Product Information
The TP-Link TL-SM321A-2 and TL-SM321B-2 are designed to work together to provide on-site gigabit fiber communication over distances of up to 2km (2,000m). Using a single-mode fiber, these modules establish a full-duplex gigabit connection between your switches, storage devices, and servers.
The TL-SM321A-2 adheres to the Small Form Pluggable Multi-Source Agreement (SFP-MSA) and functions as a Wavelength Division Multiplexing (WDM) Bi-Directional optical transceiver. It features an integrated LC Bi-Directional optical interface connector and supports a data link distance of up to 2km with 9/125 µm Single-Mode Fiber (SMF). Additionally, the TL-SM321A-2 includes Digital Diagnostic Monitoring (DDM), compatible with SFF-8472, which enables real-time monitoring of the transceiver’s parameters such as current, optical power levels, and operating temperature.
The TP-Link TL-SM321A-2 is ideal for short to medium distance fiber network applications, offering a reliable and high-speed gigabit fiber connection for switches, routers, servers, and other network devices.
Product Features- Designed for on-site gigabit fiber communication
- Up to 2km transmission distance with 9/125 µm SMF (Single-Mode Fiber)
- Bidirectional WDM communication on a single fiber
- Compatible with Small Form Pluggable Multi-Source Agreement (SFP-MSA)
- Supports Digital Diagnostic Monitoring (DDM)
- Hot-swappable module design
- Works with TL-SM321B-2 as a pair
- SFP Module TL-SM321A-2
- Installation Guide
Specifications
Specifications TL-SM321A-2
| HARDWARE FEATURES | |
| Weight | 0.13 lbs |
| Dimensions (L x W x H) | 2.16 x 0.59 x 0.51 inches |
| DDM | Yes |
| SFP-MSA | Yes |
| Hot Swappable | Yes |
| MEDIA CONVERTER & MODULE | |
| Standards and Protocols | IEEE 802.3z, TCP/IP |
| Wave Length | TX: 1550 nm RX: 1310 nm |
| Power Supply | 3.3 V |
| Safety & Emission | FCC, CE |
| Cabel | Single-Mode Fiber |
| Fiber Type | 9/125 μm Single-Mode |
| Max. Cable Length | 2 KM |
| Data Rate | 1.25 Gbps |
| Port Type | LC Simplex |
| Environment | |
| Operating Temperature | 0–70 °C (32–158 °F) |
| Storage Temperature | -40–85 °C ( -40–185 °F) |
| Operating Humidity | 10–90% RH, Non-Condensing |
| Storage Humidity | 5–90% RH, Non-Condensing |