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Número de pieza IBM42G12SNNAA30
Descripción (IBM42x1xxNNAA30) Gigabit Ethernet / Fiber Channel Small Form Factor PTH Transceiver
Fabricantes IBM Microelectronics 
Logotipo IBM Microelectronics Logotipo



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IBM42G12SNNAA30 IBM42G10SNNAA30 IBM42F12SNNAA30 IBM42F10SNNAA30
IBM42G12LNNAA30 IBM42G10LNNAA30 IBM42F12LNNAA30 IBM42F10LNNAA30
Gigabit Ethernet/Fibre Channel Small Form Factor PTH Transceiver
Features
• International Class 1 laser safety certified
• 1.0625Gb/s or 1.25Gb/s data rates
• (ANSI) Fibre Channel compliant [1]
• (IEEE 802.3) Gigabit Ethernet compliant [3]
• Short wavelength (SW) (distance 550m)
• Long wavelength (LW) (distance 10,000m)
• Gigabit electrical serial interface
• Serial electrical light conversion
• LVTTL Signal-Detect Output
• AC coupling of PECL signals
• Single +3.3V Power Supply
• Withstand normal wave solder and aqueous
spray cleaning
• UL & CSA approved
• Low bit error rate (< 10-12)
• High reliability: AFR < 0.01%/khr @ 50 C
Applications
• Gigabit Fibre Channel
• Gigabit Ethernet
• Client/Server environments
• Distributed multi-processing
• Fault tolerant applications
• Visualization, real-time video, collaboration
• Channel extenders, data storage, archiving
• Data acquisition
Description
The 1.0625/1.25Gb/s Small Form Factor PTH
Transceiver (SFF-PTH-1063/1250-SW/LW-
2X5/2X6) is an integrated fiber optic transceiver that
provides a high-speed serial link at a signaling rate
up to 1.25Gb/s. The SFF-PTH-1063-SW/LW-
2X5/2X6 conforms to the American National Stan-
dards Institute’s (ANSI) Fibre Channel, FC-PI speci-
fication for short and long wavelength operation
(100-M5-SN-I,100-M6-SN-I, and 100-SM-LC-L).
The SFF-PTH-1250-SW-2X5/2X6 conforms to IEEE
802.3z 1000Base-SX standard [3], and the SFF-
PTH-1250-LW-2X5/2X6 conforms to IEEE 802.3z
1000Base-LX standard [3].
The SFF-PTH-1063/1250-SW/LW-2X5/2X6 is ide-
ally suited for Gigabit Ethernet, and Fibre Channel
applications which include point to point links as well
as Fibre Channel Arbitrated Loop (FC-AL). It can
also be used for other serial applications where high
data rates are required. This specification applies to
a pin through hole (PTH) module which has a 2 by 5
or a 2 by 6 electrical connector pin configuration.
The SFF-PTH-1063/1250-SW-2X5/2X6 uses a short
wavelength (850nm) VCSEL (Vertical Cavity Sur-
face Emitting Laser) source. This enables low cost
data transmission over optical fibers at distances up
to 500m at 1.0625Gb/s and 550m at 1.25Gb/s. A
50/125µm multimode optical fiber, terminated with
an industry standard LC connector, is the preferred
medium. (A 62.5/125µm multimode fiber can be
substituted with shorter maximum link distances.)
The SFF-PTH-1063/1250-LW-2X5/2X6 uses a long
wavelength (1310nm) edge-emitting laser. This
enables data transmission at distances up to
10,000m on a single mode (9/125µm) optical fiber.
Encoded (8B/10B) [4], [5], gigabit serial differential
PECL signals traverse a PTH connector interfacing
the SFF-PTH-1063/1250-SW/LW-2X5/2X6 to the
host card. The incoming serial data modulates the
laser and is sent out over the outgoing fiber of a
duplex cable.
Incoming modulated light is detected by a photore-
ceiver mounted in the LC receptacle. The optical
signal is converted to an electrical signal, amplified
and delivered to the host card. This module is
designed to work with industry standard “10b” Seri-
alizer/Deserializer modules.
The SFF-PTH-1063/1250-SW/LW-2X5/2X6 is a
Class 1 laser safe product. The optical power levels
under normal operation are at eye safe levels, and
optical fiber can be connected and disconnected
without shutting off the laser transmitter.
08/15/00
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IBM42G12SNNAA30 IBM42G10SNNAA30 IBM42F12SNNAA30 IBM42F10SNNAA30
IBM42G12LNNAA30 IBM42G10LNNAA30 IBM42F12LNNAA30 IBM42F10LNNAA30
Gigabit Ethernet/Fibre Channel Small Form Factor PTH Transceiver
Output Signal Definitions
Levels for the signals described in this section are listed in Receive Signal Interface on page 8 and Control
Electrical Interface on page 9.
Rx_DAT
The incoming optical signal is converted and repowered as a differential PECL serial data stream. The
Receive Signal Interface table on page 8 gives the voltage levels and timing characteristics for the Rx_DAT
signals.
Rx_SD
The Receive Signal Detect line is high (a logical one) when the incoming modulated light intensity is sufficient
for reliable operation. This is the state for normal operation. The line is low (a logical zero) when the incoming
modulated light intensity is below that required to guarantee the correct operation of the link. Normally, this
condition only occurs when either the link is unplugged or the companion transceiver is turned off. This signal
is normally used by the system for diagnostic purposes.
This signal has a push-pull output driver.
Tx_Fault (Only available on 2 X 6)
Upon sensing an improper power level in the laser driver, the SFF sets this signal high and turns off the laser.
The Tx_Fault signal can be reset with the Tx_Disable line.
The laser is turned off within 100µs as shown in the Transmitter Fault Detection timing diagram below.
This signal has an open drain TTL driver. A pull up resistor is required on the host side of the SFF connector.
The recommended value for this resistor is 10k.
Receive Signal Detection
Optical Signal
Signal Removed
Rx_SD
t_SD_off
<100µs
t_SD_on
<100µs
Transmitter Fault Detection
transmitter
safety fault
Tx_Fault
Optical
Power
t_fault
Tx_Fault option is only available on 2 X 6 <100µs
08/15/00
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IBM42G12SNNAA30 IBM42G10SNNAA30 IBM42F12SNNAA30 IBM42F10SNNAA30
IBM42G12LNNAA30 IBM42G10LNNAA30 IBM42F12LNNAA30 IBM42F10LNNAA30
Gigabit Ethernet/Fibre Channel Small Form Factor PTH Transceiver
Transmitter Specifications
Symbol
λC
∆λ
PT
Trise/Tfall
OMA
RIN12
DJ
CPR
Parameter
Spectral Center Wavelength
Spectral Width
Launched Optical Power
Optical Rise/Fall Time
Optical Extinction Ratio (1.25Gb/s)
Optical Modulation Amplitude (1.0625Gb/s)
Relative Intensity Noise
Eye Opening
Deterministic Jitter (1.0625Gb/s)
Coupled Power Ratio
Min
830
-9.5
9
156
0.57
9
Typical
Max.
860
0.85
-4.0
260
-117
0.20
Unit
nm
nm (rms)
dBm (avg)
ps
dB
µW (pk-pk)
dB/Hz
UI
UI
dB
Notes
1
2
3
4
5
6
7
8
1. Launched optical power is measured at the end of a two meter section of a 50/125µm fiber (N.A.=0.20). The maximum and mini-
mum of the allowed range of average transmitter power coupled into the fiber are worst case values to account for manufacturing
variances, drift due to temperature variations, and aging effects. The minimum launched optical power specified assumes an infi-
nite extinction ratio at the minimum specified OMA.
2. Optical transition time is the time interval required for the rising or falling edge of an optical pulse to transition between the 20% and
80% amplitudes relative to the logical 1 and 0 levels. This is measured through a 4th order Bessel -Thompson filter with 0.75 * Data
Rate 3-dB bandwidth and corrected to the full bandwidth value.
3. Extinction Ratio is the ratio of the average optical power (in dB) in a logical level one to the average optical power in a logical level
zero measured under fully modulated conditions with a pattern of five 1s followed by five 0s, in the presence of worst case reflec-
tions.
4. Optical Modulation Amplitude (OMA) is defined as the difference in optical power between a logical level one and a logical level
zero. The OMA is defined in terms of average optical power (PAVG in µW) and extinction ratio (ER) as given by OMA=2PAVG((ER-
1)/(ER+1)). In this expression, the extinction ratio, defined as the ratio of the average optical power (in µW) in a logic level one to
the average optical power in a logic level zero measured under fully modulated conditions in the presence of worst case reflections,
must be the absolute (unitless linear) ratio and not expressed in dB. At 1.0625Gb/s, the specified OMA is equivalent to an average
power of -9 dBm at an extinction ratio of 9 dB.
5. RIN12 is the laser noise, integrated over a specified bandwidth, measured relative to average optical power with 12dB return loss.
See Ref[1], Annex A.
6. Eye opening is the portion of the bit time where the bit error rate (BER) 10-12.
7. Deterministic Jitter is defined in Ref [1][2].
8. Coupled Power Ratio is the ratio of the average power coupled into a multimode fiber to the average power coupled into a single
mode fiber. This measurement is defined in EIA/TIA-526-14A.
08/15/00
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