Trane Tracer MP501 Installation, Operation And Maintenance Manual page 17

Figure 6.
LonTalk 
communication
link
Figure 7.
CNT-SVX08F-EN
Input/output terminal wiring for SCC applications with the MP501 controlling
staged outputs
Stage 1
H
24 Vac
N
GND 24V 24V
AC POWER
COMM5
SERVICE
A B A B
LED PIN
In
Out
Occupancy or
generic input
Input/output terminal wiring for SCC applications with the MP501 controlling an
analog (0–10 Vdc) actuator
Stage 2
Not used
1 24V 2 24V 3 OUT GND
BINARY OUTPUTS AO
BI AI ZONE SENSOR
BI 1 GND +20 AI1 SET GND ZN
Not used
Optional
LonTalk
connection
Applications for SCC Mode
Fan on/off
STATUS
LED
COMM5
LED
Trane zone
1
.
temperature
2
sensor
3
17