Trane Tracer Summit - DB-25 Connector Pin Assignments

Chapter 6 Network Wiring
174 BMTW-SVN01F-EN
DB-25 Connector Pin Assignments
Figure 82 provides the DB-25 pin assignments for a BACnet device and a
Tracer Summit BCU.
Figure 82: DB-25 connector cable pin connections
EIA-232 card with 25-pin
male connector
Pin2=Transmit data (output)
Pin 3 = Receive data (input)
Pin 7 = Signal ground
Pin4=RTS
Pin 8 = DCD
Receive data pin assignment (input)
Transmit data pin assignment (output)
Signal ground pin assignment
Jumpered
BACnet device
Tracer Summit BCU