What This Product Does
TL-FC311B-20 is a gigabit media converter, providing a gigabit RJ-45 port and a gigabit SC fiber port, which can convert between electrical and optical signals. And long-distance data transmission through optical fiber can be applied to commercial scenarios such as park security monitoring and wireless networking.

How This Product Works
TL-FC311B-20 adopts WDM (wavelength division multiplexing) technology, helping send and receive data at a distance of up to 20 km with only a single mode fiber, which saves half of the cable deployment cost for customers. TL-FC311B-20 transmits data at 1310 nm wavelength and receives data at 1550 nm wavelength on optical fiber. Therefore, the terminal device used in conjunction with the TL-FC311B-20 should send data at a wavelength of 1550 nm and receive data at a wavelength of 1310 nm. TP-Link another media converter TL-FC311A-20 is one of the products that can cooperate with TL-FC311B-20.

Other Features
Besides, this media converter can be used as a standalone device (no rack required) or used with TP-Link's TL-FC1420 rack for auto MDI/MDI-X in TX port in which duplex mode is automatically negotiated.

Specification

Product
Product id	862581
Brand	TP-Link
Partnr	TL-FC311B-20
EAN/UPC code	6935364072926
Warranty (months)	2 year
Network
Maximum data transfer rate	1000 Mbit/s
Networking standards	IEEE 802.3, IEEE 802.3ab, IEEE 802.3i, IEEE 802.3u, IEEE 802.3x, IEEE 802.3z
Ethernet interface type	Gigabit Ethernet
Ethernet LAN data rates	10, 100, 1000 Mbit/s
Data transfer rate	1000 Mbit/s
Ports & interfaces
Connectivity technology	Wired
Ethernet LAN (RJ-45) ports	1
Fiber ports quantity	1
Fiber optic connector	SC
DC-in jack	Y
Performance
Maximum transfer distance	100 m
Wavelength	1550 nm
Wavelength-division multiplexing (WDM)	Y
Fiber mode structure	Single-mode
Fiber cable diameters supported (core/cladding)	9/125 µm
Design
Internal	N
Product colour	Black
LED indicators	Activity, Link, Power
Power
Output voltage	5 V
Output current	0.6 A
Weight & dimensions
Width	94.5 mm
Depth	73 mm
Height	27 mm
Operational conditions
Operating temperature (T-T)	0 - 50 °C
Storage temperature (T-T)	-40 - 70 °C
Operating relative humidity (H-H)	10 - 90 procent
Storage relative humidity (H-H)	5 - 90 procent
Packaging content
AC adapter included	Y
Manual	Y