From my KDA50 user manual:
Hold the M7164 board with the LEDs & ribbon cable connectors upwards and the Qbus edge connectors down. The block of 10 dip switches sets the bus address.
The left-most switch is S1 (and corresponds to address bit 11) and the right-most is S10 (and corresponds to address bit 2).
To set the address to 172150, the switches should be (from left to right):
A11 A10 A9 A8 A7 A6 A5 A4 A3 A2 S1 S2 S3 S4 S5 S6 S7 S8 S9 S10 off on off off off on on off on off
From: Kenn Humborg