Features
- Standard Compliance
- Compliant with IEEE 802.3z GigabitStandard
- Self-contained in Standard Small Form Pluggable (SFP) Package
- Simplex LC Connector
- Interoperable with D-Link Switches
- Long-Distance Fiber Application
- Maximum 10 km Fiber Cable Distance (DEM-330T/330R)
- Maximum 40 km Fiber Cable Distance (DEM-331T/331R)
- Use Single-mode Fiber Cable
- Use Single Fiber Strand for Transmission/Reception
- Optimal Bidirectional Operation
- Gigabit Operation
- Bidirectional Operation Using Separate Transmit and Receive Wavelengths
- Versatile, Sturdy Devices
- Single 3.3V Power Supply
- Hot Swappable
- Durable Metal Enclosure
Description
The DEM-331T Bidirectional Gigabit SFP Fiber Transceivers are external transceivers designed for insertion in SFP (Small Form-Factor Pluggable) slots of network devices for transmission and reception of data signals on the fiber cables. These transceivers provide the Gigabit operation and physical compactness to deliver the speed, reliable long-distance data transfer, and deployment flexibility that today’s fiber networks require.
Ideal for Long Distance Application:
The DEM-331T transceivers can be used to connect together switches, servers and fiber modules on a campus or metropolitan area network (MAN). Providing up to 10 km or 40 km of fiber cable distance, these highly integrated transceivers offer low jitter performance for extended optical link support without any degradation in performance.
Reliable Transmission:
The DEM-331T transceivers combine transmitting and receiving signals onto one fiber strand using two wavelengths. These transceivers are used in pair. At one end, one transceiver uses one wavelength to transmit and a second wavelength to receive. At the other end, the other transceiver flips that relationship.
Standard Compliance:
The DEM-331T transceivers use standard simplex LC connectors for fiber cable connection. They conform to industry standards and are interoperable with D-Link Gigabit switches. Hotswap capability allows network administrators to plug or unplug them from the SFP slots without having to turn off the power of the connected device.
Durable:
The DEM-331T transceivers are packed in a Small Form Pluggable (SFP) metal housing to increase durability.
Specifications
| Technical Specifications |
| Standard |
IEEE802.3z 1000BASE-BX-D |
| Wavelength Tx: |
Tx: 1550nm, Rx: 1310 nm |
| Connector |
Simplex LC |
| Fiber Type |
9/125um Single-mode Fiber |
| Maximum Fiber Cable Length |
40 km |
| Transmit Power Range |
2 to -3 dBm |
| Receive Power Range |
-1 to -21 dBm |
| Sensitivity |
-23 dBm |
| Min. Power Budget |
20 dB |
| Max. Power Budget |
25 dB |
| Power Support |
3.3 V |
| Supply Current |
300 mA |
| Heat Generated |
2.14 kJ/h |
| MTBF |
420,660 hours |
| Dimensions |
13.4 mm (W) x 55.5 mm (D) x 11.28 mm (H) |
| Weight |
20 grams |
| Emission (EMI) Certification |
FCC Class B, ICES-003 Class B, CE Class B, VCCI Class B |
| Safety Certification |
TUV, UL, FDA |
| RoHS |
Compliant |