IGT-805AT

Flexible, Reliable and Industrial-grade Network Distance Extension Solution
PLANET IGT-805AT is an Industrial Gigabit Media Converter providing non-blocking wire-speed performance and great flexibility for Gigabit Ethernet extension in harsh industrial environment. It is equipped with one 10/100/1000BASE-T RJ45 copper and one 100/1000BASE-X SFP fiber optic interface delivered in an IP30 rugged strong case with redundant power system. The IGT-805AT is well suited for applications in deploying surveillance system, and securing control and wireless service in climatically demanding environments with wide temperature range from -40 to 75 degrees C. With 9K jumbo frame feature support, the IGT-805AT can handle extremely large amounts of data transmission in a secure topology linking to a backbone or high-power servers.
Fiber-Optic Link Capability Enables Extension of Network Deployment
The SFP slot of the IGT-805AT is compatible with 100BASE-FX and 1000BASE-SX / LX / WDM through SFP (Small Form Factor Pluggable) fiber-optic transceivers. The fiber optic uplink capability guarantees the throughput to all nodes hooked into the network and the Gigabit Ethernet distance can be extended from 550 meters (multi-mode fiber cable) to 10/20/30/40/50/60/70/120 kilometers (single-mode fiber cable), and also the Fast Ethernet distance can be extended from 2km (multi-mode fiber cable) to 20/40/60 kilometers (single-mode fiber cable). It is the ideal product for applications within the factory data centers and distributions.
Enhanced Smart Management Features
The IGT-805AT provides auto MDI/MDI-X on its TP port and built-in Link Fault Pass-through function (LFP). The LFP function includes Link Loss Carry Forward (LLCF) and Link Loss Return (LLR), both of which can immediately alarm administrators the problem of the link media and provide efficient solution to monitoring the net. LLCF means when a device connected to the converter and the TP line loses the link, the converter’s fiber port will disconnect the link of transmission. LLR means when a device connected to the converter and the fiber line loses the link, the converter’s fiber port will disconnect the link of transmission. Therefore, the IGT-805AT greatly supports the administrators to manage the network efficiently.
Environmentally Hardened Design
The IGT-805AT is equipped with the slim-type IP30 metal case for easy deployment in heavy Industrial demanding environments. With IP30 industrial case protection, the IGT-805AT provides a high level of immunity against electromagnetic interference and heavy electrical surges which are usually found on plant floors or in curbside traffic control cabinets. Being able to operate under the temperature range from -40 to 75 degrees C, the IGT-805AT can be placed in almost any difficult environment. The IGT-805AT also allows either DIN rail or wall mounting for efficient use of cabinet space.
Convenient and Reliable Power System
To enhance the operation reliability and flexibility, the IGT-805AT is equipped with two DC power input connectors for redundant power supply installation. It also possesses an integrated power supply source with wide-ranging voltages (12 to 48V DC or 24V AC) for worldwide high availability applications requiring dual or backup power inputs.

IGT-1205AT

Flexible, Reliable and Industrial-grade Network Distance Extension Solution
PLANET IGT-1205AT is an Industrial Gigabit Media Converter providing non-blocking wire-speed performance and great flexibility for Gigabit Ethernet extension in harsh industrial environment. It is equipped with one 10/100/1000Base-T RJ-45 copper and two 100/1000Base-X SFP fiber optic interfaces delivered in an IP30 rugged strong case with redundant power system. The IGT-1205AT is well suited for applications in deploying surveillance system, and securing control and wireless service in climatically demanding environments with wide temperature range from –40 to 75 degrees C.Fiber-Optic Link Capability Enables Extension of Network Deployment
The two SFP slots are compatible with 100Base-FX or 1000Base-SX / LX / WDM through SFP (Small Form Factor Pluggable) fiber-optic transceivers. The fiber optic uplink capability guarantees the throughput to all nodes hooked into the network and the Gigabit Ethernet distance can be extended from 550 meters (Multi-mode fiber cable) up to 10/20/30/40/50/70/120 kilometers (Single-mode fiber cable), and also the Fast Ethernet distance can be extended from 2km (Multi-mode fiber cable) up to 20/40/60 kilometers (Single-mode fiber cable). They are well suited for applications within the factory data centers and distributions.
Adjustable 3-Port Switch Mode or 2 Fiber Redundant Mode
Via the built-in DIP switch, the two SFP fiber interfaces of the IGT-1205AT can be configured as Ethernet switch mode or Fiber Redundant mode. With the Ethernet switch mode, it can operate in Store-and-Forward mechanism with high performance; with the 2-port Fiber redundant mode, it provides rapid fiber redundancy of link for highly critical Ethernet applications. The redundant mode supports auto-recovering function. If the destination port of a packet is link-down, it will forward the packet to the other port of the backup pair.
Environmentally Hardened Design
The IGT-1205AT is equipped with the slim-type IP30 metal case for easy deployment in heavy Industrial demanding environments. With IP30 industrial case protection, the IGT-1205AT provides a high level of immunity against electromagnetic interference and heavy electrical surges which are usually found on plant floors or in curb side traffic control cabinets. Being able to operate under the temperature range from -40 to 75 degrees C, the IGT-1205AT can be placed in almost any difficult environment. The IGT-1205AT also allows either DIN rail or wall mounting for efficient use of cabinet space.Convenient and Reliable Power System
To enhance the operation reliability and flexibility, the IGT-1205AT is equipped with two DC power input connectors for redundant power supply installation. It also possesses an integrated power supply source with wide-ranging voltages (12 to 48V DC or 24V AC) for worldwide high availability applications requiring dual or backup power inputs.

IGS-624HPT

Long Distance High Power PoE and Gigabit Data Extension Solution
The PLANET IGS-624HPT is an Industrial Gigabit 802.3at PoE+ Switch providing non-blocking wire-speed performance and great flexibility for Gigabit Ethernet extension in harsh industrial environment. It provides 4-port 10/100/1000Base-T copper with 802.3af/at PoE injector and 2 extra 100/1000Base-X SFP fiber optic interfaces delivered in an IP30 rugged strong case with redundant power system. The IGS-624HPT is well suited for applications in deploying surveillance system, and securing control and wireless service in climatically demanding environments with wide temperature range from -40 to 75 degrees C.High Power PoE for Security and Public Service Applications
To fulfill the demand of High Power PoE for network applications, the IGS-624HPT provides 4 10/100/1000Mbps ports featuring both IEEE 802.3af and IEEE 802.3at Power over Ethernet Plus (PoE+) that combine up to 30-watt of power output and data per port over one Cat.5E / 6 Ethernet cable. With totally 120-watt PoE output capability on the whole system, the IGS-624HPT is designed specifically to satisfy the growing demand of higher power consuming network PD (powered devices) such as PTZ (Pan, Tilt & Zoom) / Speed Dome network cameras, multi-channel (802.11a / b / g / n) outdoor wireless LAN access points and other PoE network devices by providing double PoE power, rather than the current conventional 802.3af PoE.
Intelligent LED Indicator for Real-time PoE Usage
The IGS-624HPT helps users to monitor current status of PoE power usage easily and efficiently by its advanced LED indication. Called “PoE Power Usage”, the front panel of the Industrial Gigabit PoE+ Switch has four orange LEDs indicating 30W, 60W, 90W and 120W of PoE power usage.
Convenient and Reliable Power System
To facilitate the 802.3at High Power PoE usage with the commonly used 48V DC power input in transportation and industrial-level applications, the IGS-624HPT adopts 48V DC to 52V DC power boost technology to solve power source issue which is not required for special power supplies to achieve the level of High Power PoE+ output. To enhance the operation reliability and flexibility, the IGS-624HPT is equipped with two DC power input connectors for redundant power supply installation.
High Power Budget for PoE Extension
With 30-watt PoE output capability, the IGS-624HPT can extend much longer distance by using PLANET PoE Extender for powering up the IEEE 802.3af PoE PD devices which can be installed over more than 100 meters away. By daisy-chaining multiple PLANET PoE Extenders, it offers the great flexibility of doubling, tripling or quadrupling the distance of PoE network.
Environmentally Hardened Design
The IGS-624HPT is equipped with the rugged IP30 metal case for easy deployment in heavy Industrial demanding environments. With IP30 industrial case protection, the IGS-624HPT provides a high level of immunity against electromagnetic interference and heavy electrical surges which are usually found on plant floors or in curb side traffic control cabinets. Being able to operate under the temperature range from -40 to 75 degrees C, the IGS-624HPT can be placed in almost any difficult environment. The IGS-624HPT also allows either DIN rail or wall mounting for efficient use of cabinet space.Fiber-Optical Link Capability Extend the Range of Network Deployment
The two SFP slots are compatible with 100Base-FX or 1000Base-SX / LX / WDM through SFP (Small Form Factor Pluggable) fiber-optic transceivers. The fiber optical uplink capability guarantees the throughput to all nodes hooked into the network and the Gigabit Ethernet distance can be extended from 550 meters (Multi-Mode fiber cable) up to 10/20/30/40/50/70/120 kilometers (Single-Mode fiber or WDM fiber).
Adjustable 6-Port Switch Mode or 4 + 2 Fiber Redundant Mode
Via the built-in DIP switch, the IGS-624HPT can be configured as 6-port Ethernet switch or 4+2 fiber redundant mode. With the 6-port switch mode, the IGS-624HPT can operate in Store-and-Forward mechanism with high performance; on the other hand, when in the 4+2 fiber redundant mode, it provides rapid fiber redundancy of link for highly critical Ethernet applications. The redundant mode also supports auto-recovering function. If the destination port of a packet is link down, it will forward the packet to the other port of the backup pair.

IGT-805AT

Flexible, Reliable and Industrial-grade Network Distance Extension Solution
PLANET IGT-805AT is an Industrial Gigabit Media Converter providing non-blocking wire-speed performance and great flexibility for Gigabit Ethernet extension in harsh industrial environment. It is equipped with one 10/100/1000BASE-T RJ45 copper and one 100/1000BASE-X SFP fiber optic interface delivered in an IP30 rugged strong case with redundant power system. The IGT-805AT is well suited for applications in deploying surveillance system, and securing control and wireless service in climatically demanding environments with wide temperature range from -40 to 75 degrees C. With 9K jumbo frame feature support, the IGT-805AT can handle extremely large amounts of data transmission in a secure topology linking to a backbone or high-power servers.
Fiber-Optic Link Capability Enables Extension of Network Deployment
The SFP slot of the IGT-805AT is compatible with 100BASE-FX and 1000BASE-SX / LX / WDM through SFP (Small Form Factor Pluggable) fiber-optic transceivers. The fiber optic uplink capability guarantees the throughput to all nodes hooked into the network and the Gigabit Ethernet distance can be extended from 550 meters (multi-mode fiber cable) to 10/20/30/40/50/60/70/120 kilometers (single-mode fiber cable), and also the Fast Ethernet distance can be extended from 2km (multi-mode fiber cable) to 20/40/60 kilometers (single-mode fiber cable). It is the ideal product for applications within the factory data centers and distributions.
Enhanced Smart Management Features
The IGT-805AT provides auto MDI/MDI-X on its TP port and built-in Link Fault Pass-through function (LFP). The LFP function includes Link Loss Carry Forward (LLCF) and Link Loss Return (LLR), both of which can immediately alarm administrators the problem of the link media and provide efficient solution to monitoring the net. LLCF means when a device connected to the converter and the TP line loses the link, the converter’s fiber port will disconnect the link of transmission. LLR means when a device connected to the converter and the fiber line loses the link, the converter’s fiber port will disconnect the link of transmission. Therefore, the IGT-805AT greatly supports the administrators to manage the network efficiently.
Environmentally Hardened Design
The IGT-805AT is equipped with the slim-type IP30 metal case for easy deployment in heavy Industrial demanding environments. With IP30 industrial case protection, the IGT-805AT provides a high level of immunity against electromagnetic interference and heavy electrical surges which are usually found on plant floors or in curbside traffic control cabinets. Being able to operate under the temperature range from -40 to 75 degrees C, the IGT-805AT can be placed in almost any difficult environment. The IGT-805AT also allows either DIN rail or wall mounting for efficient use of cabinet space.
Convenient and Reliable Power System
To enhance the operation reliability and flexibility, the IGT-805AT is equipped with two DC power input connectors for redundant power supply installation. It also possesses an integrated power supply source with wide-ranging voltages (12 to 48V DC or 24V AC) for worldwide high availability applications requiring dual or backup power inputs.

IGT-1205AT

Flexible, Reliable and Industrial-grade Network Distance Extension Solution
PLANET IGT-1205AT is an Industrial Gigabit Media Converter providing non-blocking wire-speed performance and great flexibility for Gigabit Ethernet extension in harsh industrial environment. It is equipped with one 10/100/1000Base-T RJ-45 copper and two 100/1000Base-X SFP fiber optic interfaces delivered in an IP30 rugged strong case with redundant power system. The IGT-1205AT is well suited for applications in deploying surveillance system, and securing control and wireless service in climatically demanding environments with wide temperature range from –40 to 75 degrees C.Fiber-Optic Link Capability Enables Extension of Network Deployment
The two SFP slots are compatible with 100Base-FX or 1000Base-SX / LX / WDM through SFP (Small Form Factor Pluggable) fiber-optic transceivers. The fiber optic uplink capability guarantees the throughput to all nodes hooked into the network and the Gigabit Ethernet distance can be extended from 550 meters (Multi-mode fiber cable) up to 10/20/30/40/50/70/120 kilometers (Single-mode fiber cable), and also the Fast Ethernet distance can be extended from 2km (Multi-mode fiber cable) up to 20/40/60 kilometers (Single-mode fiber cable). They are well suited for applications within the factory data centers and distributions.
Adjustable 3-Port Switch Mode or 2 Fiber Redundant Mode
Via the built-in DIP switch, the two SFP fiber interfaces of the IGT-1205AT can be configured as Ethernet switch mode or Fiber Redundant mode. With the Ethernet switch mode, it can operate in Store-and-Forward mechanism with high performance; with the 2-port Fiber redundant mode, it provides rapid fiber redundancy of link for highly critical Ethernet applications. The redundant mode supports auto-recovering function. If the destination port of a packet is link-down, it will forward the packet to the other port of the backup pair.
Environmentally Hardened Design
The IGT-1205AT is equipped with the slim-type IP30 metal case for easy deployment in heavy Industrial demanding environments. With IP30 industrial case protection, the IGT-1205AT provides a high level of immunity against electromagnetic interference and heavy electrical surges which are usually found on plant floors or in curb side traffic control cabinets. Being able to operate under the temperature range from -40 to 75 degrees C, the IGT-1205AT can be placed in almost any difficult environment. The IGT-1205AT also allows either DIN rail or wall mounting for efficient use of cabinet space.Convenient and Reliable Power System
To enhance the operation reliability and flexibility, the IGT-1205AT is equipped with two DC power input connectors for redundant power supply installation. It also possesses an integrated power supply source with wide-ranging voltages (12 to 48V DC or 24V AC) for worldwide high availability applications requiring dual or backup power inputs.

IGS-1020TF

Industrial-grade, Reliable and Flexible Network Deployment
PLANET IGS-1020TF is an industrial 10-port full Gigabit Ethernet Switch providing non-blocking wire-speed performance and great flexibility for Gigabit Ethernet deployment and extension in harsh environment. It provides 8-port 10/100/1000BASE-T RJ45 copper and 2 extra 100/1000BASE-X SFP fiber optic interfaces delivered in an IP30 rugged strong case with redundant power system. The IGS-1020TF is well suited for applications in deploying surveillance system, secure control and wireless service in climatically demanding environments with wide temperature range from -40 to 75 degrees C.
Fiber-Optic Link Capability Enables Extension of Network Deployment
The two mini-GBIC slots built in the IGS-1020TF support SFP auto-detection and dual speed as it features 100BASE-FX and 1000BASE-SX/LX SFP (Small Form-factor Pluggable) fiber-optic modules, meaning the administrator now can flexibly choose the suitable SFP transceiver according to the transmission distance or the transmission speed required to extend the network efficiently. The distance can be extended from 550 meters to 2 kilometers (multi-mode fiber) and 10/20/30/40/50/60/70/120 kilometers (single-mode fiber or WDM fiber). They are well suited for applications to uplink to backbone switch and monitoring center in long distance.
Environmentally Hardened Design
With IP30 rugged metal case protection, the IGS-1020TF provides a high level of immunity against electromagnetic interference and heavy electrical surges which are usually found on plant floors or in curbside traffic control cabinets. Being able to operate under the temperature range from -40 to 75 degrees C, the IGS-1020TF can be placed in almost any difficult environment. The IGS-1020TF also allows either DIN rail or wall mounting for efficient use of cabinet space.Dual Power Input for High Availability Network System
The IGS-1020TF features a strong dual power input system with wide-ranging voltages (12V~48V DC or 24V AC) incorporated into customer’s automation network to enhance system reliability and uptime. In the example below, when power supply 1 fails to work, the hardware failover function will be activated automatically to keep powering the IGS-1020TF via power supply 2 alternatively without any loss of operation.
Energy Saving
The IGS-1020TF, incorporating advanced green networking technologies and and IEEE 802.3az protocol based power saving, is able to provide power saving up to 50% less energy but maintains high performance efficiently.
Link Down power saving
The Link Down power saving goes beyond IEEE specifications to automatically lower power consumption for a given port when it is not linked. With the Link Down power saving technology, the IGS-1020TF will automatically adjust power usage of the ports that are shut down or not connected to network device.■ Intelligent power scale based on cable length
Intelligent power scale is an intelligent algorithm that actively determines the appropriate power level based on cable length. When the IGS-1020TF is connected with Ethernet cable shorter than 20m, a device can obtain maximum power saving because the IGS-1020TF would automatically detect the Ethernet cable length and diminish power usage. The connected device can substantially reduce the overall power consumption, which makes a significant contribution to energy saving
Robust Protection
The IGS-1020TF provides contact discharge of ±6KV DC and air discharge of ±8KV DC for Ethernet ESD protection. It also supports ±4KV surge immunity to improve product stability and protects users’ networks from devastating ESD attacks, making sure the flow of operation does not fluctuate.Plug and Power Network Deployment
All of the RJ45 copper interfaces in the IGS-1020TF support 10/100/1000Mbps auto negotiation for optimal speed detection through RJ45 Category 6, 5 or 5e cables. The standard auto-MDI/MDI-X support can detect the type of connection to any Ethernet device without requiring special straight-through or crossover cables.

IGS-620TF

Flexible, Reliable and Industrial-grade Network Distance Extension Solution
The PLANET IGS-620TF is an Industrial 6-port full Gigabit Ethernet Switch providing non-blocking wire-speed performance and great flexibility for Gigabit Ethernet extension in harsh industrial environment. It provides 4-port 10/100/1000Base-T RJ-45 copper and 2 extra 100/1000Base-X SFP fiber optic interfaces delivered in an IP30 rugged strong case with redundant power system. The IGS-620TF is well suited for applications in deploying surveillance system, and securing control and wireless service in climatically demanding environments with wide temperature range from -40 to 75 degrees C.Fiber-Optical Link Capability Enables Extension of Network Deployment
The two SFP slots are compatible with 100Base-FX or 1000Base-SX / LX / WDM through SFP (Small Form Factor Pluggable) fiber-optic transceivers. The fiber optical uplink capability guarantees the throughput to all nodes hooked into the network and the Gigabit Ethernet distance can be extended from 550 meters (Multi-Mode fiber cable) up to 10/20/30/40/50/70/120 kilometers (Single-Mode fiber cable), also the Fast Ethernet distance can be extended from 2km (Multi-Mode fiber cable) up to 20/40/60 kilometers (Single-Mode fiber cable). They are well suited for applications within the factory data centers and distributions
Adjustable 6-Port Switch Mode or 4 + 2 Fiber Redundant Mode
The two SFP slots allow to change the operation mode with its built-in DIP switch. Via the built-in DIP switch, the IGS-620TF can be configured as 6-port Ethernet switch or 4+2 fiber redundant mode. With the 6-port switch mode, the IGS-620TF can operate in Store-and-Forward mechanism with high performance; on the other hand, when in the 4+2 fiber redundant mode, it provides rapid fiber redundancy of link for highly critical Ethernet applications. The redundant mode also supports auto-recovering function. If the destination port of a packet is link-down, it will forward the packet to the other port of the backup pair.
Environmentally Hardened Design
The IGS-620TF is equipped with the slim-type IP30 metal case for easy deployment in heavy Industrial demanding environments. With IP30 industrial case protection, the IGS-620TF provides a high level of immunity against electromagnetic interference and heavy electrical surges which are usually found on plant floors or in curb side traffic control cabinets. Being able to operate under the temperature range from -40 to 75 degrees C, the IGS-620TF can be placed in almost any difficult environment. The IGS-620TF also allows either DIN rail or wall mounting for efficient use of cabinet space.Convenient and Reliable Power System
To enhance the operation reliability and flexibility, the IGS-620TF is equipped with two DC power input connectors for redundant power supply installation. It also possesses an integrated power supply source with wide-ranging voltages (12 to 48V DC or 24V AC) for worldwide high availability applications requiring dual or backup power inputs.

IGS-624HPT

Long Distance High Power PoE and Gigabit Data Extension Solution
The PLANET IGS-624HPT is an Industrial Gigabit 802.3at PoE+ Switch providing non-blocking wire-speed performance and great flexibility for Gigabit Ethernet extension in harsh industrial environment. It provides 4-port 10/100/1000Base-T copper with 802.3af/at PoE injector and 2 extra 100/1000Base-X SFP fiber optic interfaces delivered in an IP30 rugged strong case with redundant power system. The IGS-624HPT is well suited for applications in deploying surveillance system, and securing control and wireless service in climatically demanding environments with wide temperature range from -40 to 75 degrees C.High Power PoE for Security and Public Service Applications
To fulfill the demand of High Power PoE for network applications, the IGS-624HPT provides 4 10/100/1000Mbps ports featuring both IEEE 802.3af and IEEE 802.3at Power over Ethernet Plus (PoE+) that combine up to 30-watt of power output and data per port over one Cat.5E / 6 Ethernet cable. With totally 120-watt PoE output capability on the whole system, the IGS-624HPT is designed specifically to satisfy the growing demand of higher power consuming network PD (powered devices) such as PTZ (Pan, Tilt & Zoom) / Speed Dome network cameras, multi-channel (802.11a / b / g / n) outdoor wireless LAN access points and other PoE network devices by providing double PoE power, rather than the current conventional 802.3af PoE.
Intelligent LED Indicator for Real-time PoE Usage
The IGS-624HPT helps users to monitor current status of PoE power usage easily and efficiently by its advanced LED indication. Called “PoE Power Usage”, the front panel of the Industrial Gigabit PoE+ Switch has four orange LEDs indicating 30W, 60W, 90W and 120W of PoE power usage.
Convenient and Reliable Power System
To facilitate the 802.3at High Power PoE usage with the commonly used 48V DC power input in transportation and industrial-level applications, the IGS-624HPT adopts 48V DC to 52V DC power boost technology to solve power source issue which is not required for special power supplies to achieve the level of High Power PoE+ output. To enhance the operation reliability and flexibility, the IGS-624HPT is equipped with two DC power input connectors for redundant power supply installation.
High Power Budget for PoE Extension
With 30-watt PoE output capability, the IGS-624HPT can extend much longer distance by using PLANET PoE Extender for powering up the IEEE 802.3af PoE PD devices which can be installed over more than 100 meters away. By daisy-chaining multiple PLANET PoE Extenders, it offers the great flexibility of doubling, tripling or quadrupling the distance of PoE network.
Environmentally Hardened Design
The IGS-624HPT is equipped with the rugged IP30 metal case for easy deployment in heavy Industrial demanding environments. With IP30 industrial case protection, the IGS-624HPT provides a high level of immunity against electromagnetic interference and heavy electrical surges which are usually found on plant floors or in curb side traffic control cabinets. Being able to operate under the temperature range from -40 to 75 degrees C, the IGS-624HPT can be placed in almost any difficult environment. The IGS-624HPT also allows either DIN rail or wall mounting for efficient use of cabinet space.Fiber-Optical Link Capability Extend the Range of Network Deployment
The two SFP slots are compatible with 100Base-FX or 1000Base-SX / LX / WDM through SFP (Small Form Factor Pluggable) fiber-optic transceivers. The fiber optical uplink capability guarantees the throughput to all nodes hooked into the network and the Gigabit Ethernet distance can be extended from 550 meters (Multi-Mode fiber cable) up to 10/20/30/40/50/70/120 kilometers (Single-Mode fiber or WDM fiber).
Adjustable 6-Port Switch Mode or 4 + 2 Fiber Redundant Mode
Via the built-in DIP switch, the IGS-624HPT can be configured as 6-port Ethernet switch or 4+2 fiber redundant mode. With the 6-port switch mode, the IGS-624HPT can operate in Store-and-Forward mechanism with high performance; on the other hand, when in the 4+2 fiber redundant mode, it provides rapid fiber redundancy of link for highly critical Ethernet applications. The redundant mode also supports auto-recovering function. If the destination port of a packet is link down, it will forward the packet to the other port of the backup pair.