OpenSprinkler Zone Expander provides an easy and inexpensive way to increase the number of stations for your OpenSprinkler. Each expander adds 16 zones.
NOTE: please choose the correct version:
- If you have OS 3.0 (with built-in WiFi), you must choose Expander 3.0 (AC or DC depending on your main controller version).
- If you have OS 2.x (with Ethernet jack), you must choose Expander 2.1 (AC or DC depending on your main controller version).
- If you have OpenSprinkler Pi (OSPi), you must choose Expander 2.1 AC (OSPi only has AC version).
Different expander versions come with different expansion cables, and cannot be plugged into each other: Expander 2.1 comes with a 2×4 wire cable and polarized connector; Expander 3.0 comes with a 2×5 ribbon cable and IDC connector.
Choose AC or DC depending on your main controller (DC controller is marked ‘DC’ on the front). For example, controller labeled ‘DC’ must use DC expander. Controller without such a label is AC-powered. You can also find out the power version when you reboot the controller.