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Product Description

The Model 236, G.703 to RS-232/V.35 Interface Converter, allows a synchronous device, RS-232 or V.35, to communicate over a G.703 network.

The Model 236 accepts data and clock signals and formats them for transmission onto a G.703 network. Data will only be encoded if the enable (DCD or RTS depending on the mode) coming from the V.35/RS-232 device is asserted. Data and clock signals are provided to the Model 236 from the synchronous interface. The clock is used to synchronize the converter, while the data is encoded into an AMI format for transmission to a G.703 network. Data received from the G.703 is checked to make sure that it is in the proper format as required by the G.703 specification. If the data is in compliance then a Data Valid signal (RTS or DCD depending on the mode) is asserted and the received data is decoded into data and a clock to be presented to the V.35/RS-232 device that it is connected to the Model 236. A provision is included to allow the user to switch select the source of the clock to the synchronous device. The clock source can be a clock derived from the received data or the transmit clock of the synchronous device.

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