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COMMUNICATIONS

COMMUNICATIONS

Through out history what human kind has learned is that communication is the key to victory

Data terminal is a peripheral system that is connected to radios for transferring data as code instead of text without any changes in the radio structure. Rate of transmission in this terminal is 1200d/s. The keypad includes totally 16 buttons.

 

Existence of a receiver beside the standard radio which has the capability of receiving and transmitting helps the commanders to be informed about the transmitted messages in the other communication networks and even intercept the enemy. This receiver is designed to receive or intercept the active radio channels in the communication centers or...

This system is designed for being used in radio propagation centers like operation centers, radar sites, military airport control towers to establish connection between fixed posts equipped with telephone line to mobile users in the radio networks as well as connecting radio networks with different frequency (e.g. VHF to HF) together. It is not...

This tactical telephone center is designed for using in commanding centers in two tactical and normal modes which are different regard­ing MDF connections. The tactical models are available as rack-mounted or manpack models. In manpack models the system are pro­tected by external case and front/rear panels. Connecting to magnetic lines,...

SDH-930 is a new generation of SDH system which is able to transfer data and TDM traffic simultaneously over STM-4 signal with bit rate of 622Mbps. Having four STM-4 interface, the SDH-930 could be used as combiner terminal, combiner with add/remove facil­ity, regenerator in different structures of network like linear, ring and mesh. Various...

This system is a powerful, economic and modular combiner with facility of add/remove. SDH-910 is useful for communications operators, internet providers, and the companies that want to connect to LAN networks in long distances. Configuring as a combiner terminal, add/ remove facility, regenerating are some of features of this system which could...

This system is used for transferring telephone lines, hot lines, magnetic lines, (V35/V36) Nx64 and Ethernet, E&M between local units and remote. The interface between local unit and remote is pair wire (via GSHDSL card) or fiber optic (for point to point or STM1 loop). Also connection via E1 using radio is possible. This system includes...

GTU-33 connects data equipment to the network or transferring system via E1 interface. Between famous scenario connection of rooters to PDH/SDH equipment could be mentioned which are normally without data interface. Also to TDM and data traffic could be combined to Add/Drop mode.

The normal SHDSL modems use a pair wire for duplex communication that causes limitation in receiver sensitivity due to crosstalk of adjacent channels. The DSL25 modem operates in simplex mode and used a pair wire (2.1mm) up to length of 25Km. this bit rate could be decreased to reach longer distances.

The modems could be managed via V.24...

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