© 2009 Cypress Solutions
Complete Manual: CTM-15X Firmware 1.2.0
(Revision 1.0)
16
1BInstalling 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
2.7.1
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 gau
ge for use with the connector is 16AWG. Note that the OUT GND connection is
referenced to the modem’s supply ground.
2.7.2
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.