Allied Telesis AT-SP10BD20-13 – TAA 10G BiDi SFP+ 20km 1330nm TX

Product Overview

The Allied Telesis AT-SP10BD20-13 is a TAA-compliant 10G BiDi SFP+ transceiver providing single-fiber 10 Gigabit Ethernet connectivity over single-mode fiber up to 20 kilometers. Using 1330nm for transmit and 1270nm for receive, this Allied Telesis 10G BiDi 20km SFP+ 1330nm transceiver is the complementary unit to the AT-SP10BD20-12 and must be paired with it at the far end to complete a wavelength-matched BiDi link. Ideal for network engineers looking to maximize existing single-mode fiber plant capacity without new cable installation, the AT-SP10BD20-13 is available from Creation Networks at https://creationnetworks.net for federal, enterprise, and service provider deployments.

Product Description

The AT-SP10BD20-13 is a member of the Allied Telesis SP10 Series of 10G SFP+ transceivers, built for long-reach data center interconnect, enterprise WAN extension, and metro campus backbone applications. BiDi (Bidirectional) operation uses a wavelength-division multiplexing (WDM) diplexer to carry transmit traffic at 1330nm and receive traffic at 1270nm over a single fiber strand. This halves the fiber count required compared to conventional dual-fiber SFP+ modules, making it a cost-effective solution for capacity upgrades on existing dark fiber or conduit-limited installations. This module is the remote-end counterpart to the AT-SP10BD20-12 (1270nm TX / 1330nm RX); a working BiDi 10GbE link requires one of each at opposite ends. The module operates over OS1/OS2 standard single-mode fiber up to 20 kilometers and supports a standard operating temperature range suitable for controlled indoor equipment rooms. Power consumption is below 1 Watt, keeping thermal density low in high-port-count chassis. Digital Diagnostics Monitoring (DDM) per SFF-8472 allows the host switch to read real-time optical power levels, temperature, and laser health without specialist test equipment. Full compliance with SFP+ Electrical MSA SFF-8431 and SFF-8472 ensures interoperability with any standards-compliant SFP+ host port. TAA compliance qualifies this transceiver for U.S. government procurement. RoHS compliance confirms environmentally responsible manufacturing.

Key Features

• TAA Compliant — Qualifies for U.S. federal, defense, and government network procurement requirements.
• BiDi Single-Fiber Operation — Transmit at 1330nm, receive at 1270nm over a single fiber strand.
• Complementary Pair to AT-SP10BD20-12 — Must be used with AT-SP10BD20-12 (1270nm TX / 1330nm RX) at the far end.
• 20km Reach — Supports single-mode fiber spans up to 20 kilometers for metro and campus interconnects.
• 10 Gbps Data Rate — Full 10 Gigabit Ethernet throughput (max 10.3 Gbps).
• Low Power Consumption (<1W) — Efficient operation for high-density SFP+ switch deployments.
• Digital Diagnostics Monitoring (DDM) — Real-time link health monitoring from the host management interface.
• SFF-8431 and SFF-8472 MSA Compliant — Interoperable with any standards-compliant SFP+ host device.
• Hot-Swappable — Replace in the field without powering down the host switch or router.
• RoHS Compliant — Manufactured to EU RoHS standards for hazardous substance restrictions.

Typical Applications

• Campus building-to-building 10GbE links using existing single-mode fiber
• Metropolitan area network (MAN) 10G extension up to 20km
• Data center to disaster recovery site replication links
• Fiber capacity doubling without new cable installation
• Enterprise WAN and distribution layer high-bandwidth uplinks
• U.S. government and federal agency 10GbE projects requiring TAA-compliant optics

Technical Specifications

Frequently Asked Questions

Q: What module pairs with the AT-SP10BD20-13 to form a complete BiDi link?

The AT-SP10BD20-13 (1330nm TX / 1270nm RX) must be paired with the AT-SP10BD20-12 (1270nm TX / 1330nm RX) at the opposite end of the fiber. Using two identical wavelength modules at both ends will not produce a working link.

Q: How does BiDi technology double fiber capacity?

BiDi transceivers use an internal WDM diplexer to transmit on one wavelength and receive on a different wavelength simultaneously over a single fiber strand. Two conventional SFP+ modules require two fibers; one pair of BiDi modules requires only one, doubling the effective data capacity of an installed single-mode fiber run.

Q: What fiber type does the AT-SP10BD20-13 require?

The module requires OS1 or OS2 single-mode fiber and supports distances up to 20 kilometers. It is not compatible with multimode fiber.

Q: Is the AT-SP10BD20-13 TAA compliant for U.S. government use?

Yes. This transceiver is fully TAA compliant, qualifying it for U.S. federal government, defense, and agency network infrastructure procurements under the Trade Agreements Act.

Q: Does this module support Digital Diagnostics Monitoring?

Yes. SFF-8472-compliant DDM provides real-time read-back of transmit and receive optical power, temperature, supply voltage, and laser bias current through the host switch management interface.

Q: What is the difference between the AT-SP10BD20-12 and AT-SP10BD20-13?

The only functional difference is the wavelength pair: the -12 transmits at 1270nm and receives at 1330nm, while the -13 transmits at 1330nm and receives at 1270nm. They are physically and electrically identical otherwise. One of each is required at each end of a BiDi fiber link.

Q: Where can I purchase the AT-SP10BD20-13 and its paired module AT-SP10BD20-12?

Both modules are available from Creation Networks at https://creationnetworks.net. Ordering both from Creation Networks ensures correct wavelength pairing and single-vendor support for your BiDi deployment.