Huper huberDVR 2400 User Manual page 137

2. Installing the Cable
You need to install a cable to connect I/O ports to I/O devices. You can purchase a cable
from any PC accessory store or use the cable that comes with the video capture card. Please
note that some models of video capture cards do not include cables. You can purchase the
cable from the dealer where you purchased the product.
3. Connecting to I/O Devices
Each I/O ports can connect to an input device or an output device. If the input/output
voltage from/to the I/O devices does not match the specifications of I/O ports, the video
capture card or output devices may be damaged due to overrunning of the voltage limit.
An extra circuit for increasing/decreasing the voltage from the input device or to the I/O
port can solve the problem. Please note that I/O ports can only accept DC (Direct
Current).
4. Setting I/O Devices
I/O devices and I/O ports should have their corresponding positive pole pins connected
and corresponding negative pole pins connected. If the first I/O port is connected to an
input device, please select the first option on the "Device/Input" page of the "Preference"
dialog box then specify the device type (either NC or NO). (Please refer to Figure 4-1.) If
the first I/O port is connected to an output device, please select the first option on the
"Device/Output" page of the "Preference" dialog box then specify the device type (either
NC or NO). (Please refer to Figure 4-2.) If you installed other I/O devices, follow the rule
above for the "Preference/Device." page.
Figure 4-1 Enable the Input Device
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