202, S203 and

S204.

Default: 0.

Default: 0.Default: 0.

Default: 0.

R/W S202 Second Frequency reserved

for the synchronization. Between 0 and 49. Has to be different from S201, S203 and

S204.

Default: 15.

Default: 15.Default: 15.

Default: 15.

R/W S203 Third Frequency reserved for

the synchronization. Between 0 and 49. Has to be different from S201, S202 et S204.

Default: 30.

Default: 30.Default: 30.

Default: 30.

R/W S204 Fourth Frequency reserved for

the synchronization. Between 0 and 49. Has to be different from S201, S202 et S203.

Default: 45.

Default: 45.Default: 45.

Default: 45.

R S206 Dwell Timer Length Calculated based on the serial connection speed (S210), the

buffer size (S215) and the Client Count (S253). Given in

milliseconds.

Default: 110 ms (38400 Bd/130 Bytes/1 client).

Default: 110 ms (38400 Bd/130 Bytes/1 client).Default: 110 ms (38400 Bd/130 Bytes/1 client).

Default: 110 ms (38400 Bd/130 Bytes/1 client).

44

Access

Type Register Name Description

Serial Link

Serial LinkSerial Link

Serial Link

R/W S210 Speed.

Indicates the speed on the Serial Connection

'2': 2400 Baud.

'3': 4800 Baud.

'4': 9600 Baud.

'5': 19200 Baud

'5': 19200 Baud'5': 19200 Baud

'5': 19200 Baud (Default)

(Default)(Default)

(Default).

'6': 38400 Baud

R/W S211 Data Bits (*) Serial Link Data Bits.

'7': 7 bits.

'8': 8 bits (Default).

'8': 8 bits (Default).'8': 8 bits (Default).

'8': 8 bits (Default).

R/W S212 Parity (*) Indicates Serial Link Parity Type:

'1': None (Default).

'1': None (Default).'1': None (Default).

'1': None (Default).

'2': Even.

'3': Odd.

R/W S214 Serial Link Time Out Time_Out in milliseconds. Between 2 and 100 milliseconds.

Default: 5 ms.

Default: 5 ms.Default: 5 ms.

Default: 5 ms.

R/W S215 Buffer Size Indicates the maximum size of the frames that will be given to the

Modem. When this size is reached, the modem resets the CTS

signal. It has to be inferior to the physical size of 130 Bytes.

Default: 130 Bytes.

Default: 130 Bytes.Default: 130 Bytes.

Default: 130 Bytes.

(*): The parity control requires some constraints and the serial configuration described

below can be reset:

S211

S211S211

S211

S212

S212S212

S212

Description

DescriptionDescription

Description

8 1 8 bits, no parity, 1 stop bit (8,N,1)

8 2 8 bits, even parity, 1 stop bit (8,E,1)

8 3 8 bits, odd parity, 1 stop bit (8,O,1)

7 2 7 bits, even parity, 1 stop bit (7,E,1)

7 3 7 bits, even parity, 1 stop bit (7,O,1)

45

Access

Type Register Name Description

Operation

OperationOperation

Operation

R/W S220 Server or Client Mode Indicates the operation of the Modem. When the Modem is

configured as Master (or Server), the S252 Register switches

automatically to 0xFF, while it switches to 0 when configured

as Slave (or Client).

'0' : Server (Network),

'1' : Client (Network),

'2' : Master,

'3': Slave (Default).

'3': Slave (Default).'3': Slave (Default).

'3': Slave (Default).

R/W S221 Recovery Count Maximum recovery count in case of problems (Non-Ack

response to a message).

If this Register is at 0, the frames are not checked and

considered as still good (used for the tests).

Default: 2.

Default: 2.Default: 2.

Default: 2.

P

PP

Personal Network Control

ersonal Network Controlersonal Network Control

ersonal Network Control

R/W S250

Number of Personal Network

(or Network)

This register gives the Personal Network (Network) number on

2 Bytes. Only the two members of a same Personal Network

can communicate with each other. Between 0 and 65535, it is

at 0 when the modem is not reset.

NOTE: To reset the register to 0 also resets the S252 Register

to 0.

Default: 0.

Default: 0.Default: 0.

Default: 0.

R S252 Modem Number Gives the Modem a unique number for a given Personal

Network. Number on one Byte is 0 when the Modem is not

reset, 1 if it is a Slave, between 1 and 6 if it is a Client and 255

if it is the Master.

Default: 0.

Default: 0.Default: 0.

Default: 0.

R S253 Clients Count Gives the Client count of a Master Modem or a Server.

Default: 0.

Default: 0.Default: 0.

Default: 0.

R/W S254 Client Addition Gives the number of a Client to be added in the already set

up network. This number should be between 1 and S253. Only

used on a Network Server.

Default: 0.

Default: 0.Default: 0.

Default: 0.

46

Appendix 7: Revisions History

Appendix 7: Revisions HistoryAppendix 7: Revisions History

Appendix 7: Revisions History

No. of

No. of No. of

No. of

Revision

RevisionRevision

Revision

Date

DateDate

Date

Author

AuthorAuthor

Author

Subject

SubjectSubject

Subject

0.0 01/08/00 GS Document Creation

0.1 08/08/00 GS Modifications after YN reading.

0.2 28/08/00 GS Addition of Network Specifications. Serial configuration MAJ.

0.3 10/10/00 SP English Text, Diagrams and Clarifications

0.4 1/26/01 SP Added FCC Disclaimers (Pages 6 & 16)

0.5 1/31/01 SP Changed Channel Spacing from 200 kHz to 150 kHz (Page 6)

0.6 4/20/01 SP Consolidated FCC Disclaimers to Page 5 and various other

miscellaneous corrections.

0.7 8/7/01 SP Added RF safety warning and removed antenna information per

FCC request

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