
Chapter 3
Document Version V3.1.0 (2020-08-18) 21
Step 2
Arrange space required for the installation according to installation size.
Figure 3-5 Motherboard installation diagram (unit: mm)
3.3.2 Installation of daughterboards
The single board of economical QD1 has 16 (input) * 16 (output)
channels. One QD1 motherboard supports installation of up to 7
daughterboards. Upon expansion, it supports 32, 48, 64... 112 IO
channels, which can flexibly meet users’ requirements.
Step 1
Install screws and bolts in the mounting holes at the four corners of
daughterboard;
Step 2
Tighten nuts to fix the daughterboard to the motherboard, as shown in Figure
3-6:
Figure 3-6 Daughterboard installation diagram
Step 3
To install more daughterboards, you need to install a new daughterboard onto
the previous fixed daughterboard. QD1 supports extended installation of up
to 6 daughterboards, as shown in Figure 3-7:
Screw
Motherboard Copper post