212.Radio Trunk System (RTS)
A full Duplex, Mobile Radio Telephone System to provide extension of six Trunk lines over duplex RF channels in a grid communication network. RTS consists of Radio Trunk Central (RTC) that functions as a Radio exchange, and Radio Trunk Extensions (RTE) that functions as mobile subscribers.
213.Radio Local System (RLS)
to extend the facilities of TIDEX or any field automatic exchange to a remote Radio Local Extension (RLE) where laying of telephone cables is difficult (across a river, hilly terrain etc) or when the communication needs to be set-up in a short period of time.
214.Artillery Combat Command and Control System (ACCCS)
to automate field artillery in the areas of trajectory computation and communication with secrecy.
215.Automatic electronic switch (AES)
to provide automatic trunk switching facilities for voice, teleprinter, and computer data. It is a stored program trunck exchange used as node switch in an Area Grid Tactical Communication Network which provides automatic, fast, secure and reliable communication.
216.Time Division Multiplex Exchange (TIDEX)
an all digital exchange serves as a mobile automatic telephone exchange, specially designed to work over Army Radio Engineered Network (AREN). It provides automatic switching for subscriber, grid Trunks and universal junction.
217.Data Concentrator (DC)
to enhance data communication capability of AREN grid, to provide AREN-ASCON integration for data calls, to provide data communication facility in isolation of AREN-ASCON networks.