Specifications
© 2010 Cypress Solutions Complete Manual: CTM-15X Firmware 1.3.0
Open CTM (Revision D)
16
Installing Your Modem
OUT1
OUT3
OUT GND
IN1
IN3
IN5
1
3
5
7
9
11
2
4
6
8
10
12
OUT2
OUT4
GND
IN2
IN4
IN6
3.6.1 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 16AWG. Note that the OUT GND connection is
referenced to the modem’s supply ground.
3.6.2 Input Connection
The 6 inputs may be configured in the modem for monitoring a digital DC voltage state or an analog DC
voltage.
For digital state monitoring the minimum input voltage is 0 volts while the maximum is 36 volts.
The threshold detection voltage is 2.5 volts with 1 volt of hysteresis. Note that the IN GND connection is
referenced to the modem’s supply ground.