Project Introduction A new residential community was being developed in Taipei County, Taiwan by a well-known construction company. In this community, intelligent buildings would be connected with fiber Ethernet. Residents would have access to high tech services, such as high speed Internet connections, advanced security systems, intelligent elevator control, and on-demand TV. In addition, each building would be monitored in real-time from a central control room, and individual fire alarms could be triggered as needed.
System Requirements Every fire alarm needed to be connected to the control room, which would be staffed by a single security guard. However, there was insufficient space in the existing pipes to install I/O wiring from the alarms to the control room. Another method was required to transmit the I/O signals. Since fiber Ethernet was already installed, the client wanted a solution that satisfied the following requirements:
Transmits I/O signals over Ethernet, from each building to the control room
No extra controller needed
Minimal additional training and wiring effort
System Description
Moxa offers a variety of I/O solutions for almost any industrial requirement. The EDS-405 switch was used for the network infrastructure, and the ioMirror E3210 was used to transmit I/O signals. Fire alarm sensors were connected to one ioMirror unit, which exchanged signals over Ethernet with another ioMirror unit that was connected to the control center. By utilizing the existing fiber network, I/O signals could be transferred without additional wiring effort. An advantage with the ioMirror E3210 is that channel-to-channel mapping is also supported, so one unit could receive I/O signals from different channels over Ethernet.
Project Implementation
Why Moxa?
Conclusion
ioMirror E3210
Peer-to-peer Ethernet I/O server with 8 digital inputs, 8 digital outputs
Using an existing Ethernet infrastructure to transmit I/O signals is a very smart solution. Physical obstacles can raise the cost of wiring or delay your project. With the ioMirror E3210, you have an easy way to transmit I/O signals using wired or wireless IP networks.
