Titus Alpha BAC-8001/BAC-8201 Cooling Only - Manual (Page 14)

BAC-8001 and BAC-8201 VAV Controllers Installing the controllers
Connecting to an MS/TP network
14
Note
The MS/TP terminals are labeled -A, +B and S. The S terminal is provided as a
connecting point for the shield. The terminal is not connected to the ground of
the controller. When connecting to controllers from other manufacturers, verify
the shield connection is not connected to ground.
Illustration 2-6 MS/TP network wiring
Redundant network
wiring for increased
reliability
Ground shield only at
one end of the segment.