S281301025xD –SFP28 Dual Fibre
Datasheet
S281301025xD_RevA
S281301025xD –SFP28 Dual Fibre
1310nm / 10km / 25GBASE-LR
For your product safety, please read the following information carefully before any manipulation of the transceiver:
ESD
This transceiver is specified as ESD threshold 1kV for SFI pins and 2kV for all others electrical input pins, tested per MIL-STD-883G, Method 3015.4
/JESD22-A114-A (HBM). However, normal ESD precautions are still required during the handling of this module.
LASER SAFETY
This is a Class1 Laser Product according to IEC 60825-1:2007. This product complies with 21 CFR 1040.10 and 1040.11 except for deviations
pursuant to Laser Notice No. 50, dated (June 24, 2007).
The optical ports of the module need to be terminated with an optical connector or with a dust plug in order to avoid contamination.
1.
Overview
S281301025xD is a high performance transceiver module for up to 25 Gbps data links over a single mode fibre pair. The
maximum reach is 10km. The transmitter is a 1310nm Distributed Feedback (DFB) laser, the receiver is a PIN
photodiode.
This transceiver module is compliant with the Small Form-factor Pluggable (SFP+) and hot pluggable. Always contact
Skylane Optics® commercial agents for compatibility with different equipment platforms.
2.
Features
• SFP+ Multi-Source Agreement compliant (SFF-8431)
• Hot pluggable SFP+ footprint
• Serial ID functionality supported according to (SFF-8472)
• Class 1 laser safety standard IEC 60825 compliant
• Dual LC Connector
• 1310nm DFB Transmitter
• PIN Receiver
• Up to 10km Point-to-Point Transmission on Single Mode Fibre
• Operating temperature range 0°C to 70°C or -40°C to 85°C
• Power Dissipation <1.5W
Figure 1. SFP28 Dual Fibre
(non-binding illustration)
• Single +3.3V Power Supply
3.
Applications
• 25× Gigabit Ethernet
• 32× Fiber Channel
• 16× Fiber Channel
• 8× Fiber Channel
4.
Optical Interface
P/N
Wavelength
Protocol
S281301025xD
1310nm
25GBASE-LR
Optical Output
Stressed Receiver
Optical Receiver
Link Length1,4 [km]
Power1 [dBm] Sensitivity2 (OMA) [dBm] Overload3 [dBm]
-7 to 2
≤ -8.8
2
≤ 10
1. EOL over operating temperature range
2. Measured with conformance test signal at receiver input for BER≤5×10-5
3. The optical input to the receiver should not exceed this value. Transmitters must never be directly connected to receivers before ensuring that proper optical
attenuation is used
4. Cabled optical fibre as per IEEE 802.3-2012
Specification subject to change without notice
1
Datasheet
S281301025xD_RevA
5.
Technical Parameters
5.1. Recommended Operating Conditions
Parameter
Min
Max
Unit
Storage temperature
-40
85
°C
0
70
-40
85
5
85
%
3.465
V
Power Supply Current
450
mA
Power Dissipation
1.5
W
Max
Unit
Operating Case Temperature
Relative Humidity
Power Supply Voltage
3.135
Typ
3.3
Notes
S2813010250D
°C
S2813010252D
Non-Condensing
5.2. Transmitter Optical Specifications
Parameter
Min
Data Rate
Typ
25.78125
Average Output Power
-7
2
Launched OMA
-4
2.2
Launched OMA minus TDP
-5
Centre Wavelength
Transmitter and Dispersion Penalty (TDP)
Extinction Ratio
Gbps
5
dBm
6,7
6,8
dBm
1295
Notes
1325
nm
2.7
dB
6
dB
3.5
5. IEEE 802.3-2012
6. Output power coupled into a 9/125 µm single mode fibre
7. Average launch power (min) is informative and not the principal indicator of signal strength. A transmitter with launch power below this value cannot be compliant;
however, a value above this does not ensure compliance
8. Even if the TDP is <1 dB, the launched OMA must exceed -4dBm
5.3. Receiver Optical Specifications
Parameter
Min
Operating Wavelength
1260
Average Receive Power
-13.3
Typ
Max
Unit
1350
nm
Notes
2
dBm
2.2
dBm
Receiver Sensitivity (OMA)
-11.3
dBm
10
Stressed Receiver Sensitivity (OMA)
-8.8
dBm
11
Receive Power (OMA)
9
9. Average receive power (min) is informative and not the principal indicator of signal strength. A received power below this value cannot be compliant; however, a
value above this does not ensure compliance
10. Measured with 25.78Gbps, BER≤5×10-5, PRBS 231-1
11. Measured with conformance test signal at receiver input for BER≤5×10-5
Specification subject to change without notice
2
Datasheet
S281301025xD_RevA
6.
Electrical Connector
1
2
3
4
5
Towards BEZEL ←
6
7
8
9
10
VeeT
Tx_Fault
Tx_Disable
SDA
SCL
MOD_ABS
RS0
Rx_LOS
RS1
VeeR
VeeT
TDTD+
VeeT
VccT
VccR
VeeR
RD+
RDVeeR
20
19
18
17
16
15
→ Towards ASIC
14
13
12
11
Figure 2. Transceiver Electrical Pad Layout
7.
Module Electrical Pin Definition
Pin
Number
Name
Function
1
VeeT
2
Tx_Fault
Module Transmitter Ground
3
Tx_ Disable
4
SDA
2-Wire Serial Interface Data
5
SCL
2-Wire Serial Interface Clock
6
Mod_ABS
7
RS0
8
Rx_LOS
9
RS1
10
VeeR
Module Receiver Ground
11
VeeR
Module Receiver Ground
Module Transmitter Fault
Transmitter Disable
Module Absent
Rate Select 0
Receiver Loss of Signal
Not Used
12
RD-
Receiver Inverted Data Output
13
RD+
Receiver Non-Inverted Data Output
14
VeeR
Module Receiver Ground
15
VccR
Module Receiver 3.3V Supply
16
VccT
Module Transmitter 3.3V Supply
17
VeeT
Module Transmitter Ground
18
TD+
Transmitter Non-Inverted Data Input
19
TD-
Transmitter Inverted Data Input
20
VeeT
Specification subject to change without notice
Module Transmitter Ground
3
Datasheet
S281301025xD_RevA
8.
EEPROM
SFP+ MSA (SFF-8472)
2 wire address 1010000x
2 wire address 1010001x
0
0
Serial ID Defined by
SFP MSA (96 bytes)
55
95
95
Vendor Specifics
(32 bytes)
127
Reserved
(128 bytes)
255
Alarm and Warning
Thresholds (56 bytes)
Cal Constants
(40 bytes)
Real Time Diagnostic
Interface (24 bytes)
119
Vendor Specifics (8 bytes)
127
User writable EEPROM
(120 bytes)
247
Vendor Specifics (8 bytes)
255
A0h
A2h
Figure 3. SFP28 Memory Map
9.
Ordering Information
Part Number
Description
S2813010250D
SFP28 LR, 1310nm, Tx (DFB), Rx (PIN), maximum distance 10km on SMF,
25x Gigabit Ethernet, dual LC connector, 0°C to 70°C, DDM
S2813010252D
SFP28 LR, 1310nm, Tx (DFB), Rx (PIN), maximum distance 10km on SMF,
25x Gigabit Ethernet, dual LC connector, -40°C to 85°C, DDM
10. Document Revision Information
Revision
Description
A
Initial release
Skylane Optics® supplies a broad range of optical
transceivers. Our engineers work closely with our
customers to find the best solutions for every
application. We are committed to provide high
quality products and services to our customers.
For questions on this product please contact:
support@skylaneoptics.com
Beyond
Quality
Reliable
Alliance
Performing
Smartly
Specification subject to change without notice
4
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