Bi-Directional SFP Transceiver - 1.25Gbps

This bi-directional small form factor pluggable (SFP) transceiver enables bi-directional communication through a single optical fiber. It complies with the Small Form Factor Pluggable Multi-Sourcing Agreement (MSA), and complies with Gigabit Ethernet as specified in IEEE STD 802.3 and Fibre Channel as defined in FC-PI-2 Rev. 10.0. The transceiver is RoHS compliant and lead-free.

Features:

• Single LC receptacle optical interface
• Hot pluggable
• 1310nm FP laser transmitter (T13R15) or 1550nm DFB laser transmitter (T15R13)
• Up to 20km transmission over 9/125 single mode fiber
• Metal enclosure for lower EMI
• Single 3.3V power supply
• Low power consumption <600mW
• 0 to 70?C operating temperature range
• RoHS Compliant

Applications:

• 1.25Gb/s 1000Base-LX Ethernet
• Fiber Channel Links
• SONET/SDH

Ordering Information:

SFP-125-BD-a-b-c
a: Tx and Rx wavelengths, a=T13R15 for 1310nm Tx and 1550nm Rx; a=T15R13 for 1550nm Tx and 1310nm Rx.
b: reach distance of the bi-directional SFP; b=10 for 10km; b=20 for 20km; etc.
c: option for DDM; c=N without DDM; c=D with DDM (Digital Diagnostics Monitoring).

Example: SFP-125-BD-T15R13-10-N

Specifications:

Absolute Maximum Ratings

Specifications

Electrical Characteristics (Top=25?C, Vcc=3.3V)

Notes:
1. Non condensing.
2. AC coupled.
3. Into 100 ohm differential termination.
4. 20 ? 80 %
5. LOS is LVTTL. Logic 0 indicates normal operation; logic 1 indicates no signal detected.
6. Measured with DJ-free data input signal. In actual application, output DJ will be the sum of input DJ and ΔDJ.

Optical Characteristics (Top=25?C, Vcc=3.3V)

Notes:
1. Class 1 Laser Safety.
2. Also specified to meet curves in FC-PI-2 Rev. 10.0 Figure 18, which allow trade-off between wavelength, spectral width and OMA.
3. Equivalent extinction ratio specification for Fibre Channel. Allows smaller ER at higher average power.
4. Unfiltered, 20-80%. Complies with IEEE 802.3 (Gig. E) and FC 1x eye masks when filtered.
5. Measured with DJ-free data input signal .In actual application, output DJ will be the sum of input DJ and ΔDJ.
6. Measured with conformance signals defined in FC-PI-2 Rev. 10.0 specifications. 7. Measured with PRBS 2^7-1 at 10^-12 BER .

General Specifications

Notes:
1. Gigabit Ethernet and 1x Fibre Channel compliant.
2. Tested with a PRBS 2^7-1 data pattern.
3. Dispersion limited per FC-PI-2 Rev. 10
4. Attenuation of 0.55 dB/km is used for the link length calculations. Please refer to the Optical Specifications in Table IV to calculate a more accurate link budget based on specific conditions in your application.

Package Outline (mm)

1.25Gb/s bidi or bi-directional SFP transceiver, small form factor pluggable, single LC receptacle interface, 1310nm FP Tx or 1550nm DFB Tx, 10km or 20km reach over single mode fiber