Olide autodoor

Question for swing door opener sd3108

1. Does this model have a power switch on it?
2.  Can we use two operators to work together like one master and the other slave?
3. I like this model can be debugged by the hand programmer.
4. Does this model have a special battery backup?
5. Does the battery function is only to maintain the operator working when power goes off or its also required to maintain programming from being erased?

Answers for sd3018:

1.  Yes there is a power switch on the door opener.
2. Yes you can use two operators to work together. They can open and close at the same time.
3. Yes it can be programmed by the hand programmer. You also watched the video on Youtube and the there is instructions in the manual.
4. Yes it has a special backup battery.
5.  The battery is for keep operaoting when power off.