10 DTE / DCE Configuration
The MPA-200 can be purchased in either Data Terminal Equipment (DTE) or Data Communications Equipment (DCE) configuration. The two configurations share some important features, but have significant differences which need to be mentioned.
Both the DTE and DCE configurations allow the user to enable and disable the driver circuitry on the MPA-200 through the settings of jumper block J7. See the chapter JUMPER BLOCK CONFIGURATIONS on page 11 for further informa- tion on the configuration of this jumper block. They both also have the ability to receive data and receive clock (RCLK) on channel B of the SCC. This allows the user to transmit and receive on two different channels.
The differences between the MPA-200’s DTE configuration and its DCE configu- ration include signal definitions, control signals, clocking options and testing. The following sections describe each configuration individually and in detail.
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