Rockwell Automation T7903 ICS Regent+Plus I/O Termination Assembly (ITA) - Manual (Page 34)

I/O Termination Assembly
3 4
Industrial Control Services
A p p e n d i x E - Single Ended, External
Current Limiting
YTMR790114 (Right Hand Varelco Connector)
YTMR790214 (Left Hand Varelco Connector)
YTMR790314 (Screw Terminal Connector)
The Single Ended, External Current Limiting ITA provides the facility for
fusing each path of the field loop when using single ended modules.
The ITA is capable of handling 16 single ended signals. Each field
circuit has a maximum current rating of 2A.
Single ended I/O modules have 16 field circuits and one ITA will be
required for each module.
The connector idents are shown on the legend on the ITA.
The block diagram below shows typical connection of the module to
the field device.
Figure E-1. Varelco Left Hand Single Ended,
External Current Limiting, Block Diagram.
The modules which use the Single Ended, External Current
Limiting ITA are listed in Table 1 of the main document.