Wire Types The BACnet Network • 37
12 The BACnet Network
The case controller operates as a stand alone controller, but also can be connected to a supervisory controller as well for remote access,
setpoint configuration and alarming. The case controller comes equipped with BACnet MS/TP and BACnet over IP communications.
For communication with the E2E controller the case controller uses an RS485 network and BACnet MS/TP.
12.1. Wire Types
Emerson specs General Cable 92454A (Emerson P/N 135-0600) shielded twisted pair cables for use as BACnet MS/TP wiring.
12.2. Daisy Chain Wiring
The BACnet MS/TP connection should be wired in a daisy chain topology, no star or T configurations are allowed. Connect the BACnet
network cable to the three terminal connector on the E2E COM port you wish to assign as BACnet MS/TP. Reverse the polarity of +/-
on the RS485 cable between the E2E and the iPro Case Controller.
Figure 12-1 - BACnet MS/TP Wiring
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