Chroma 61603 - I;O Connectors (Option)

Installation
2-5
2. The inner digital circuit of AC source maybe not reset if turn off
power then turn on immediately. Waiting more than 3 seconds is
suggested to turn on power after turning off.
2.7 I/O Connectors (Option)
Figure 2-4 Option Board
Figure 2-5 Option Board (with USB and Ethernet)