Get a 3 pin DMX 110 ohm terminator. The 120 ohm would work but I would try to find a 110 ohm. Do not use any XLR cable on Dutch and Dutch they are very finicky make sure they are 110 ohm.
https://tmsomaha.com/product/accu-cable-dmx-terminator/
https://tmsomaha.com/product/accu-cable-dmx-terminator/