cypress solutions CTM-ONE - General Purpose I;O (GPIO)

© 2021 Cypress Solutions Manual: CTM-ONE (Revision 1.0)
18
Installing the CTM-ONE
GPIO Block Pin
Signal
Name
1
INPUT1
Single Ended Input 1
2
INPUT2
Single Ended Input 2
3
INPUT3
Single Ended Input 3
4
INPUT4
Single Ended Input 4
5
VCC
Power (Power supply output – fused)
6
RS485
Negative
7
RS232
RxD
8
DOUT1
Output 1
9
DOUT2
Output 2
10
DOUT3
Output 3
11
DOUT4
Output 4
12
GND
Common Ground for Power
13
RS485
Positive
14
RS232
TxD
5.8.1 GPIO Output Connection
The 4 outputs are configured as “open drain” which means that they can be directly connected to energize
external relays, lamps or other DC devices.
Maximum supply voltage is 36 volts, with a maximum load current of 500mA.
Recommended wire gauge for use with the connector is 20-24 AWG. Note that the OUT GND connection is
connected to the CTM-ONE’s supply ground.