| Focus | ok | Type | Driver | Comments |
| ISIS Red | * | Prontor | ISIS Shutter Module | Prontor modified to run pneumatically using 24v solenoid & using hettich status switches (5v). Module also provides MIMIC status |
| ISIS Blue | * | Prontor | ISIS Shutter Module | Prontor modified to run pneumatically using 24v solenoid & using hettich status switches (5v). Module also provides MIMIC status |
| Aux. Port | * | Compur | Direct | Compur has built in status switches |
| Taurus | ? | ? | . | |
| LDSS | * | Prontor | 4MS shutter card | 4MS deals with interlocks etc |
| WYFFOS | Prontor | ? | Microswitches provide feedback | |
| UES | . | ? | . | |
| PFIP | Prontor | ? | Microswitches provide feedback | |
| Sauron | * | French | Direct | Prontor equivalent with dummmy relay feedback. |
| IDS235/500/FOS | * | In-house | MMS | Shutter is part of instrument but emulates a Prontor |
| WFC | * | n/a | n/a | Shutter is controlled by instrument |
| Musicos | as IDS | ? | . | |
| JAG | * | Prontor | Direct | Requires 5V for status switches (currently from CCDC temp. cable) |
| SHACK-HARTMANN | ? | Direct | . | |
| QE Rig | * | Prontor | Direct | With dummy relay feedback. |
Last updated : 5th febuary 1999
awr@ing.iac.es