
7
KX-TG5771BXS/KX-TGA570BXS
4 Technical Descriptions
4.1.
FHSS Description
4.1.1.
Frequency
The frequency range of 5.76 GHz-5.84 GHz is used. Transmitting and receiving channel between Base Unit and Handset is same
frequency. Refer to
Frequency Table
(P.83).
4.1.2.
FHSS (Frequency Hopping Spread Spectrum)
This telephone is using an IC chip which has similar specification to WDCT (World Digital Cordless Telephone) and is the tele-
phone system that can use multiple portable unit simultaneously. The explanation of this system is mentioned below. This sys-
tem uses a Time Division Multiple Access/Time Division Duplex (
TDMA
/
TDD
) scheme:
transmitting and receiving frequencies of the Base Unit and Handset are shared in the same frequency. The construction of RX/
TX frequency data is shown below. It consists of 4 slots from the Base Unit to the Handset, and 4 slots from the Handset to the
Base Unit, total 8 slots in 10 ms. By this slot system, simultaneous air link and communication between 4 Handsets and the
Base Unit can be realized. One communication between Handset and the Base Unit is done by one slot from the Base Unit to
Handset, and another slot from Handset to the Base Unit.
DSS makes spectrum spread by multiplying carrier signal by PN code. The purpose to make spectrum spread is to reduce
power density per time and per band. On the other hand,
FHSS
makes spectrum spread by changing channel every 10 ms
according to Hopping table. Also the purpose to make spectrum spread is to reduce power density per time and per band.
Содержание KX-TG5771BXS
Страница 2: ...2 KX TG5771BXS KX TGA570BXS ...
Страница 6: ...6 KX TG5771BXS KX TGA570BXS 3 Specifications ...
Страница 24: ...24 KX TG5771BXS KX TGA570BXS 4 8 2 Power Supply Circuit Voltage is supplied separately to each block ...
Страница 33: ...33 KX TG5771BXS KX TGA570BXS 4 11 Signal Route Each signal route is as follows ...
Страница 34: ...34 KX TG5771BXS KX TGA570BXS Each signal route is as follows RF part signal route ...
Страница 35: ...35 KX TG5771BXS KX TGA570BXS 5 Location of Controls and Components 5 1 Controls 5 1 1 Base Unit ...
Страница 37: ...37 KX TG5771BXS KX TGA570BXS 5 2 3 Handset Menu Icons ...
Страница 40: ...40 KX TG5771BXS KX TGA570BXS 6 5 Expanding Your Phone System ...
Страница 41: ...41 KX TG5771BXS KX TGA570BXS 7 Operation Instructions 7 1 Symbols Used in These Operating Instructions ...
Страница 43: ...43 KX TG5771BXS KX TGA570BXS ...
Страница 44: ...44 KX TG5771BXS KX TGA570BXS 7 2 2 Programming Using the Direct Commands ...
Страница 46: ...46 KX TG5771BXS KX TGA570BXS 7 4 Error Messages ...
Страница 47: ...47 KX TG5771BXS KX TGA570BXS 7 5 Troubleshooting ...
Страница 48: ...48 KX TG5771BXS KX TGA570BXS ...
Страница 49: ...49 KX TG5771BXS KX TGA570BXS ...
Страница 69: ...69 KX TG5771BXS KX TGA570BXS 10 2 9 1 RF DSP Interface Signal Wave Form Test Burst Mode ...
Страница 70: ...70 KX TG5771BXS KX TGA570BXS Test Burst Mode ...
Страница 77: ...77 KX TG5771BXS KX TGA570BXS 11 1 2 Handset ...
Страница 78: ...78 KX TG5771BXS KX TGA570BXS 11 1 3 Charger Unit ...
Страница 79: ...79 KX TG5771BXS KX TGA570BXS 11 2 Fix the LCD and the Receiver Guide to the Main P C Board Handset ...
Страница 91: ...91 KX TG5771BXS KX TGA570BXS Memo ...
Страница 100: ...100 KX TG5771BXS KX TGA570BXS Memo ...
Страница 109: ...109 KX TG5771BXS KX TGA570BXS 15 3 Explanation of IC Terminals RF Part 15 3 1 IC701 ...
Страница 110: ...110 KX TG5771BXS KX TGA570BXS 15 3 2 IC801 Backside Terminal GND ...
Страница 111: ...111 KX TG5771BXS KX TGA570BXS 15 3 3 IC851 Backside Terminal GND ...
Страница 112: ...112 KX TG5771BXS KX TGA570BXS 15 4 Terminal Guide of the ICs Transistors and Diodes 15 4 1 Base Unit 15 4 2 Handset ...
Страница 113: ...113 KX TG5771BXS KX TGA570BXS 16 Exploded View and Replacement Parts List 16 1 Cabinet and Electrical Parts Base Unit ...
Страница 115: ...115 KX TG5771BXS KX TGA570BXS 16 3 Cabinet and Electrical Parts Charger Unit ...
Страница 116: ...116 KX TG5771BXS KX TGA570BXS 16 4 Accessories and Packing Materials 16 4 1 KX TG5771BXS ...
Страница 117: ...117 KX TG5771BXS KX TGA570BXS 16 4 2 KX TGA570BXS ...