Approved Optics Approved SUN X2129A - Manual

X2129A-A
SFP+, 10GBASE-SR 10G Ethernet Module
850mn, 300m, MMF, LC RoHS6
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Approved Optics, Inc. www.ApprovedOptics.com Page 1 of 8
X2129A-A
10Gbase SFP+ Transceiver
Features
 Compliant to SFP+ Electrical MSA SFF-8431
 Compliant to SFP+ Mechanical MSA SFF-8432
 Multi-rate compliance for Ethernet and Fiber Channel
 Transmission distance up to 300m (OM3 fiber)
 Sub watt power consumption: 0.65W (typ.)
 0°C to +70°C case operating temperature range
 Laser Class 1 IEC / CDRH compliant
 RoHS 6/6 compliant
 Compliant with product safety standards
Product Description
The X2129A-A is a multipurpose multi-rate optical transceiver module for transmission at
850nm over multimode fiber. Supporting Ethernet and Fiber Channel standards make it
ideally suited for 10G data communication and storage area network applications.
Its sub watt power consumption and its excellent EMI performance allow system design
with high port density. The small form factor integrates an 850nm vertical cavity surface
emitting laser (VCSEL) in an LC package and a PIN receiver. Approved Optics
Computer Peripheral’s module is lead free, RoHS compliant and is designed and tested
in accordance with industry safety standards.
Functional Description
The Transceivers convert information from electrical to optical format, and back again, at
different data rates depending upon the chosen standard. The transmit path consists of
an AC coupled 100 ohm differentially terminated driver coupled to a highly reliable
850nm VCSEL. The laser output may be disabled by pulling the TX_DISABLE line high.
The laser is also disabled if this line is left floating, as it is pulled high inside the
transceiver. The SFP+ MSA (Multiple Source Agreement) defines two RATE_SELECT
lines, one for the transmitter (pin 9) and one for the receiver (pin 7). Depending upon the
transceiver application, the transmitter RATE_SELECT line can switch between1 GBd
and 10 GBd.
The receiver path consists of a ROSA (receiver optical sub-assembly) for optical
electrical conversion, followed by a limiting amplifier to boost the electrical signal. A
LOSS_OF_SIGNAL (LOS) status line is provided to facilitate easy link detection.
Depending upon the transceiver application, optimum receiver bandwidth may be
configured using the receiver RATE_SELECT pin: for Ethernet applications to switch
between 1 GBd and 10 GBd data rates, and for Fiber Channel applications switch ≤/> 4
GBd data rates.
Not all transceiver versions require RATE_SELECT.