TOFp System Procedure:
pVPD Low Voltage Systems Power On or Off


   Description:
This is the procedure to turn on or off the Low Voltage provided to the FEE in the pVPDs. This is from a single BK Precision Model 1780 Dual Power Supply, which drives both pVPD's (1 FEE boards each, one pVPD on each side of STAR).
   Related Documentation:
  1. TOFp Glossary
  2. NPS Tutorial
  3. Module Full List
   Requirements:
  1. Notification and Approval of TOFp Group.
  2. Access to STAR Subnet.
  3. Password Information (posted at TOF Station in STAR Control Room).
   Procedure:
  1. Open the NPS Tutorial in a browser window for reference.
  2. From any terminal window, make a telnet connection to tofpnps.star.bnl.gov  (130.199.88.47). The password is posted at the TOF Station in the Control Room.
  3. You are now logged into the Network Power Switch, and can turn specific plugs on or off to turn specific Low Voltage lines on or off.
  4. Enter
         /S
    to display NPS Plug names and status.
  5. Locate in this listing the names "pVPD_LV", "TOFp_LV+5", "TOFp_LV-5". Identify the plug numbers (respectively 6, 7, and 8)

    6. pVPD LV ON

  6. Enter
         /on 6,y
    to turn on NPS Plug 6, which powers up the pVPD LV.
  7. Enter /S to check action completed, then /x to exit the communication w/ the NPS unit.
  8. Note the action in the Shift Log Book.

    9. pVPD LV OFF

  9. Enter
         /off 6,y
    to turn off NPS Plug 6, which powers down the pVPD LV.
  10. Enter /S to check action completed, then /x to exit the communication w/ the NPS unit.
  11. Note the action in the Shift Log Book.
   Testing:
N/A
   Completion:
  1. Contact TOFp Control to inform that procedure is complete, and with any end-of-procedure comments that are necessary.
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