Vivotek IO.XEC, User Manual

Page: 5 / 22

5
1.3 Identifying the components of IO.XEC
Terminal block A Terminal block B Terminal block C
Q1
Output 1
(relay)
V+ Power supply (12V) SCL Digital T+RH clock
Q1 GND Power supply (0V) 3V3 Digital T+RH power
Q2
Output 1
(relay)
C1 Common of inputs 1-2 GND Digital T+RH GND
Q2 C2 Common of inputs 3-8 SDA Digital T+RH data
Q3
Output 1
(relay)
CO Common of outputs 5-8
Q3 AT Analog temp. sensor
Q4
Output 1
(relay)
AI Analog input
Q4 AO Analog output
Terminal block A
Terminal block B
Terminal block C
Expansion port
Ethernet port
RS232 port
USB connector
Terminal block E
Terminal block D
Status LED