Buying Guide・2016-04-10

Basic Networking Knowledge and Q&A on BXB Conference Product Network Connection

Industry Insights Download PDF [Written by / Vice President's Office]

With the increasing popularity of internet applications and the rise of IoT technology, more and more extra-low voltage (ELV) engineering projects require not only a certain level of understanding of products and ELV-related knowledge, but network technology has also become indispensable for many project sites. Based on our own experience and the situations encountered by many clients in public address and conference venues, we will explore potential scenarios one by one by extending relevant knowledge from common questions and propose corresponding solutions.

Q: The school wants to connect the graphical control client of the BXB broadcasting system to the server, but why can't it connect?

A: Simply put, there could be several situations:

1. All connected network devices in this school are controlled by the network administrator (router). Therefore, any unrecognized machine attempting to connect and communicate through it will be rejected, because as the administrator, it does not recognize the machine.

2. It is possible that the client-side network and the server-side network are on different subnets.

3. Even if they recognize each other, these machines must act according to the router's rules; otherwise, they will be rejected. Every program or service uses a specific port. If the service for this port is turned off or blocked by the router's firewall, the service naturally cannot start or connect. Currently, most schools where customers install PA systems are elementary, middle, and high schools, where the network environments are relatively simple. For universities, there will definitely be more than one IT server room. If you have the chance to look inside, you will see a ton of network equipment, from routers to switches, occupying at least one to two racks, with a bunch of servers next to them. It is truly surprising to see that this room is packed with machines. Focusing on routers and switches, every occupied network port on these routers or switches connects to all network-enabled devices in the school. This could include routers and switches in different buildings, or computers in classrooms and computer labs, all managed by the controlling router. Below is a simple simulation diagram of campus equipment drawn using Cisco Packet Tracer.