WESDAC D20ME processor

Description

GE Grid Solutions is pleased to announce the following additions to the D20/D200 productfamily:D20ME II Main ProcessorThe D20ME II, the fifth generation of D20/D200 processors, builds on the increased memory,performance and communication port speed introduced with the D20ME. Where the D20MEsupports up to eight RS-232 serial ports (one of which is reserved for the maintenance port), theD20ME II supports:• Seven serial ports, each of which can be configured as either RS-485 or RS-232, and• One RS-232 maintenance port.Each D20ME II RS-485 port can communicate with up to 32 devices and operate over distances upto 4000 feet, without the use of repeaters (see note below). The D20ME II is backwards compatiblewith VME and non-VME versions of the D20 chassis, and with the D200 chassis. For moreinformation, see section 2.2, Main Processor.Figure 1 D20ME II Main ProcessorNote: The RS-485 port on the D20ME II provides no isolation and offers limited built-intransient suppression. If you are using the D20ME II in an environment where longer cable runswith larger transients are expected, installation of an external transient suppression device isrecommended to protect the RTU. In addition, GE recommends the installation of an externaltransient suppression device when the RS-485 communication cable must be run to deviceslocated outside of the RTU cabinet containing the D20ME II. Contact Customer Service foradditional information

WESDAC D20ME