EX-SFP-1GE-T: Juniper 1000BASE-T SFP Copper RJ-45 Transceiver
Also listed as: 740-013111, FCLF-8521-3-J
The Juniper EX-SFP-1GE-T is a 1000BASE-T SFP copper transceiver converting an optical SFP slot into an RJ-45 Gigabit Ethernet port over twisted pair cabling up to 100 meters.
Specifications
| Part number | EX-SFP-1GE-T |
|---|---|
| Brand | Juniper |
| Type | Transceivers |
| Other numbers | 740-013111, FCLF-8521-3-J |
| Status | current |
| Form factor | SFP |
| Speed | 1GbE |
| Connector | RJ-45 |
| Cable type | Cat5e / Cat6 UTP |
| Max distance m | 100 |
About the EX-SFP-1GE-T
The Juniper EX-SFP-1GE-T copper transceiver provides flexible Category 5e and Category 6 twisted pair connectivity by adapting an SFP slot into a standard 8-pin RJ-45 modular interface. It delivers 1000Mbps throughput up to 100 meters, making it practical for connecting copper patch panels, local firewalls, and out-of-band management devices.
Compatibility
Compatible with Juniper EX Series switches, QFX Series data center switches, MX Series routers, and SRX Series firewalls. It plugs into SFP or dual-speed SFP+ ports operating in 1GbE mode, enabling copper media conversion without external interface converters.
How to identify a genuine unit
Housed in a sturdy metal SFP casing featuring an integrated RJ-45 modular socket with an internal spring release latch. The top label bears the Juniper Networks identifier, part number EX-SFP-1GE-T, manufacturing assembly code 740-013111, serial barcode, and safety certifications.
Buying used
Inspect internal RJ-45 contact pins for bending, oxidation, or debris. Insert the transceiver into a switch SFP port, connect a patch cable, and verify that auto-negotiation reliably synchronizes at 1000BASE-T full duplex with clean packet transmission statistics.
Fits these models
- Juniper EX Series EX2200
- Juniper EX Series EX2300
- Juniper EX Series EX2300-C
- Juniper EX Series EX3300
- Juniper EX Series EX3400
- Juniper EX Series EX4200
- Juniper EX Series EX4300
- Juniper EX Series EX4300 Multigigabit
- Juniper EX Series EX4400
- Juniper EX Series EX4400 Multigigabit
- Juniper EX Series EX4600
- Juniper EX Series EX4650
- Juniper EX Series EX9204
- Juniper EX Series EX9208
- Juniper EX Series EX9214
- Juniper MX Series MX10003
- Juniper MX Series MX10008
- Juniper MX Series MX10016
- Juniper MX Series MX104
- Juniper MX Series MX204
- Juniper MX Series MX240
- Juniper MX Series MX304
- Juniper MX Series MX480
- Juniper MX Series MX960
- Juniper QFX Series QFX5100-24Q
- Juniper QFX Series QFX5100-48S
- Juniper QFX Series QFX5100-96S
- Juniper QFX Series QFX5110-32Q
- Juniper QFX Series QFX5110-48S
- Juniper SRX Series SRX300
- Juniper SRX Series SRX320
- Juniper SRX Series SRX340
- Juniper SRX Series SRX345
- Juniper SRX Series SRX380
- Juniper SRX Series SRX550
Check compatibility with Juniper
Before you buy, confirm the exact configuration against the vendor's own lists: firmware levels, operating systems, adapters and optics that Juniper has tested with the Juniper EX-SFP-1GE-T.
- Compatibility Juniper Hardware Compatibility Tool (optics and modules)
- Specifications Juniper TechLibrary
- Support Juniper Support
FAQ
What cabling is supported by the EX-SFP-1GE-T?
It supports standard Category 5, 5e, and 6 unshielded twisted pair copper cables up to 100 meters.
Does EX-SFP-1GE-T support auto-negotiation?
Yes, it supports automatic negotiation and auto-MDI/MDIX crossover detection.
Buying or selling EX-SFP-1GE-T?
New, refurbished or used. Tell us the quantity and condition and we connect you with a vetted reseller in your region, usually within one working day.
Sources
- Juniper Hardware Compatibility Tool EX-SFP-1GE-T, checked 2026-10-27