
IBM42F21SNNAA10
IBM42F21LNNAA10
2x / 1x Fibre Channel Small Form Factor PTH Transceiver
IBM42G21SNNAA10
IBM42G21LNNAA10
Page 2 of 23
08/15/00
Laser Safety Compliance Requirements
The SFF-PTH-2125-SW/LW-2X5/2X6 is designed
and certified as a Class 1 laser product. If the power
supply voltage exceeds 4.0 volts, the transceiver
may no longer remain a Class 1 product. The sys-
tem using the SFF-PTH-2125-SW/LW-2X5/2X6
must provide power supply over voltage protection
that guarantees the supply does not exceed 4.0
volts under all fault conditions.
Caution:
Operating the power supply above 4.0V or
otherwise operating the SFF-PTH-2125-SW/LW-
2X5/2X6 in a manner inconsistent with its design
and function may result in hazardous radiation expo-
sure, and may be considered an act of modifying or
new manufacturing of a laser product under US reg-
ulations contained in 21 CFR(J) or CENELEC regu-
lations contained in EN 60825. The person(s)
performing such an act is required by law to recertify
and reidentify the product in accordance with the
provisions of 21 CFR(J) for distribution within the
United States, and in accordance with provisions of
CENELEC EN 60825 (or successive regulations) for
distribution within the CENELEC countries or coun-
tries using the IEC 825 standard.
ESD Notice
It is advised that normal static precautions be taken
in the handling and assembly of the SFF-PTH-2125-
SW/LW-2X5/2X6 to prevent damage and/or degra-
dation which may be introduced by electrostatic dis-
charge.
Package Outline
Pin Assignments
Pin Name
Type
Pin #
Rx Ground
Ground
1
Rx Power
Power
2
Rx_SD
Status Out
3
Rx_DAT -
Signal Out
4
Rx_DAT +
Signal Out
5
Tx Power
Power
6
Tx Ground
Ground
7
Tx_Disable
Control In
8
Tx_DAT +
Signal In
9
Tx_DAT -
Signal In
10
N/C
Not Connected
A
Tx_Fault (2X6 Only)
Status Out
B
Ordering Information
Product Descriptor
Part Number
Maximum Signaling Rate
Wavelength
SFF-PTH-2125-SW-2X5
IBM42F21SNNAA10
2.125Gb/s
850nm
SFF-PTH-2125-LW-2X5
IBM42F21LNNAA10
2.125Gb/s
1310nm
SFF-PTH-2125-SW-2X6
IBM42G21SNNAA10
2.125Gb/s
850nm
SFF-PTH-2125-LW-2X6
IBM42G21LNNAA10
2.125Gb/s
1310nm