30 model 2000 DeviceNet Module Manual (DN611/DN611A)Chapter 3 Preparations for Operation (Hardware)33.4 Connection to the NetworkThis section describes how to connect the DeviceNet cables to the DN611.Caution1. Do not connect the DeviceNet cables to, or disconnect them from, network connectors whilethe network is in operation.The wrong connection or a network shortcircuit, for example, may disable communicationwith other nodes.2. Do not connect a network connector to, or disconnect it from, a device connector on the frontpanel of the DN611 while the S controller power is on.Failure to observe this can cause DN611 trouble or malfunction.3. Network connectors cannot be connected to, or disconnected from, device connectors in thewrong direction for reasons of their structure. Do not try to forcibly push them in.Otherwise, the network connectors and device connectors will be damaged.4. Install the cables, exercise care not to pulling them too tight or bending them.Do not place heavy objects on the cables. This is important to prevent the cables frombreaking.Caution1. Ask a qualified service agent for DeviceNet cabling because it requires safety and anti-noisemeasures.For the specifications of the installation procedures, refer to DeviceNet Volume I.Usage Recommendations1. Be careful not to connect the DeviceNet cables to the network connector in the wrong way. Itmay cause failure in communication with other nodes due to a network shortcircuit, etc.