User Tools

Site Tools


telescope_and_observatory_control

Differences

This shows you the differences between two versions of the page.

Link to this comparison view

Both sides previous revisionPrevious revision
telescope_and_observatory_control [2025/05/01 19:12] holtztelescope_and_observatory_control [2025/05/21 15:20] (current) holtz
Line 33: Line 33:
 4-pin connector J808A : Watchdog (dome box needs +24V or else shutter will close on Automatic) 4-pin connector J808A : Watchdog (dome box needs +24V or else shutter will close on Automatic)
 | Dome box |          Peltec timer | | | | | Dome box |          Peltec timer | | | |
-| 1        | gnd        18     15 |   gnd | 15 connects to 18 for ~4 minutes after power is dropped between A1 and A2 | +| 1        | gnd, white     |    18     15 |   gnd | 15 connects to 18 for ~4 minutes after power is dropped between A1 and A2 | 
-| 3        | +24V DC |    28     25 |  +24V | same for 25 and 18 |+| 3        | +24V DC, purple |    28     25 |  +24V | same for 25 and 18 |
 |          |            A1     relay 5 | gnd | trigger for relay, must cycle every 3 minutes to keep dome open (but don't leave energized permanently! | |          |            A1     relay 5 | gnd | trigger for relay, must cycle every 3 minutes to keep dome open (but don't leave energized permanently! |
 |          |            A2    +24V | | same | |          |            A2    +24V | | same |
Line 42: Line 42:
 connector J805A : Supplies power and ground to box, and relay for dome power (org yel blu wires) connector J805A : Supplies power and ground to box, and relay for dome power (org yel blu wires)
 |J805A pin | 9 pin connector | function | comment | |J805A pin | 9 pin connector | function | comment |
-| 4 | 4 | +24V | voltage always supplied | +| 4 | 4 | +24V red | voltage always supplied | 
-| 3 | 1 | gnd  | ground always supplied+| 3 | 1 | gnd white | ground always supplied
 | 2 | 2 |relay 1 grey | trigger connects pin to ground | | 2 | 2 |relay 1 grey | trigger connects pin to ground |
  
 connector J806A : Supplies (redundant?) power and ground to box, and relay for dome direction (brn red grn wires) connector J806A : Supplies (redundant?) power and ground to box, and relay for dome direction (brn red grn wires)
 |J806A pin | 9 pin connector| function | comment | |J806A pin | 9 pin connector| function | comment |
-| 4 | 9 |+24 | voltage always supplied | +| 4 | 9 |+24 red | voltage always supplied | 
-| 3 | 8 | gnd | ground always supplied+| 3 | 8 | gnd white | ground always supplied
 | 2 | 7 | relay 3 brown | trigger connects pin to ground | | 2 | 7 | relay 3 brown | trigger connects pin to ground |
  
Line 55: Line 55:
 | J807A pin| function | comment | | J807A pin| function | comment |
 | 2 | relay 2 purple | trigger connects pin to ground | | 2 | relay 2 purple | trigger connects pin to ground |
-| 3 | gnd| ground always supplied |+| 3 | gnd black| ground always supplied |
 | 4 | relay 4 orange | trigger connects pin to ground | | 4 | relay 4 orange | trigger connects pin to ground |
-| 5 | gnd | ground always supplied |+| 5 | gnd black | ground always supplied |
  
  
telescope_and_observatory_control.1746126745.txt.gz · Last modified: 2025/05/01 19:12 by holtz