This is an update to alog 19451.

All tasks which have been scheduled for the maintenance periods of 7/7, 7/14 and 7/21 have been completed. Furthermore, all pending SUS/SEI ECR model changes have been implemented. However, the update to the new faster end station SUS computers has been proven somewhat unstable.

Completed tasks:

• Reboot servers/work stations
• Complete SEI model changes for adding test points (BSCs)
• Switch main modulation to new RF source
• Install fast end station SUS computers
• Add additional ADC board for PI damping
• Updated SUS model to include new common part w/  DARM ctrl for roll/bounce damping
• Change master GPS clock to external Trimble unit (requires antenna)
• Change EX timing FO (to fix VCO reporting error)
• Install initial model for PI processing
• Updated remote ESD monitoring/restart hardware
• Remaining ECRs for SUS/SEI model changes
• Added damping to the PSL periscope
• Increased ISS bandwidth