Appendix - Installation of Remote Termination Panels (RTPs) - Analog Input/Digital Input/Digital Output/Analog 
Output 
224   HC900 Process Controller Installation and User Guide  Revision 19 
    06/14 
 
16 Point AC Digital Input 
Step  Action 
1  ATTENTION: RTP and cables are intended for permanent installation within their own enclosure. 
ATTENTION: The RTP combines the two groups of 8 inputs into one group of 16. 
Mount RTP cable assembly to HC900 Controller (Figure 92). 
•  Remove appropriate key tabs from terminal board to allow mating with the module. See page 75. 
•  Connect desired cable to 16 point AC DI module at controller. Choose from: 
900RTC-H010  Remote Terminal High Voltage Cable assembly, 1.0 meters long 
900RTC-H025  Remote Terminal High Voltage Cable assembly, 2.5 meters long  
900RTC-H050  Remote Terminal High Voltage Cable assembly, 5.0 meters long 
•  Install 16 point AC DI module label into module connector cover. 
•  Connect shield drain wire to the grounding bars at the base of the HC900 rack.  All field-wiring 
shields must be grounded as described in the shield grounding section (page 70).  
2  Mount RTP to DIN rail. 
•  Latch to rail. See page 244. 
•  Connect cable to RTP 
3  Set/verify jumper positions as shown. 
    
 
Module Removal / Insertion Under Power (RIUP) is supported by turning off Switch SW1 to allow removal of 
the module from the rack without causing an arc.  See page 73. 
ATTENTION: SW1 only disconnects L1, not both sides of the AC powerline. 
See page 230 for RTP internal schematic.