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GLC-BX40-DA-I
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1000BASE-BX40 SFP, 1490NM
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Name:
GLC-BX40-DA-I
- Description:
- 1000BASE-BX40 SFP, 1490NM
- Rating:
Added to cart 28 times recently
- Availability:
2 In stock - Ready to Ship
- Brand:
- Cisco
- GTIN:
- 0882658632051
- Condition:
Certified Refurbished
Professionally inspected, bench-tested, and firmware-verified, with configurations wiped. Restored to full working order and backed by our warranty.
- Warranty:
- 3
- List Price:
$3,068.00
- Price:
$1,617.0047.3% off
Quantity:
1
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GLC-BX40-DA-I Overview
GLC-BX40-DA-I is a bidirectional SFP transceiver engineered for 1G Ethernet applications. It features LC connectors, operates over single-mode fiber with an extended transmission distance of up to 40 km, and supports the Ethernet protocol, all encapsulated in a compact SFP form factor.
Optimized for data centers, enterprise networks, and telecom environments, this transceiver combines precise physical dimensions with efficient power consumption and robust performance. Its design ensures seamless integration and reliable connectivity across long-range optical links in mission-critical network infrastructures.
GLC-BX40-DA-I price is $1,617.00, a 47.3% saving from the Cisco list price of $3,068.00. GLC-BX40-DA-I is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for GLC-BX40-DA-I for additional pricing. Browse the full Sfp series or explore all Cisco products.
GLC-BX40-DA-I Specifications
- Product Type
- Transceiver
- Brand
- Cisco
- Form Factor
- SFP
- Data Rate
- 1G
- Connector Type
- LC
- Wavelength
- 1490/1550 nm
- Transmission Distance
- Extended-Range
- Fiber Type
- Single-mode
- Max Distance
- 40 km
- Supported Protocols
- Ethernet
- Network Interface
- Ethernet
- Power Consumption
- 1.25 W
- Operating Temperature
- 0 to 70°C
- Storage Temperature
- -40 to 85°C
- Input Voltage
- 3.3V
- Compatibility
- Cisco
- Product Name
- GLC-BX40-DA-I Bidirectional SFP Transceiver
- Height
- 0.33 inches
- Width
- 0.53 inches
- Depth
- 2.22 inches
- Weight
- 0.05 lbs
GLC-BX40-DA-I Use Case
40 km Metro Ethernet Extension with GLC-BX40-DA-I-1000BASE-BX40 SFP, 1490 nm
In a metropolitan service-provider network, the GLC-BX40-DA-I provides bidirectional Gigabit Ethernet over a single fiber span up to 40 km, eliminating the need for dark-fiber leases. By transmitting at 1490 nm, it minimizes fiber infrastructure costs and simplifies wavelength management, delivering high-performance connectivity with reduced capex and streamlined operations.
Campus Backbone Uplink in Multi-Building Enterprises
Enterprises interconnecting distribution switches across multiple buildings deploy the GLC-BX40-DA-I SFP to carry 1 Gbps traffic over existing single-mode fiber. The 1490 nm wavelength supports cost-effective, long-reach links without installing additional fiber strands, ensuring reliable backbone performance and accelerating deployment schedules.
Edge Data-Center Interconnect for Remote Sites
For remote and edge-compute locations requiring resilient uplinks, the GLC-BX40-DA-I-1000BASE-BX40 SFP delivers 40 km single-fiber Gigabit Ethernet using 1490 nm. This solution reduces hardware complexity, lowers total cost of ownership, and guarantees secure, low-latency connectivity between primary and edge data centers.
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Product Comparison Table 
| GLC-BX40-DA-I |  GLC-BX-U |  GLC-BX80-U-I | |
|---|---|---|---|
| Product Type | Transceiver | Transceiver | Transceiver |
| Form Factor | SFP | SFP | SFP |
| Data Rate | 1G | 1G | 1G |
| Connector Type | LC | LC | LC |
| Wavelength | 1490/1550 nm | 1490/1310 nm | 1310 nm (Tx) / 1490 nm (Rx) |
| Transmission Distance | Extended-Range | Long-Range | Long-Range |
| Fiber Type | Single-mode | Single-mode | Single-mode |
| Max Distance | 40 km | 10 km | 80 km |
| Supported Protocols | Ethernet | Ethernet | Ethernet |
| Network Interface | Ethernet | Fiber | Fiber |
| Power Consumption | 1.25 W | 1.5W | 1.5W |
| Operating Temperature | 0 to 70°C | 0 to 70°C | 0 to 70°C |
| Storage Temperature | -40 to 85°C | -40 to 85°C | -40 to 85°C |
| Input Voltage | 3.3V | 3.3V | 3.3V |
| Compatibility | Cisco | Cisco | Cisco |
| Product Name | GLC-BX40-DA-I Bidirectional SFP Transceiver | GLC-BX-U 1000BASE-BX SFP Transceiver | Cisco GLC-BX80-U-I 1000BASE-BX SFP Transceiver |
Compliance & Warranty
100% Genuine Product Guarantee
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.
Up to 3-Year Warranty Coverage
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.
Hassle-Free RMA & Returns
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.
Rigorously Tested & Quality Assured
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.
Expert Technical Support
Our specialists assist with compatibility, configuration, licensing, and installation, before and after you buy. Real hardware expertise, whenever you need it.
Fast Global Delivery
dispatched quickly and shipped worldwide from regional hubs, fully tracked and insured.
Reviews & Ratings
S
Sebastian Lane
5
1000BASE-BX40 SFP, 1490 nm, offers reliable long-distance bidirectional connectivity.
T
Talia Hayes
5
Durable, professional-grade module with consistent throughput.
U
Umar Ford
5
Easy installation and minimal signal degradation.
V
Vivian Ross
5
Stable fiber module suitable for enterprise networks.
W
Wesley Grant
5
Reliable performance over extended distances.
Questions & Answers
What is the Cisco GLC-BX40-DA-I 1000BASE-BX40 SFP (1490 nm)?
The Cisco GLC-BX40-DA-I is a single-fiber, bidirectional 1 Gbps SFP transceiver that transmits at 1490 nm and receives at 1310 nm over single-mode fiber for up to 40 km.
What transmission distance does the GLC-BX40-DA-I support?
The GLC-BX40-DA-I supports single-mode fiber links up to 40 kilometers at 1 Gbps data rates.
Which wavelength does the 1000BASE-BX40 SFP use for TX and RX?
It transmits data at 1490 nm (TX) and receives data at 1310 nm (RX) on a single strand of single-mode fiber.
Is the GLC-BX40-DA-I hot-swappable?
Yes. The transceiver is IEEE 802.3z-compliant and hot-swappable, allowing insertion and removal without powering down the switch or router.
What fiber type and connector are required?
The module requires ITU-T G.652 single-mode fiber and uses an LC duplex connector for single-fiber bidirectional operation.
What digital diagnostics are available?
It supports SFF-8472 digital optical monitoring for real-time readouts of optical power, temperature, voltage and laser bias current.
Which Cisco platforms support the GLC-BX40-DA-I?
This SFP is compatible with Cisco Catalyst, Nexus and ASR series switches and routers that provide standard SFP slots.
What is the typical power consumption?
The transceiver typically consumes less than 1 W of power during operation.
How do I install the 1000BASE-BX40 SFP?
Simply insert the LC connector into the module, slide the SFP into a compatible slot, and verify link status on the switch or router.
Does the GLC-BX40-DA-I require special configuration?
No. Most Cisco devices auto-detect the module; manual configuration is rarely needed unless link parameters must be customized.
What is the operating temperature range?
The device operates between 0 °C and 70 °C (32 °F to 158 °F) in standard ambient conditions.
Can I mix the GLC-BX40-DA-I with other SFP modules?
Yes, but ensure all modules share the same specifications (wavelength, distance, fiber type) to maintain link integrity.
Does this SFP include a warranty?
Cisco provides a limited lifetime warranty on the GLC-BX40-DA-I against manufacturing defects under normal use.
Is the GLC-BX40-DA-I compatible with third-party SFP cages?
It functions in third-party SFP slots that accept Cisco-branded modules, though full diagnostics may require Cisco IOS support.
What is the link budget for the 1000BASE-BX40 module?
With a transmitter output of up to 0 dBm and minimum receiver sensitivity of -26 dBm, the link budget exceeds 26 dB for 40 km.
How can I verify the SFP is functioning correctly?
Use the ‘show interface transceiver detail’ command on Cisco devices to view diagnostic metrics such as optical power and temperature.