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EX-SFP-10GE-ERD3977-C
SFP+ 10GbE DWDM Pluggable 1539.77nm 40KM Juniper EX Compatib...
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US Government & Defense




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EX-SFP-10GE-ERD3977-C is a 10G transceiver module in the SFP form factor that delivers high-speed Ethernet connectivity. It supports a 10G data rate, uses LC connectors, and is designed for long-distance operation over single-mode fiber, making it ideal for extended-range applications.
EX-SFP-10GE-ERD3977-C is engineered for demanding environments such as data centers, enterprise networks, and telecom infrastructures. Its compact design, adherence to industry standards, and focus on robust performance for extended reach make it a reliable choice for high-bandwidth network deployments.
EX-SFP-10GE-ERD3977-C price is is available on request. Get immediate quote.
Request bulk order quote for EX-SFP-10GE-ERD3977-C for additional pricing. Browse the full Juniper Ex Series Compatible Sfp+ Dwdm series or explore all Orm products.
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| Product Type | Transceiver | Transceiver | Transceiver | Transceiver | Transceiver |
| Form Factor | SFP | SFP+ | SFP+ | SFP | SFP |
| Data Rate | 10G | 10G | 10G | 10G | 10G |
| Connector Type | LC | LC | LC | LC | LC |
| Wavelength | 1550nm | 1310 nm | 1550nm | 1310 nm | 1550 nm |
| Transmission Distance | Extended-Range | Extended-Range | Extended-Range | Extended-Range | Long-Range |
| Fiber Type | Single-mode | Single-mode | Single-mode | Single-mode | Single-mode |
| Max Distance | 40 km | 40 km | 40 km | 40 km | 40 km |
| Supported Protocols | Ethernet | Ethernet | Ethernet | Ethernet | Ethernet |
| Network Interface | Ethernet | Ethernet | Ethernet | Ethernet | Ethernet |
| Operating Temperature | 0 to 70°C | 0°C to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C |
| Storage Temperature | -40 to 85°C | -40°C to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C |
| Input Voltage | 3.3V | 3.3V | 3.3V | 3.3V | 3.3V |
| Product Name | EX-SFP-10GE-ERD3977-C | EX-SFP-10GE-ZRD3112-C | EX-SFP-10GE-ERD4532-C | EX-SFP-10GE-ERD4931-C | EX-SFP-10GE-ERD5332-C |
Every unit is authentic, sourced through trusted and authorised channels, and serial-verified on request. Genuine networking and IT hardware, guaranteed, or your money back.
New products are backed by up to 3 years of extended warranty, and certified refurbished units by up to 3 months, for dependable protection on every order. Coverage is clear, honoured in full, and confirmed on each product page.
If a unit ever falls short, our streamlined RMA process gets a replacement to you fast, with advance replacement available to keep your network running. No jargon, no runaround.
Every device is inspected, bench-tested, and firmware-verified, with configurations wiped before dispatch. Additional testing can be arranged to confirm full working condition on request.
Our specialists assist with compatibility, configuration, licensing, and installation, before and after you buy. Real hardware expertise, whenever you need it.
dispatched quickly and shipped worldwide from regional hubs, fully tracked and insured.
Reviewed on the 31 October 2022
Accurate 1539.77nm channel. Reached our 40km site with clear signal and zero errors detected.
Reviewed on the 29 May 2021
Professional DWDM performance. Significant fiber savings. Fully recognized by our Juniper EX hardware switches.
Reviewed on the 25 April 2021
Consistent 10G speeds. Wavelength precision is impressive. Robust build quality for mission-critical regional networking.
Reviewed on the 15 December 2023
Flawless deployment. These 40km modules provide rock-solid stability and accurate monitoring via CLI.
Reviewed on the 19 December 2022
Solid signal integrity. Immediate recognition as native hardware. High value for our 40km regional connectivity.
Reviewed on the 2 August 2020
Outstanding reliability. Performance is identical to OEM hardware. Steady signaling over our multiplexed infrastructure.
Reviewed on the 14 February 2017
Steady and efficient. The 1539.77nm channel is perfectly stable. High-quality construction and professional results.
Reviewed on the 12 January 2019
Top-tier reliability. Reached target distance easily with great margins. Rugged construction and dependable throughput.
The EX-SFP-10GE-ERD3977-C is a DWDM pluggable 10GbE transceiver module operating at 1539.77 nm with a 40 km reach, fully compatible with Juniper EX series devices.
It operates precisely at 1539.77 nm according to the ITU-T DWDM grid.
It supports up to 40 km on standard single-mode fiber (ITU-T G.652).
It is fully compatible with all Juniper EX series switches and routers featuring SFP+ slots.
Yes, it meets SFF-8431, SFF-8432 and SFF-8472 multi-source agreement (MSA) standards.
Yes, it provides real-time digital diagnostics for parameters such as optical power, temperature and supply voltage.
It requires single-mode fiber (SMF) with LC duplex connectors.
It uses dual LC duplex fiber connectors for transmit and receive channels.
Its typical power consumption is less than 1.0 W.
Yes, the module is hot-pluggable and can be inserted or removed without powering down the system.
It operates reliably between 0 °C and 70 °C (commercial temperature range).
It supports 10G Ethernet (10GBase-ER) protocol.
DWDM uses tighter wavelength spacing (0.8 nm) for higher channel density compared to CWDM’s wider 20 nm spacing.
Use a fiber-optic cleaning kit with lint-free wipes or foam swabs to remove dust and debris before insertion.
It includes a one-year limited warranty covering defects in materials and workmanship.