1. Author Wayne M. Koski EVLA Monitor & Control Hardware PDR March 13, 2002 1 EVLA Monitor and Control Monitor & Control Transition

2. Author Wayne M. Koski EVLA Monitor & Control Hardware PDR March 13, 2002 2 Antennas Antennas – Front Ends  Not all Front Ends Will Be EVLA  EVLA Interface to F14’s Required

3. Author Wayne M. Koski EVLA Monitor & Control Hardware PDR March 13, 2002 3 Antennas Antennas – Wye Monitor System  Interface Re-Designed for EVLA  MIB to MIB Communications  Consolidate Functions to Devices

4. Author Wayne M. Koski EVLA Monitor & Control Hardware PDR March 13, 2002 4 Control Building Control Building – Antenna Interface  New Modules Connect to EVLA M&C  Includes Temporary Modules  SLC Operates VLA Antennas  Operates EVLA at VLA Baseband  SLC Operated By Modcomps or EVLA Machine

5. Author Wayne M. Koski EVLA Monitor & Control Hardware PDR March 13, 2002 5 Control Building Control Building – Master Rack  SLC Controls VLA Master Rack  EVLA Master Rack Connected to EVLA M&C  Weather Station  Interfaces Re-Designed for EVLA  Modernized Weather Instrumentation  Fiber Run to Weather Station

6. Author Wayne M. Koski EVLA Monitor & Control Hardware PDR March 13, 2002 6 Control Building Control Building – Wye Monitor System  HVACs, UPS’s, and Generators  Interfaces Re-Designed for EVLA  Fiber Run to Generator Building  Modcomps Software Watchdogs  EVLA Requirements?

7. Author Wayne M. Koski EVLA Monitor & Control Hardware PDR March 13, 2002 7 Control Building Control Building – Other  Atmospheric Phase Interferometer (API)  VLBI/VLBA Racks  HTRP or Pulsar Equipment Racks  Pie Town Link  IAT Clock