VOLKTEK

Tunnels

アプリケーションの概要考慮事項 Volktekのメリットアプリケーションダイアグラム

アプリケーションの概要

Safety and security in tunnels is critical as accidents can quickly escalate into severe situations with passengers being trapped. As a result, tunnels need to be equipped with ventillation systems, power supplies, lighting, fire protection and surveillance systems. For reliable transmission of all these systems, Industrial Ethernet solutions are required to provide robust performance in extreme environmental conditions.

考慮事項

Ruggedized metal housing with IP30 certification for mechanical stress, humidity, dirt, dust, shock and vibration with temperature range of -40°C~75°C.
Industrial protocols capable of supporting smart automatic devices such as lighting control, fire alarms, ventillation fans and traffic control systems which can be centrally controlled from a remote location.
Intelligent networking features such as Dying Gasp and Hardware Monitoring which can notify the administrator of any unwanted hardware or power system failures.
Industrial grade switches provide protection against ESD and power-line transients.

Volktekのメリット

	Feature		Benefit
Reliability	Redundant Power	Remains On During Power Failure	1) Built-in surge protection, dual power sources, and battery back-up 2) Ensure stable device operations for 24/7 network reliability.
Availability	Link Redundancy	Fast Network Recovery	1) Rapidly react to physical link failure and recover immediately 2) Provide an alternate pathy link to support continuous transmission.
Performance	Quality of Service (QoS)	Define the Critical Networks	Networks typically operate on a best-effort delivery basis, which means that all traffic transmitting from ports has equal priority and chance of being delivered in a timely manner. When congestion occurs, the same traffic has an equal chance of being dropped. When configuring the QoS feature, specific networks can be prioritized, optimizing the network performance and bandwidth utilization.
Security	802.1x RADIUS / TACACS+	Secure the Network by Authenticating the Users	Allows the network administrator to specify a whitelist of allowed MAC addresses, allowing only those devices to connect to the network. It also limits the number of devices connected to a single downlink port known as Dynamic Assignment.
Security	e-mail Alarm	Triggered Events Alert Via Email	1) Notify the administrator if real-time problems occur such as firmware or configuration changes, device status, link connectivity status, etc. 2) Help administrators to quickly identify, isolate and resolve network issues.
Management	Link Layer Discovery Protocol (LLDP)	Access Device and Network Information	Managed switches provide management of SNMP traps or alert messages sent from a remote SNMP-enabled device to a center SNMP server.
Management	PoE ON / OFF + PD Alive Check	Intelligent PoE+ for Powered Devices	PoE switches can enable or disable the power supply to the powered devices. The powered ports can send keep-alive checking packets to the devices to increase system reliability.

アプリケーションダイアグラム