FCLF8521P2BTL Finisar Compatible Industrial 10/100/1000BASE-T RJ45 SFP
Finisar compatible FCLF8521P2BTL - Key Features
- Compatibility: Finisar
- Media Type: Twisted Pair CAT 5 cable
- Fiber Count: CAT 5
- Connector: RJ45
- Maximum Distance: 100 m
- Supported Data Rate: 0.1 Gbps - 1 Gbps
- DDM/DOM: Supported
- Temperature Range: Industrial -45°C - +85°C
Finisar FCLF8521P2BTL Price
In Stock - Ships Next Business DayFinisar compatible FCLF8521P2BTL Specifications
Form Factor | SFP |
Media Type | Twisted Pair CAT 5 cable |
Fiber Count | CAT 5 |
Connector | RJ45 |
Maximum Distance | 100 m |
Supported Data Rate | 0.1 Gbps - 1 Gbps |
Supported Ethernet Applications | 1000Base-T (Gigabit Ethernet copper), 100Base-T (Fast Ethernet Copper), 10BASE-T (Ethernet Copper) |
DDM/DOM | Supported |
Temperature Range | Industrial -45°C - +85°C |
Power | +3.3V single power supply |
Compliance | CE, RoHS, INF-8074i, SFP MSA |
Finisar compatible FCLF8521P2BTL Datasheet
v3Complete technical specifications and product details
Finisar compatible FCLF8521P2BTL Description
EdgeOptic's FCLF8521P2BTL compatible is a Finisar-coded version of the EdgeOptic 1000M-SFP-TI multi-vendor industrial copper SFP transceiver. FCLF8521P2BTL is the Finisar (Coherent) part number for this RJ45 module, rated for 100 meters over twisted-pair cabling with an operating temperature range of -45°C to +85°C and DDM/DOM diagnostics per the SFP MSA (INF-8074i).
The module runs 10/100/1000BASE-T with IEEE 802.3 twisted-pair auto-negotiation on the copper side. The Coherent datasheet for this part notes it does not assert the RX_LOS link-indication signal, since RX_LOS is internally grounded. Link state and negotiated speed read from the host switch or NIC management interface instead.
This Finisar (Coherent) base part is also sold under other vendors' ordering codes, including FCLF8521P2BTL-DL and FCLF8521P2BTL-A5 suffix variants. These suffixes identify vendor-specific EEPROM coding on the same underlying copper SFP hardware; the exact suffix should be confirmed against the target vendor's own ordering documentation before swapping parts across platforms.
Backed by 15+ years of EdgeOptic compatibility engineering across vendor optical platforms, this compatible ships with a lifetime warranty. For project-quantity pricing or alternative vendor coding, contact our sales team.
Frequently Asked Questions
What do the -DL and -A5 suffixes on FCLF8521P2BTL mean?
The FCLF8521P2BTL-DL and FCLF8521P2BTL-A5 suffixes identify vendor-specific EEPROM coding on the same base Finisar (Coherent) copper SFP hardware, used by different OEMs for their own ordering systems. The suffix identifies the vendor coding, not a different optical design. The exact part number should be confirmed against the target vendor's own ordering documentation before ordering a replacement.
Does FCLF8521P2BTL support a link indication or RX_LOS signal?
No. The Coherent datasheet for this part states that FCLF8521P2BTL supports 10/100/1000BASE-T with auto-negotiation but does not assert the RX_LOS link-indication signal, because RX_LOS is internally grounded. Link state and negotiated speed read from the host switch or NIC management interface instead.