Quick Start
D
ESCRIPTION
QSFP28 SR4 transceivers are designed for use in 100 Gbps
(4 x 25 Gbps) optical links over multimode fiber. The QSFP28
SR4 integrates a four channel VCSEL array on the transmit and a
four channel PIN photodiode array on the receive. Each channel
can operate at 25.78 Gbps up to 100 m over OM4 Multi-mode
fiber. They are compliant with the QSFP28 MSA, IEEE P802.3bm
100GBASE- SR4.
I
NSTALLATION
To install the QSFP28 SR4 into an appropriate module, complete
the following steps:
1. Inspect the QSFP28 SR4. If damaged, file a claim with the
carrier and then contact ADTRAN Customer Support.
2. Do not remove the protective end cap from the QSFP until
you are ready to connect the fiber optic cable.
3. Insert the QSFP28 SR4 into the QSFP cage on the module.
Ensure the manufacturer's label on the QSFP is facing
upward for correct installation.
4. Slide the QSFP28 SR4 all the way into the receptacle until
there is an audible "click."
f
CAUTION!
Due to compliance certification requirements, use only QSFPs
supplied by ADTRAN. ADTRAN cannot certify system integrity
with other QSFPs.
w
NOTICE
The latch on the QSFP is used to remove the QSFP from the
cage on the circuit card.
O
S
PERATIONAL
PECIFICATIONS
General
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Module type: QSFP28
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Fiber/Copper: Fiber
♦
Multi Mode
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Single-fiber
♦
Direction: BIDI
■
Lanes/Channels: 4 Transmit and 4 Receive
■
Signal Data Rate: 25.78 Gbps
ADTRAN Pluggable Optics
QSFP
QSFP28 100G SR4
■
Optical Connector: MPO Connector
■
Applications: 100 GBASE-SR4 Ethernet
■
Distance: 0.1 km over OM4 Fiber
■
Digital Diagnostic Monitoring: SFF8636 Compliant
Optical
Transmitter
■
Laser Diode Type: VCSEL Array (4 channels)
■
Tx Central Wavelength: 850 nm
■
Tx Power: –8.4 dBm to +2.4 dBm
■
Tx Output Optical Power: –5.0 dBm to +2.4 dBm at each lane
■
Tx Spectral Width: 0.65 nm Max (RMS)
■
Extinction Ratio: 2 dB min
■
Optical Rise time (tr): 40 ps (20% - 80%)
■
Optical Fall time (tf) :40 ps (20% - 80%)
Receiver
■
Rx Type: PIN Array
■
Rx Central Wavelength: 850 nm
■
Rx Power: +2.4 dBm to –7.2 dBm
■
Receive Over load: +2.4 dBm at each lane
■
Receive Sensitivity: –7.2 dBm at each lane
Environmental
■
Controlled Protected Environment (Inside)
♦
♦
♦
Operational temperature range: –5°C to +50°C
Storage temperature range: –40°C to +85 °C
Relative humidity 5 to 85%
October 2018
61445510F1C-13B
P/N:1445510F1C
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