D20 EME 10BASE-T D20 Substation Controller

D20ME II CPU Board
The D20ME II is the sixth generation main processor for the D20 platform. This 32-bit main processor module handles data
collection and delivery to host computers, runs local automation algorithms and maintains I/O and device data in the system database.
CPU and Memory
• 32-bit microprocessor architecture
• 2 MB flash application memory
• 1.5 MB SRAM
• 512 KB NVRAM
• 1 MB BootROM
• TCXO clock, 1.0 ms resolution, accurate to ±2 ppm Communications
• 7 RS-232/485 serial ports
• RS-232 maintenance port
• 2 D.20 Link HDLC ports for communication to D20 I/O modules
• Wireless Ethernet Ready with PPP/TCP/IP Self-diagnostics
• Program memory check sums
• RAM test
• Configuration verification
• Interrupt controller verification
• Serial port test
• Watchdog and power monitor
• I/O Module health checks
• Error logger

D20-EME-10BASE-T

The D20 main chassis has three modem slots with modems specifically designed to fit them. WESDAC D20 Modem:
• 1200 Baud, 202 modem Telenetics Modems:
• 2400 baud, 2-wire, dial-up modem
• Telenetics 14400 baud, 2-wire, dial-up modem
• Telenetics 14400 baud, 4-wire, leased line modem