## Abstract
I replaced the AC power supply of the IOO Moku in front of the ALS1 rack with the DC one and installed a CMS injection box between Moku and CARM CMS.
## What I did
- I prepared the DC power supply (Kepco ATE 15-6M) and set it on the table in front of the ALS1 rack. I set the DC voltage to ~12 V between an "- OUT" port and an "+OUT port" of the supply (Fig.1). I connected the cable for the ground (blue one) to the "-OUT" port and the cable for the signal (red one) to the "+OUT" port. And then, I connected the other side of the cable to Moku. (Fig. 2)
- We need to consider where we put the power supply
- After that, I disconnected the cable from the EXC A port of CARM CMS. I connected the EXC A port to the output port of the CMS injection box (JGW-S2415858) with a 50 cm BNC cable. Then I connected the Moku OUT1 port to the input port of the box with ~1 m BNC cable. I put the box on the I&Q demodulator chassis (Fig. 3).