Target plate control

Interlock Signal from Interferometer

Subsystem

Name

Model

Interface

Location

Quantity

Priority

Vac

Gate Valve

7

Mid

VIS

Suspension Watchdog

Analog Voltage, Relay Switches

Every suspension

11

High

Cryo

Temp. Monitor

RS-232C

Every Cryostat

8

Low

Laser

LD Current Monitor

Analog Voltage

4

High

IOO-AOS

Shutter

Dark Port

1

Mid

VIS-AOS

Earthquake alert(?) by Optical Lever

Every SASed Mirror

14

Mid

VIS-AOS

Range Over alert in Optical Lever on Obs. mode

Every SASed Mirror

14

Mid

VAC-AOS

Automatic Target Control Signal in Arm Tubes

Every target

greater than 8?

Mid

Interlock Signal from Facsility