Communication System - ELETRONICALENGINEERING · Communication System DGS-100 ... FM-to-AM...

Communication System

DGS-100

GSM /GPS Experimental Set

Hardware Specification

1. Support ETSI GSM 07.07, ETSI GSM 07.05, FAX class 1,

TCP/IP protocol

2. Bandwidth : 850/900/1800/1900MHz

3. GPRS follows PPP(Point-to-Point Protocol) transmission

protocol

1. SiRF star high performance GPS chipset

2. Support NMEA0183 data protocol

3. Built-in patch antenna, bandwidth 1575.42MHz

Ⅲ

GPS Module : Global Positioning Service module EM-406A

1. 8KB flash memory, 256 byte RAM

2. Micro-controller is responsible for transferring longitude

and latitude message received from GPS module. The

related message will be sent to GSM module through

GPRS service to appointed IP address.

Micro-controller : Philip P89LPC922FN

GSM/GPRS Module : Telit GM862-Quad

DGS-100 covers two modern commun-

ication topics GPS technology and GSM/

GPRS technology.

In GPS module, the GPS receiver decodes

the NMEAdata strings from the satellites and

output to software interface for the discussion

of current position, speed, direction, time, etc.

In GSM/GPRS module, the usage of AT

commands is introduced. Students can use

software interface to send AT command to

control GSM/GPRS module to send SMS

message, make a phone call through headset

interface, or access to the Internet.

When integrating both GPS and GSM/GPRS

modules, the position data received by GPS

module is sent to Internet by GPRS module to

report the present location displayed in GoogleMap Website.

Software Function

The user interface supports a friendly and clear experimental

environment. All experiments can be implemented step by

step. Moreover, students can follow the relevant description of

each step listed in our manual to complete the experiment

easily.

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Notebook is excluded*

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�Specifications

FeaturesIt’s a powerful wireless communication experimental

platform for training and education, integrating GSM/GPRS

and GPS modules and FAX Class1, TCP/IP, NMEA0813

and ETSI GSM 07.07 protocols into one set.

Local SIMcard is required*


List of Experiments

Exp1-1 : GPS module baud rate setting

Exp1-2 : GPS module update rate control

Exp2-1 : DGS-100 dials cell phone by AT command

Exp2-2 : DGS-100 answers cell phone by AT command

Exp2-3 : DGS-100 sends message to cell phone by AT

command

Exp2-4 : DGS-100 receives cell phone message by AT

command

Exp2-5 : DGS-100 checks signal quality by AT command

Exp2-6 : DGS-100 connects to internet

Exp 3 : Micro-controller experiment

Exp 4 : DGS-100 application experiment

1. DGS-100 experimental : 1set

2. RS-232C serial port : 1 pce

3. GSM antenna (bandwidth:GSM 850/900/1800/1900) : 1pce

4. AC adapter (input AC 100~240V, output DC 9V/1A ) : 1pce

5. Microphone-earphones: 1set

6. Audio line : 1pce

7. Battery container : 1pce (without battery)

8. Experimental manual : 1pce

9. CD-ROM : 1pce

DGS-100

� Accessories�


KL-900A

Basic Communication Trainer

KL-900A offers experiments for

fundamental technical concepts in

telecommunication. It enables students

to acquire a clear experimental view

and further, they will be familiar with

the operative aspects of the work in

the telecommunication laboratory.

The trainer includes the basic modules with experimental

circuits. It offers the beginner complete courses of basic

analog and digital communication.

quipped with power supply and signal unit. Students

only have to adopt the oscilloscope to complete various

experiments independently.

System modularity maximizes flexibility and variety for

experimentation, and allows possibility for expansion and

customization.

KL-900Ais e

Experiment Modules

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1. 2mm connection leads are used throughout the system.

2. The building blocks and components symbols of the circuits

are printed on the surface of each module.

3. All modules are secured in plastic housings (297 x 226 x 60mm).

4. Cabinet for all modules storage facilities

5. Complete experimental manual and teacher's guide

List of Modules

1. Analog Communication Modules (KL-900A1)

(1) KL-93001 Oscillator /Second Order LPF & HPF

(2) KL-93002 AM Modulator /Demodulator

(3) KL-93003 DSB-SC & SSB Modulator /Demodulator

(4) KL-93004 FM Modulator /Demodulator

(5) KL-93005 PLL Frequency Synthesizer

(6) KL-93006

(7) KL-93007 FDM Multiplexer /Demultiplexer

(8) KL-93008

(New)

2. Digital Communication Modules (KL-900A2)

(1) KL-94001 A/D D/A Converter Applications

(2) KL-94002 PWM Modulator /Demodulator

(3) KL-94003 FSK Modulator /Demodulator

(4) KL-94004 CVSD Modulator /Demodulator, Manchester

Code Encode/Decode

,

(5) KL-94005 ASK Modulator /Demodulator

(6) KL-94006 PSK/QPSK Modulator

(7) KL-94007 PSK/QPSK Demodulator

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Specifications�

Features

Oscilloscope is excluded*

TDM&PAM-TDM Multiplexer/Demultiplexer(New)

Signal Converter/Recovery/Regeneration(New)

KL-92001 Power Supply & Audio Generator Module

3. Others

(1) RF Oscillatora. Oscillator frequency : 500KHz , 10MHzb. Power supply : +12V

(2) Second order LPF and HPFa. Low pass -3db frequency : 1KHz , 10KHzb. High pass -3db frequency : 800Hz , 8KHzc. Power supply : +12V , -12V

1. KL-93001 Oscillator /Second Order LPF & HPF

Analog Communction Modules

KL-93001 KL-93002 KL-93003 KL-93004

KL-93005

(1) AM modulatora. Carrier signal : 100KHz ~ 2MHzb. Audio signal : 1KHz ~ 3KHzc. Power supply : +12V, -5V

(2) AM demodulatora. Carrier signal : 100KHz ~ 2MHzb. Audio signal : 1KHz ~ 3KHzc. Power supply : +12V, -12V

2. KL-93002 AM Modulator /Demodulator

(1) DSB-SC and SSB modulator

DSB-SC modulatora. Carrier signal : 500KHz ~ 1MHzb. Audio signal : 1KHz ~ 2KHzc. Power supply : +12V, -5V

a. Carrier signal : 453KHzb. Audio signal : 1KHz ~ 2KHz

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SSB modulator�

3. KL-93003 DSB-SC & SSB Modulator /Demodulator

(2) DSB-SC and SSB demodulator

a. Carrier signal : 500KHzb. Audio signal : 1KHz ~ 3KHzc. Power supply : +12V

a. Carrier signal : 453KHzb. Audio signal : 2KHz

DSB-SC demodulator

SSB demodulator

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Lm566 modulatorKHz ~ 20KHz

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a. Carrier Signal : 2b. Audio Signal : 1KHz ~ 5KHzc. Power Supply : +5V, -5V

4. KL-93004 FM Modulator /Demodulator

(2) DSB-SC and SSB demodulator

a. Carrier signal :

b. Audio signal : 1KHz ~ 5KHz

c. Power supply :

a. Carrier signal : 500KHz

b. Audio signal :

LM565 demodulator

2KHz ~ 20KHz

+5V, -5V

FM-to-AM demodulator

~ 2MHz

1KHz ~ 5KHz

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(1) Frequency selection range : 1KHz ~ 1.5MHz

(2) Reference frequency : Crystal osc.

1KHz or 10KHz

(3) Phase detector & VCO : IC 4046

(4) Adjustable capture range

(5) Adjustable lock-in range

5. KL-93005 PLL Frequency Synthesizer

(A) Audio signal generator

a. Triangle generator : 100Hz ~15KHz, 7Vpp

b. Square generator : 100Hz ~15KHz, 7Vpp

c. Sine generator : 800Hz ~ 65KHz, 7Vpp

(B) Analog switch multiplexer

a. TDM channel : Channel A, B, C 3 port

b. Switch SYN. voltage level 7Vpp

c. TDM switch frequency : 1MHz, 5KHz, 50KHz,1KHz

d. TDM frame generator :

. FSYNO : TDM frame synchronal transmit pulse

: TTL level

. FCLKX : TDM transmit data clock : TTL level

. FSX : TDM data frame transmit synchronal pulse

: TTL level

e. TDM frame auto start level for synchronization

: TTL Level

Ⅰ

Ⅱ

Ⅲ

6. KL-93006 TDM&PAM-TDM Multiplexer/Demultiplexer(New)

(1) Frequency modulator

a. Carrier signal : 2MHz ~ 3MHzb. Audio signal : 3KHz ~ 8KHzc. Power supply : +5V

MC 1648 modulator�

(A) FDM multiplexer channel : Channel A,B,C 3 port

(B) Wien bridge audio signal generator

a. Variable sine generator : 2KHz ~ 50KHz 7Vpp

b. Fixed sine generator : 3KHz, +/- 10%, 7Vpp

c. Fixed sine generator : 1KHz, +/- 10%, 7Vpp

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7. KL-93007 FDM Multiplexer / Demultiplexer (New)

(1) TDM multiplexer

(2) High speed analog PAM-TDM multiplexer

(1) FDM multiplexer

KL-93006 KL-93007 KL-93008

KL-900A

Audio signal PAM-TDM simultaneously multiplexer

(3) TDM simultaneous (not single channel) multiplexer

(A) Analog switch demultiplexer

a. TDM Mix signal level 6Vpp

b. Switch voltage level 6Vpp

c. TDM switch frequency : 1MHz, 5KHz, 50KHz, 1KHz

d. FSYNI : TDM start frame input : TTL level

e. Auto start frame detector : TTL level

(B) TDM demultiplexer output : Channel A, B, C 3 port

(C) TDM frame receiver counter : F0~F7

: 8 bit TTL level

(C) HARTLEY carrier signal generator

a. Trimming carrier generator : 500KHz, +/- 10%, 7Vpp

b. Trimming carrier generator : 300KHz, +/- 10%, 7Vpp

c. Fixed carrier generator : 100KHz, +/- 5%, 7Vpp


NewNewNew

(1) PWM modulator

a. Carrier signal : 1.5KHz~2KHz

b. Audio signal : 500Hz

c. Power supply : +12V, -12V

a. Carrier signal : 5KHz~10KHz

b. Audio signal : 1KHz

c. Power supply : +12V

(2) PWM demodulator

a. Audio signal : 500Hz~700Hz

b. Modulation signal : 5KHz~6KHz

c. Demodulation signal : 500Hz~700Hz

D. Power supply : +12V

LM741 PWM

LM555 PWM

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10.KL-94002 PWM Modulator /Demodulator

(1) FSK modulator

a. “SPACE” signal : 1270Hz

b. “MARK” signal : 1070Hz

c. Output voltage : 0~5V

d. Power supply : +12V, -12V

(2) FSK demodulator

a. signal : 1270Hz

b. signal : 1070Hz

c. Output voltage : 0~5V

d. Power supply : +5V, -5V

“SPACE”

“MARK”

11.KL-94003 FSK Modulator /Demodulator

(1) CVSD modulators & demodulators(2) Manchester code encode & decode

a. Encode of manchester codeb. Decode of manchester code

12.KL-94004 CVSD Modulator /Demodulator, ManchesterCode Encode/Decode

13.KL-94005 ASK Modulator /Demodulator

(1) ASK modulator


b. Modulated signal : 1KHz~10KHz

(2) ASK demodulator



Asynchronous envelope detector of ASK demodulator


Synchronous product detector of ASK demodulator


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Digital Communication Modules

KL-94001 KL-94002 KL-94003 KL-94004

KL-94005 KL-94006 KL-94007

(1) Analog to digital converter

a. Resolution : 8 bits or 256 steps

b. Clock frequency : 100KHz~800KHz

c. Input voltage range : 0~5V

d. Power supply : +5V

(2) Digital to analog converter

a. Digital input : 8 bits

b. Output voltage type : Single or bipolar

c. Power supply : +12V, -12V

9. KL-94001 A/D D/A Converter Applications,(D) AM modulatora. Carrier signal : 100KHz ~ 500KHzb. Audio signal : 1KHz ~ 20KHzc. Modulation rate & level : 10% ~ 100%d. FDM high bandwidth SUM : 1Hz ~ 1MHz

(A) FDM demultiplexer channel : Channel A,B,C 3 port(B) AM band tune

Carrier bandpass filter BPF : 3 channel input : 3VppChannel A : 500KHz Adj.+/- 20%, BW:100KHz,+/- 10%Channel B : 300KHz Adj.+/- 20%, BW:100KHz,+/- 10%Channel C : 100KHz Adj.+/- 20%, BW:100KHz,+/- 10%

(C) AM demodulatora. AM rectifierb. Adjust LPF

LPFA : Min :1KHz Adj.+/- 20%, Max :30KHz Adj.+/- 20%

d. FDM demultiplexer audio signal output :Channel A : Sine : 3KHz ~ 20KHz, 4VppChannel B : Sine : 3KHz, +/- 10%, 4VppChannel C : Sine : 1KHz, +/- 10%, 4Vpp

LPFB : Min:1KHz Adj.+/-20%, Max:30KHz Adj.+/-20%LPFC : Min : 250Hz Adj.+/-20%, Max :2.5KHz Adj.+/-20%

+/- 10%,

a. Frequency range : 300Hz ~ 10KHz

b. Analog output level : 7Vpp

c. Analog utput : SIN( ), COS( )

d. Analog distortion < 0.1%

e. Digital output : TTL, TTL with 90°phase shift

c. Second order 33

Adjustable s

o ω ωt t

a. AD633 multiplier

Frequency A input : 10KHz ~ 1MHz

Frequency B input : 10KHz ~ 1MHz

b. Second order LPF. down converter : 1KHz ~120KHz

HPF. up converter : 0KHz ~1MHz

d. External input LPF. & HPF. for other up/down converter

a. Up converter for double carrier input : Vin(min) : 0.5Vpp

b. PLL. & PLL/2

c. econd order LPF : Remove harmonic for

carrier sine signal recovery

d. Adjust phase shift : 0 to 150 degrees phase shift (fin=10kHz)

a. Manchester encoder enclosed synchronal signal : TTL level

b. Clock and clock delay XOR. for double clock : TTL level

c. PLL for synchronal clock recovery output : TTL level

8. KL-93008 Signal Converter /Recovery /Regeneration (New)

(2) FDM demultiplexer

14.KL-94006 PSK/QPSK Modulator

(1) PSK/QPSK Modulator

a. Data speed : 400bps ~ 1000bps

a. Carrier signal : 7KHz

Production & measurement of data stream of QPSK

QPSK modulator

b. Data speed : 400bps

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KL-900A

(1) Quadrature audio generator

(3) Carrier signal recovery

(2) Up/down frequency converter

(4) Synchronal clock recovery


Digital Communication

1. Analog to digital experiment

2. Digital to analog experiment

3. PWM modulator experiment

4. PWM demodulator experiment

5. FSK modulator experiment

6. FSK demodulator experiment

7. CVSD modulators & demodulators /manchester code

encode/decode

8. ASK modulator / emodulator

9. PSK/QPSK modulator / emodulator

d

d

Accessories (KL-98001)Standard Accessories

1. Connector leads : 1 set

2. Experiment manual : 1pce

3. T

4. AC cord : 1 pce

5. Storage cabinet : 2 sets (KL-99001)

6. DC connection plug : 2 pcs

eacher guide : 1 pce

Optional Accessories

1. Rack frame (KL-97001)

2. RF generator (KI-2220)

3. Digital storage oscilloscope with FFT

Storage cabinet (KL-99001)

Option : Rack frame. (KL-97001)

Option : KI-2220 150MHz RF generator

Power Supply and Audio Generator Module

16.KL-92001

(1) Fixed DC power supply

a. Output voltage : +5V, -5V, +12V, -12V

b. Output current : +5V/0.3A, -5V/0.3A,

+12V/0.3A, -12V/0.3A

c. Output connector : 2 x 5 pin DIN connector

d. Output overload protection

(2) Variable DC power supply

a. Output voltage : 0V~15V

b. Output current : 0.5A

c. Output overload protection

KL-92001

(3) Generator

a. Frequency : 10Hz~200KHz

b. Output waveforms : Sine, triangle, square

c. Output impedance : 50 Ω

d. Output attenuation : 0, -20dB

e. Output amplitude : 10Vp-p (at open)

f . TTL output

Audio generator (1)

Audio generator (2)

a. Frequency : 10Hz~200KHz

b. Output waveforms : Sine, triangle, square

c. Output impedance : 50 Ω

d. Output attenuation : 0, -20dB

e. Output amplitude : 10Vp-p (at open)

f . With VCF input

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List of Experiments

Analog Communication

1. RF oscillator experiment

2. Second order LPF & HPF experiment

3. AM modulator experiment

4. AM demodulator experiment

5. DSB-SC and SSB modulator experiment

6. DSB-SC and SSB demodulator experiment

7. FM modulator experiment

8. FM demodulator experiment

9. PLL frequency synthesizer

15.KL-94007 PSK/QPSK Demodulator

(1) PSK/QPSK Demodulator

Carrier signal : 7KHz

10. TDM multiplexer experiments

11. TDM demultiplexer experiments

12. FDM multiplexer experiments

13. FDM demultiplexer experiments

14. Multiplier frequency up/down converter experiment

15. Carrier frequency recovery experiment

16. Synchronous clock recovery experiment

KL-900A

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KL-900B

Analog Communication System

KL-900B Analog Communication System

discloses the secret of the walky-talky based

on the 144MHz VHF band. It breaks the circuit

of walky-talky into 4 blocks : receiver block,

transmitter block, audio amplifier block and

microphone amplifier block. Block diagrams

are printed clearly on the panel of the module,

giving students a comprehensive view of how

walky-talky works.

Experiment Modules

1. 2mm connection leads are used throughout the system

2. The building block diagrams are printed on the surface of

each module.

3. Modules are secured in plastic housings(297x226x60mm)

List of Modules

1. Analog Communication System Module

(KL-93051/KL-93052)

(1) General characteristics

a. Frequency range : 144~146 or 144~148 MHz

b. PLL range : 130~170 MHz

c. Modulation type : FM

d. Channel setting step : 5, 10, 12.5, 20, 25, 50KHz

e. Antenna impedance : 50 Ω

f . Squelch sensitivity : 0.16 μVmax

g. Audio output : 250mW

h. Maximum offset : ±5KHz

i . 1st IF signal : 21.8MHz

j . 2nd IF signal : 455KHz

(2) Key-Pad function

a. SQL : To eliminate the “ZA” noise on FM

b. Volume : Power switch /volume control

c. TX/RX LED : Signal transmitter / receiver indicator;

red (transmitting) green (receiving)

d. Channel : Channel selector

e. M.S. socket : External MIC or speaker

f . Function key

g. PTT : Exchange transmitting and receiving

function

1. Analog Communication System Module

(KL-93051/KL-93052)

2. Power Supply Module (SPS-001)

144MHz VHF FM Transceiver Trainer

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Specifications

Features144MHz VHF FM transceiver trainer

2 modules form basis for over 9 fully documented experiments

Includes experiment and instructor's manual

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2. Power Supply Module (SPS-001)

(1)Fixed DC power supply

a. Output voltage : +5V, -5V, +12V, -12V

b. Output current : +5V/3A, -5V/0.3A, +12V/0.3A,

-12V/0.3A

c. Output connector : 5 PIN DIN connector

d. With output overload protection

List of Experiments

1. Introduction to Analog Communication System

2. Microphone Amplifiers

(1) Resetting the transceiver

(2) Setting the channel frequency

(3) Expanding frequency range

(4) Operating two keys

(5) Operating SET key

(1) Measuring PTT DET output

(2) Measuring transmitted signal

(3) Measuring MIC-AMP (LIM) output

(4) Measuring MIC-LPF output

3. Phase-Locked Loops

4. Voltage-Controlled Oscillators

(1) Measuring crystal oscillator output

(2) Measuring data, clock and LE in receiving

(3) Measuring data, clock and LE in transmitting

(4) Measuring phase comparator inputs

(5) Measuring phase comparator output

(1) Measuring RX VCO characteristic

(2) Measuring TX VCO characteristic

5. RF Power Amplifiers

6. RF Amplifiers

(1) Measuring TX POWER AMP input and output

(2) Measuring APC AMP input and output

(1) Measuring RF AMP input

(2) Measuring RF AMP output

(3) Measuring BPF output

8. FM Demodulators

9. Audio Amplifiers

(1) Measuring second mixer output

(2) Measuring 2nd FILTER output

(3) Measuring S-MET AMP output

(1) Measuring AF PREAMP input

(2) Measuring AF PREAMP output

(3) Measuring AF POWER AMP output

Accessories (KL-98002)1. AC cord : 1 pce

2. Instructor's manual : 1 pce

3. Experiment manual : 1 pce

4. VHF, FM transceiver : 1 set

KL-900B

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7. Mixers and IF Amplifiers

(1) Measuring RX VCO output

(2) Measuring 1st MIXER output

(3) Measuring CRYSTAL BPF output

(4) Measuring 1st IF AMP output

(5) Measuring 1st IF AMP input and output


KL-900C

AM/FM Transmitter & Receiver System

1. KL-93061 AM Transmitter

(1) AM transmitter is perfect to produce 1MHz.

(2) Work with AM receiver experiment modules for

experimenting on AM communication system

(3) Basic experiment curriculum includes :

crystal oscillator, modulator percentage, sine wave/voice

modulator, balance modulator, RF amplifier, adjustment

of the coupling, antenna adjustment

(4) Equipped with DIP switch for fault simulation,

students can practice their troubleshooting skills by setting

the switch to different positions.DIP

AM Transmitter & Receiver FM Transmitter & Receiver

2. KL-93062 AM Receiver

(1) AM receiver frequency range : 535KHz ~ 1605KHz

(2) Intermediate frequency : 455KHz

(3) AdoptAM transmitter experiment modules for implementation

of AM communication system.

(4) Basic experiment curriculum includes oscillator mixer,

1st IF amplifier, 2nd IF amplifier and audio amplifier.

(5) With DIP switch for fault simulation,

students can practice troubleshooting skills by setting the

DIP switch to different positions.

(2) Work with FM receiver experiment module to perform

the experiment of FM communication system.

(3) Basic experiment curriculum includes

crystal oscillator, frequency modulator, RF buffer, reference

oscillator, frequency tachometer and audio modulator.

(4) Equipped with DIP switch for fault simulation, students

can practice troubleshooting skills by setting the DIP

switch to different positions.

4. KL-93064 FM Receiver

(1) FM receiver frequency range : 88MHz 108MHz

(2) Frequency is shown by 7 segment LED display

(3) Basic experiment curriculum includes tuner, FM IF

amplifier, FM MPX and audio amplifier.

(4) Student can practice troubleshooting skills by setting the

DIP switch to different positions for failure simulation.

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5. CI -18001 Power Supply

(1) Output : ±5V, 0.5A; ±12V, 0.5A

(2) Input : AC 110/220V

6. Module Description

(1) 2mm gold plated plug

(2) Components, symbols and building blocks are printed

on fiber PC board. Circuit components are fixed on

backside.

(3) Module is fixed on the transparent acrylic housing.

7. Accessories (KL-98003)

(1) Experiment manual

(2) Small type adjustable antenna

(3) Mini-microphone

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Specifications

Features

System consists of AM transmitter and receiver and FM

transmitter and receiver

Modules have switched fault DIP switches for fault-finding

experiments

Includes full documentation

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3. KL-93063 FM Transmitter

(1) With perfect FM transmitter which is able to produce

10.7MHz Intermediate frequency

The KL-900C AM/FM Transmitter and Receiver System is a comprehensive and self-contained system

suitable for demonstrating AM and FM transmission. The system contains four separate modules - the AM

transmitter, AM receiver modules, FM transmitter and FM receiver modules.


KL-900D

Fiber-optic Transmission Training System

Fiber-optic communication is one of the most

popular technologies in the modern days due to its

high transfer speed and large capacity KL-900D

uses fiber optic as a transmission media for the

whole experiment. With four different data

transmission ways (self module transmission,

module-to-module transmission, PC-to-module

transmission and module-to PC transmissions)

and various different modulation / demodulation

methods (CVSD, FSK, etc ) introduced in the training

system, users can obtain a very clear view of how

fiber-optic transmission works.

.

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.

1. Power : AC-DC Adapter

2. Microphone Circuit

(1) AC input : 100 240V

2) DC output 15V, 500mA

(1) Frequency range Hz ~ 12KHz

With gain 20 amplified circuit

~

( :

: 20

(2)

(1) N.O. Type

(2) With LED indication

(1) Output sine wave with adjustable output amplitude

(2) Output square wave, with CMOS level

(3) Frequency range : 6Hz ~ 2KHz

(1) 8Ω, 1/4W

(1) Optical fiber light : Red LED, 660nm

(2) Max. drive current : 50mA

(3) Effective coupling micro-lens spotlight

(4) Emitter follower

3. Push-button Switch

4. Function generator

5. Output Speaker

6. Transmitter

λ=

7. Receiver

8. Data transmission elements

λ

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-

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(1) Optical receiving diode

a. peak : 880nm

b. Connectable plastic optical fiber with 1000μm core

c. Effective coupling micro lens spotlight

d. Max. consumption power : 100mW

(2) With amplified, gain, restoring sharpness circuit

(1) Chip set : AVR8515, 8bits, 8MHz crystal

(2) LCD : back light 20 x2 letter chip

(3) Keyboard : 4 x 4 16Key

(4) Character mode : single letter or string letter available

(5) Send mode : OFF, transceiver, PC module

Module PC

( With reset function

( Communication interface : RS 232C, 9600 baud rate

(8) Software environment : Windows base

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7)

Experiment Modules

1. 2mm connection leads are used throughout the system

2. The building blocks and components symbols of the

circuits are printed on the surface of each module.

3. Modules are secured in plastic housings

(255 x 165 x 30mm ±10%)

4. Comprehensive experimental manual

5. Use bridge plugs on circuit loop to reduce the possibility

of errors

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Notebook is excluded*


Specifications

FeaturesWith four different data transmission ways (self module

transmission, module-to-module transmission, PC-to-module

transmission, and module-to-PC transmissions).

The equipment that you assemble will transmit voice from one

point to another, using light traveling through an optical fiber.

The experiment KL-900D will show you how easy it is to

make productive use of fiber optic materials.

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Main Unit (KL-95001)�

KL-900D

1. Characteristic of fiber optics experiment

2. Applications of fiber optics experiment

3. Light sources of fiber optics

4. Light and fiber optics interaction experiment

5. Fiber optic transmitters experiment

6. Receivers for fiber optic system experiment

7. Fiber optic expand and network experiment

8. Fiber optic connectors and lose-polishing experiment

9. Fiber optical data-transmission-self-transceiver experiment

10. Fiber optical data-transmission-double-transceiver

experiment

11. Fiber optical data-transmission - PC module experiment

12. Fiber optical data-transmission - module PC experiment

13. Fiber optical data-transmission - CVSD modulation &

demodulation experiment (optional)

14. Fiber optical data-transmission - ASK modulation &


15. Fiber optical data-transmission - PSK/QPSK modulation &


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List of Experiment

1. 2mm 2mm test lead 1 set

2. Plastic fiber optics 1 set

3. Experiment manual

4. 9P-9P cable

5. Transceiver software disk

6. AC-DC adapter power module

7. Connection plug pitch =10mm

8. Headphone and microphone

- -

Accessories (KL-98004)

1. KL-92001 Power Supply and Audio Generator Module

2. KL-94004 CVSD Modulator/Demodulator, Manchester

Code Encode/Decode

3. KL-94005 ASK Modulator/Demodulator

4. KL-94006 PSK/QPSK Modulator

5. KL-94007 PSK/QPSK Demodulator

Option Modules� �

�


KL-92001 KL-94004

KL-94005 KL-94006

KL-94007

Communication System - ELETRONICALENGINEERING · Communication System DGS-100 ... FM-to-AM...

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