Optical Support System (OSS)
1. Top End Optical Assembly (TEOA)
2. M1 Assembly
3. Feed Optics
4. Polarization Analysis and Calibration (PAC)
Mount Base
1. Telescope Mount Assembly
Coudé Rotator
1. Coudé Drive Controller
2. Coudé Environmental Systems
Instrumentation
1. Wave Front Controller
2. Visible Broadband Imager
3. Visible Spectropolarimeter
4. Diffraction Limited Near-IR Spectropolarimeter
5. Cryogenic Near-IR Spectropolarimeter
6. Visible Tunable Filter
7. Camera System
Facility Thermal System
1. Facility Thermal Control System
Enclosure Motion
1. Enclosure Motion Control
Facilities
1. Facility Equipment

qty	catalog number	description	status
2	1756-L63S	GuardLogix Controller 8 MB	discontinued
2	1756-L62S	GuardLogix Controller 4 MB	discontinued
4	1756-LSP	GuardLogix Safety Partner	discontinued
1	1756-L72S	GuardLogix 5572S Automation Controller 4MB/2MB	active
1	1756-L7SP	GuardLogix 5572S Safety Partner processor	active
1	1756-L83ES	GuardLogix 5580, Safety Controller 10MB	active
1	1756-L8SP	GuardLogix 5580, Safety Partner Controller	active

Independent Safety Network

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