User Manual

General Installation Guidelines
CMIU Installation and Maintenance Guide 5
If connecting the MIU to a new ProRead encoder register, or if a three-
conductor cable is already connected to a ProRead encoder register,
ensure that the ProRead register is programmed for three-wire mode
using the ProRead programmer and its RF/MIU 6, 8, or 10ID TDI
format. This can be accomplished through the ProRead receptacle
before removing the receptacle.
Installation of a Register (Non Pre-Wired or Potted Only)
1 Before wiring the pit encoder register, make sure the cable is long
enough. When the installation is complete, the pit lid can be
removed easily without straining the cable.
2 Use only 22 AWG cable to make the connection from the encoder
register to the MIU.
3 Remove the terminal screw cover from the encoder register.
4 Strip off ¾ inch of jacket from the cable, leaving only the three
insulated wires.
5 Take precautions not to nick or cut the insulation on the three wires,
strip off ½ inch of insulation from each of the three wires.
Figure 2 Wiring a Neptune Encoder Register
When a ProRead encoder register is used, the non-AutoDetect ProRead
register must be programmed for three-wire mode.