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IFB-244 Series

Industrial 2-Channel Optical Fiber Bypass Switch


  • Description
  • Specification
  • Application

To protect the critical fiber optic network from power system failure, PLANET IFB-244 Series is an ultra-fast auto-recovering solution to prevent and maintain fiber network communication during power loss.

The IFB-244 Series is an industrial-grade optical fiber bypass switch with built-in 4 duplex LC or SC connectors featuring 2-channel duplex or 4-channel simplex fiber connection with optical bypass function. The optical fiber ports support 100Gbps/40Gbps/10Gbps/1Gbps/100Mbps fiber connections. It automatically switches optic network traffic to prevent link failure during power loss. It also allows the local network switch to be replaced or removed without network downtime.

Optical Fiber Bypass Mechanism

The IFB-244 Series applies fiber-to-fiber technology to achieve ultra-low losses and ultra-fast switching time. Two of the fiber ports are used to connect to two remote fiber switches and the other two fiber ports are used to connect to the local fiber switch. The IFB-244 Series and the local fiber Ethernet switch are powered from the same power source.

When the system power is on, the IFB-244 Series operates in the Normal mode and forwards Ethernet packets between two remote fiber switches and the local fiber switch.

When the system power failure occurs, the IFB-244 Series operates in the Bypass mode that directly forwards Ethernet packet between two remote fiber switches and bypass the local fiber switch.

Once the system power is recovered, the network traffic resumes operation between two remote fiber switches and local fiber switch.

Operation ModePower SourceOptical Traffic Route
Normal ModePower onIFB-244 forwards packets between two remote network switches and the local switch
Bypass ModePower lossIFB 244 directly forwards packets between two remote network switches and bypass the local switch

Environmentally Hardened Design

The IFB-244 Series possesses an integrated power supply source with a wide range of voltages (9 to 48V DC or 24V AC) for worldwide high availability applications requiring dual or backup power inputs. Being able to operate under wide temperature range from -40 to 75 degrees C, the IFB-244 Series can be placed in almost any difficult environment.

Robust Protection

The IFB-244 Series provides contact discharge of ±6KV DC and air discharge of ±8KV DC for Ethernet ESD protection. It also supports ±6KV surge immunity to improve product stability and protects users’ networks from devastating ESD attacks, making sure the flow of operation does not fluctuate.

Flexible and Easy Installation with Limited Space

The IFB-244 Series is specially designed to be installed in a narrow environment, such as wall enclosure. It can be installed by fixed wall mounting or DIN rail, thereby making its usability more flexibly and easily in any space-limited location.

Dual Power Input for High Availability Network System

The IFB-244 Series features a strong dual power input system with wide-ranging voltages 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 IFB-244 Series via power supply 2 without any break of operation.

Ordering Information
IFB-244-SLC Industrial 2-Channel Optical Fiber Bypass Switch – single mode LC connector IFB-244-SSC Industrial 2-Channel Optical Fiber Bypass Switch – single mode SC connector IFB-244-MLC Industrial 2-Channel Optical Fiber Bypass Switch – multimode LC connector IFB-244-MSC Industrial 2-Channel Optical Fiber Bypass Switch – multimode SC connector

Hardware Specifications
Optic InterfacesIFB-244-SLC: 4 x Duplex LC
IFB-244-SSC: 4 x Duplex SC
IFB-244-MLC: 4 x Duplex LC
IFB-244-MSC: 4 x Duplex SC
Optic ModeIFB-244-SLC/SSC: Single Mode
IFB-244-MLC/MSC: Multimode
Optic WavelengthIFB-244-SLC/SSC: 1310nm & 1550nm
IFB-244-MLC/MSC: 850nm & 1300nm
Operating WavelengthIFB-244-SLC/SSC: 1260~1620nm
IFB-244-MLC/MSC: 850nm±40 / 1300nm±40
Bypass Return LossIFB-244-SLC/SSC: >50dB
IFB-244-MLC/MSC: >35dB
Bypass Insertion LossTypical: 1.0dB
Max: 1.5dB
Bypass Switching Time< 8ms
ESD ProtectionAir 8kV, Contact 6kV
EnclosureIP30 metal case
InstallationDIN-rail kit and wall-mount kit
ConnectorRemovable 6-pin terminal block for power input
Pin 1/2 for Power 1, Pin 3/4 for fault alarm, Pin 5/6 for Power 2
AlarmOne relay output for power failure.
Alarm relay current carry ability:1A@24V DC
LED IndicatorSystem:
 Power 1 (Green), Power 2 (Green), Fault (Red)
 Normal operation (Green)
Dimensions (W x D x H)32 x 87 x 135 mm
WeightIFB-244-SLC: 390g
IFB-244-SSC: 485g
IFB-244-MLC: 390g
IFB-244-MSC: 485g
Power RequirementsDual 9-48V DC with reverse polarity protection
24V AC
Power Consumption0.54 watts/1.84BTU
CablingIFB-244-SLC/SSC: 9/125µm
IFB-244-MLC/MSC: 50/125µm
Standards Conformance
Regulatory ComplianceFCC Part 15 Class A
Stability TestingIEC60068-2-32 (free fall)
IEC60068-2-27 (shock)
IEC60068-2-6 (vibration)
Operating Temperature-40~75 degrees C
Storage Temperature-40~85 degrees C
Humidity5~95% (non-condensing)

The IFB-244 Series industrial optical fiber bypass switch can be used in critical and major optical networks where fiber link failures are not tolerated, such as in power substation, train and bus station, IP surveillance system, railway monitoring, communication systems, and factory automation.

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