iOptron CEM120 Assembly Instructions

This instruction illustrated how to assemble the DIN‐422
plug. You'll need to decide the wire counts (up to 4) and
wire gauge (depends on total current the device will
draw). For example, if the maximum current drawn per
pair is 5A, you probably need AWG20 wires.
Soldering work (or other means) is needed to attach the
wires. There are 4 conductors inside this mini DIN
connector. Make sure you mark/remember which wire
each of them is soldered to.
iOptron is not responsible for any accident or damaged
part during assemble.
A non‐assembled DIN‐422 plug has 7 small parts, as
shown below.
1. Select a correct wire/wire bundle. Cut to a proper
length. Strip the plastic coating outside the wire.
Solder them to the short pins on the plug. Please
note that 4 pins on the plug are NOT placed
uniformly. (see 2)
2. Insert the plug to the chasse with two slots aligned
to the spring reeds and two pins with wider
separation on top of the chasse with alignment
notch. Push the plug all the way in.
DIN‐422 Plug Assembly (for CEM120 AUX Port)
3. Bend the metal wings to lock the cable.
4. Insert the black spring stop ring from the wire end
and align two studs along to the spring reeds.
Slot
Spring reed
Align. notch
Pins w/wider
separation