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Worlds smallest
UMTS module UC864 and CDMA module
CC864-Dual

Tiny antennas – aerials for smallest and low cost applications

Batteries, Microphones and Loudspeakers
especially designed for your wireless applications
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Round Solutions Ltd.
Regent House
Business Centre
24-25 Knutford Place
Marble Arch
London W1H5YN
UK
Sales inquiries:
Tel +44 (0) 207 569-3210
Fax +44 (0) 207 569-3001
e-mail

Round Solutions
GmbH & Co KG
Im Steingrund 3
63303 Dreieich
Germany
Deutsch:
Tel +49 6103 270440
English:
Tel +49 6103 27044200
Fax +49 6103 27044199
e-mail

Round Solutions Nordics
B Ved Klaedebo 18
DK-2970 Hörsholm
Denmark
Tel: +45 (0)36 96 73 95
Tel: +49 6103 27044 122
Fax: +49 6103 27044 199 Kundtjänst på Svenska:
Tel +49 6103 27044210
e-mail

Round Solutions
Italy
Parliamo italiano
Tel +49 6103 27044220
Fax +49 6103 27044199
e-mail

Round Solutions
Spain - South America
Hablamos el espanol
Tel +49 6103 27044230
Fax +49 6103 27044199
e-mail

 

Basic Knowledge

Q: What is a router ? What is TCP/IP ?

It enables data to be routed between different networks, for example between an Ethernet Local Area Network (LAN) and a GSM, GPRS or PSTN Wide Area Network (WAN). It provides:

  • Protocol conversion at the network address layer typically routing TCP/IP protocols
  • Recovery of TCP/IP protocols from the local Ethernet protocols which are routed over PPP protocols for tranfers over GSM, GPRS and PSTN networks.
  • A firewall features to isolate networks and provide security for private networks.

    • It performs very little filtering; it simply transports TCP/IP protocols between the 2 networks. It is used to create a network with remote access and enables:

  • Private networks to be inter-networked with other networks such as the Internet.
  • Access to a private network
  • Security for the private network

    • TCP/IP is an open protocol or "common language", which enables 2 devices to communicate over a network.

  • The Internet Protocol (IP) enables a device to set up a "connection" to a remote device using a unique address, ie IP address.
  • Transmission Control Protocol (TCP) provides the "connection" between the devices.

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