Standard Compliance
Compliant with IEEE 802.3z Gigabit Standard
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
DEM-330T/330R & DEM-331T/331R
Bidirectional SFP Gigabit Fiber Transceivers
TheDEM-330T/330RandDEM-331T/331RBidirectionalGigabitSFPFiberTransceiversareexternaltransceivers 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-330T/330R and DEM-331T/331R 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 (DEM-330T/330R) or 40 km (DEM-331T/331R) 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-330T/330R and DEM-331T/331R 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-330T/330R and DEM-331T/331R 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-330T/330R and DEM-331T/331R transceivers are packed in a Small Form Pluggable (SFP) metal housing to increase durability.
TRANSCEIVER
DEM-330T/330R & DEM-331T/331R
Technical Specifications
DEM-330T |
DEM-330R |
DEM-331T |
DEM-331R |
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Standard |
IEEE802.3z 1000BASE-BX-D |
IEEE802.3z 1000BASE-BX-U |
IEEE802.3z 1000BASE-BX-D |
IEEE802.3z 1000BASE-BX-U |
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Wavelength |
Tx: 1550nm, Rx: 1310 nm |
Tx: 1310nm, Rx: 1550 nm |
Tx: 1550nm, Rx: 1310 nm |
Tx: 1310nm, Rx: 1550 nm |
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Connector |
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Simplex LC |
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Fiber Type |
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9/125um Single-mode Fiber |
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Maximum Fiber Cable Length |
10 km |
10 km |
40 km |
40 km |
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Transmit Power Range |
-3 to -9 dBm |
-3 to -9 dBm |
2 to -3 dBm |
2 to -3 dBm |
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Receive Power Range |
-1 to -21 dBm |
-1 to -21 dBm |
-1 to -23 dBm |
-1 to -23 dBm |
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Sensitivity |
-21 dBm |
-21 dBm |
-23 dBm |
-23 dBm |
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Min. Power Budget |
12 dB |
12 dB |
20 dB |
20 dB |
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Max. Power Budget |
18 dB |
18 dB |
25 dB |
25 dB |
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Power Support |
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3.3 V |
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Supply Current |
300 mA |
250 mA |
300 mA |
300 mA |
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Heat Generated |
1.78 kJ/h |
1.78 kJ/h |
2.14 kJ/h |
2.14 kJ/h |
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MTBF |
445,890 hours |
445,890 hours |
420,660 hours |
420,660 hours |
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Dimensions |
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13.4 mm (W) x 55.5 mm (D) x 11.28 mm (H) |
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Weight |
19.8 grams |
19.8 grams |
20 grams |
20 grams |
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Emission (EMI) Certification |
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FCC Class B, ICES-003 Class B, CE Class B, VCCI Class B |
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Safety Certification |
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TUV, UL, FDA |
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RoHS |
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Compliant |
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I
geprufte Sicherheit
D-Link Corporation
No. 289 Xinhu 3rd Road, Neihu, Taipei 114, Taiwan Specifications are subject to change without notice.
D-Link is a registered trademark of D-Link Corporation and its overseas subsidiaries. All other trademarks belong to their respective owners.
©2009 D-Link Corporation. All rights reserved. Release 02 (March 2009)
TRANSCEIVER