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CHAPTER 2: OVERVIEW
2.1 OVERVIEW
The Industrial Switches and Industrial Media Converters operate at temperature extremes of 14 to 140° F (-10 to +60* C). These units are
ideal for harsh environments constrained by space.
The switches provide four twisted-pair device ports and one twisted-pair or fiber uplink port. The media converters link twisted-pair
segments or devices to fiber segments or devices.
2.2 AVAILABLE MODELS
The models listed below are available.
2.2.1 INDUSTRIAL SWITCHES
LBH120A-H (four RJ-45 twisted-pair device connectors, and one RJ-45 twisted-pair uplink connector)
LBH120A-H-SC (four RJ-45 twisted-pair device connectors, and one pair of SC fiber uplink connectors)
LBH120AH-ST (four RJ-45 twisted-pair device connectors, and one pair of ST fiber uplink connectors)
LBH120A-H-20K-SC (four RJ-45 twisted-pair device connectors, and one pair of SC fiber uplink connectors, 20 km distance)
LBH120A-H-40K-SC (four RJ-45 twisted-pair device connectors, and one pair of SC fiber uplink connectors, 40 km distance)
LBH120A-H-75K-SC (four RJ-45 twisted-pair device connectors, and one pair of SC fiber uplink connectors, 75 km distance)
2.2.2 INDUSTRIAL MEDIA CONVERTERS
LMC270A-MM-SC (one RJ-45 twisted-pair connector and one pair of SC multimode fiber connectors)
LMC270A-MM-ST(one RJ-45 twisted-pair connector and one pair of ST multimode fiber connectors)
LMC270A-SM-20K-SC (one RJ-45 twisted-pair connector and one pair of SC single-mode fiber connectors, 20 km distance)
LMC270A-SM-40K-SC (one RJ-45 twisted-pair connector and one pair of SC single-mode fiber connectors, 40 km distance)
LMC270A-SM-75K-SC (one RJ-45 twisted-pair connector and one pair of SC single-mode fiber connectors, 75 km distance)
LMC270A-SM-20K-ST (one RJ-45 twisted-pair connector and one pair of ST single-mode fiber connectors, 20 km distance)
2.3 FEATURES
Complies with EN61000-6-2 & EN61000-6-4 EMC Generic standard immunity for industrial environment.
Supports IEEE 802.3az 10BASE-TE only. 10BASE-T is not supported. 10BASE-TE is fully interoperable with 10BASE-T over 328 feet
(100 meters) of class D (Category 5) or better cabling as specified in ISO/IEC 11801:1995.
Supports 802.3az/802.3u/802.3x. Auto-negotiation: 10/100Mbps, Full/Half-duplex. Auto MDI/MDIX.
100BASE-FX: Multi mode SC or ST type, Single mode SC or ST type.
100BASE-BX: WDM Multi mode or Single mode SC type.
Supports 1024 MAC addresses, 448K bits buffer memory.
IEEE802.3x Flow control for Full-duplex, Back pressure for Half-duplex.
Non-blocking architecture and full wire-speed forwarding rate.