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Questions about this product? Free pre-sales support from a senior specialist — product questions, compatibility checks, BOM quotes, price confirmation — typically answered within one business day. Need camera placement or system design work? Engineering time is $175 per hour (qty 1 = 1 hour). Hardware buyers get up to one hour ($175) credited back on their order.
The Black Box FOLB50M1-LC is an OM1 multimode fiber optic loopback module. It terminates an LC connector and is used to test network equipment ports, such as network interface cards (NICs) or switches, by looping the transmit (TX) signal back to the receive (RX) port. This diagnostic tool is critical for verifying port functionality and troubleshooting fiber optic network connectivity issues without requiring a full network link. Its primary application is in testing and diagnostics within data centers, enterprise networks, and telecommunications environments. The model number FOLB50M1-LC specifies its OM1 multimode capability and LC connector type.
This loopback module is designed for use with any network equipment featuring an LC duplex connector that requires a loopback test for diagnostics. It is compatible with standard LC duplex ports found on network switches, routers, servers, and media converters supporting OM1 multimode fiber specifications. It is not specific to any particular vendor's equipment but relies on the standard LC duplex interface.
Ensure the LC connector on the loopback module and the corresponding port on the network device are clean before insertion to prevent performance degradation or damage. The module is designed for static testing and should not be subjected to excessive force or repeated insertion/removal cycles beyond normal usage to maintain connector integrity.
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