ZShooter power control operations

Scope: supply/UPS status and control of instrument power. Circuits, outlets, and loads are in the power harness.

Power distribution

Area	Equipment	Details still needed
Server room	Managed UPS, with NUT planned for monitoring	Management connection, backed loads, shutdown thresholds
ZFront	120 VAC from facility UPS; AC distribution to ZImager and ZSpec; local DC supply	Switched outputs and load allocation
ZImager	Local DC distribution; local battery provision under review	Retained loads and need for local battery
ZSpec VIS	Local DC distribution and UPS provision	Retained loads and UPS arrangement
ZSpec NIR	Local DC distribution, presently supplied through VIS	Standalone power connection

Controls and status

The available controls depend on the selected supplies and distribution hardware.

Function	Inputs	Status and feedback
Read supply/UPS state	Supply or UPS	Input/output state, battery state where available, faults
Switch an output	Output and on/off	Output state and affected loads
Power-cycle a load	Load	Off/on progress and resulting equipment state
Shut down a computer	Host or group	Shutdown progress and outcome; see computer management

Interruption and recovery

An interruption plan needs the actual UPS coverage and the loads required to maintain cooling, vacuum support, and monitoring. Shutdown thresholds and restart behavior remain to be set for that hardware.

Module isolation must leave the retained modules and central glycol monitoring available. The isolation points are part of the power harness design.

Team notes: Facility UPS is the working direction for the RNAS feed. The remaining local battery/UPS entries need review in that context. NIR also needs a practical power arrangement for standalone AIT and maintenance. There is not enough information yet to write a switching sequence.