User's Manual

Wall Installation
24 R900 Wall and Pit MIU Installation and Maintenance Guide
Installing the R900 Wall MIU
Removing the Main Housing
Complete the following steps to install the wall MIU.
1 Remove the main housing from the mounting adapter.
(The Hi-Lo fastener for securing the main MIU housing to the
adapter plate is shipped separately in box).
Figure 31 Wall MIU Main Housing
Table 6 Cable Lengths and Manufacturers
Encoder Register Maximum Cable Length
Neptune ARB III, IV, and V 300 feet (91 meters)
Neptune ProRead (ARB VI) /
E-Coder (ARB VII)
500 feet (152 meters)
Invensys ECRII and ECRIII
200 feet (61 meters)
Networked Neptune ProRead (ARB VI) /
E-Coder (ARB VII)
250 feet (76 metres)
* Meets manufacturer’s published specification for wire length between encoder and remote receptacle.
• ARB, ProRead (ARB VI), and E-Coder (ARB VII) are trademarks of Neptune Technology
Group Inc.
• ECRII is trademark of Invensys.
• ECRIII must be programmed with the proper format.
set screw