The DIGISOL DG-SA1136-BDR and DIGISOL DG-SA1136-BDT are long-range 1.25Gbps Bi-Directional (BiDi) SFP optical transceivers designed for single-fiber communication over very long distances up to 80 km.
Overview
These modules are used for:
- Gigabit Ethernet fiber links,
- enterprise backbone connectivity,
- ISP infrastructure,
- surveillance fiber networks,
- industrial communication systems.
They support:
- single-mode fiber (SMF),
- single fiber operation,
- and long-distance optical transmission.
Key Features
1.25Gbps Data Rate
Supports high-speed optical communication up to:
- 1.25 Gbps
Suitable for:
- Gigabit Ethernet,
- Fiber Channel applications.
Long-Distance Transmission
Supports:
- up to 80 km
- over 9/125µm single-mode fiber
This makes them ideal for:
- inter-building links,
- campus networks,
- metro fiber deployments,
- ISP backhaul networks.
Bi-Directional (BiDi) Technology
These modules transmit and receive over a single fiber strand using different wavelengths.
Benefits:
- reduces fiber usage,
- lowers infrastructure costs,
- simplifies upgrades where limited fibers exist.
Hot Pluggable Design
Can be inserted or removed while equipment remains operational.
Digital Diagnostic Monitoring (DDM/DDMI)
Supports monitoring of:
- optical transmit power,
- receive power,
- module temperature,
- voltage,
- laser bias current.
Useful for:
- proactive network maintenance,
- troubleshooting,
- link monitoring.
Optical Components
DFB Laser Transmitter
Uses a Distributed Feedback (DFB) laser for:
- stable long-distance transmission,
- high optical performance,
- better signal quality over extended distances.
PIN Photo Detector
Provides efficient optical signal reception.
Connector Type
- LC/UPC optical connector
Compliance
- RoHS compliant
- Lead-free design
- Industry-standard SFP form factor
How the Pair Works
These modules must be used together:
| Module | Purpose |
|---|---|
| DG-SA1136-BDT | One wavelength pair |
| DG-SA1136-BDR | Opposite wavelength pair |
One side of the link uses BDT, the other uses BDR.
Best Applications
- ISP fiber networks
- Telecom backbone
- Enterprise campus fiber
- Long-distance CCTV systems
- Industrial networking
- Smart city infrastructure
Compatible Devices
Generally compatible with SFP-enabled equipment from:
- DIGISOL
- Cisco
- MikroTik
- Ubiquiti
- Juniper
- TP-Link
Main Advantage
The biggest advantage of these modules is:
- 80 km long-range transmission over a single fiber strand, making them highly efficient and cost-effective for large-scale fiber deployments.
