Cisco Compatible GLC-BX-U-1490D-80 / GLC-BX-D-1550D-80 BiDi SFP Transceiver | 1GBASE-BX, 1490/1550nm, LC Simplex, SMF (80km)
Product Overview
The Cisco Compatible GLC-BX-U-1490D-80 and GLC-BX-D-1550D-80 BiDi SFP Transceivers are carrier-grade 1Gbps single-fiber optical modules engineered for ultra-long-distance transmission up to 80 kilometers over single-mode fiber (SMF). Leveraging Wavelength Division Multiplexing (WDM) technology, they operate on 1490nm and 1550nm wavelengths, enabling full-duplex communication over a single fiber strand.
Designed for backbone, metro core, and long-haul access networks, this wavelength combination provides low attenuation and high optical budget, ensuring stable performance over extended distances.
Fully compatible with Cisco platforms, these modules deliver a reliable, scalable, and cost-effective alternative to OEM optics for long-distance deployments.
Wavelength Configuration & Pairing
✔ Correct Pairing:
1490/1550 ↔ 1550/1490 → Full-duplex over single fiber
Key Features
- Supports 1Gbps data rate (1000BASE-BX)
- Single-fiber (BiDi) transmission via WDM technology
- TX/RX wavelengths: 1490nm / 1550nm
- Up to 80km transmission over SMF
- Hot-pluggable SFP form factor
- Fully compatible with Cisco SFP ports
- Reduces fiber usage by 50%
- Optimized for ultra-long-distance transmission
- High optical budget design
- MSA compliant and fully tested
Technical Specifications
General Parameters
- Transmission Distance: Up to 80km
- Fiber Type: Single-Mode Fiber (SMF)
Optical Characteristics
- Transmitter Type: DFB Laser
- Receiver Type: APD Photodiode
- RX Sensitivity: ≤ -28 dBm
Electrical & Environmental
- Power Consumption: ≤ 1.5W
- Operating Temperature: 0°C to 70°C (Industrial options available)
- Storage Temperature: -40°C to 85°C
Compliance
- IEEE 802.3ah (1000BASE-BX)
Why 1490/1550nm for 80km?
For ultra-long-distance transmission, this wavelength combination provides:
- Lower fiber attenuation (especially at 1550nm)
- Higher optical budget for extended reach
- Better signal stability over long spans
This makes it ideal for 80km applications where standard wavelengths are insufficient.
Applications
- Telecom backbone networks
- Metro core and aggregation layers
- Long-distance enterprise interconnect
- ISP and carrier-grade deployments
- Fiber-limited long-haul environments
Pairing Note (Critical)
BiDi modules must be used in complementary pairs:
✔ 1490/1550 ↔ 1550/1490 → ✅ Works
❌ Same wavelength modules → ❌ No link
Why Choose This Product
The Cisco-compatible GLC-BX-U-1490D-80 / GLC-BX-D-1550D-80 modules are designed for maximum reach and reliability. They offer:
- Ultra-long-distance transmission up to 80km
- High optical performance with low attenuation wavelengths
- Reduced fiber infrastructure cost (single fiber)
- Carrier-grade stability for critical networks
They are ideal for deployments where distance, reliability, and efficiency are top priorities.
When to Choose This Module
Choose this 80km BiDi series if:
✔ Distance requirement is up to 80km
✔ Deploying in backbone or metro core networks
✔ Fiber resources are limited
✔ Need high optical budget and stability
Choose 40km modules if:
✔ Distance is shorter
✔ Lower cost and power consumption are preferred
Cisco compatible GLC-BX-U-1490D-80, GLC-BX-D-1550D-80, 1G BiDi SFP 80km, 1490/1550 SFP, 1000BASE-BX long distance, single fiber SFP Cisco
