Chapter 4
Optical Cards
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SFP temperature ranges are:
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4.21.3 XFP Description
The 10-Gbps 1310-nm and 1550-nm XFP transceivers are integrated fiber optic transceivers that provide
high-speed serial links at the following signaling rates: 9.95 Gbps, 10.31 Gbps, and 10.51 Gbps. The
XFP integrates the receiver and transmit path. The transmit side recovers and retimes the 10-Gbps serial
data and passes it to a laser driver. The laser driver biases and modulates a 1310-nm or 1550-nm
distributed feedback (DFB) laser, enabling data transmission over single-mode fiber (SMF) through an
LC connector. The receive side recovers and retimes the 10-Gbps optical data stream from a
positive-intrinsic-negative (PIN) photodetector, transimpedance amplifier and passes it to an output
driver.
The XFP module uses the bail clasp latching mechanism, shown unlatched in
Figure
Figure 4-27
Figure 4-28
XFP dimensions are:
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78-18106-01
Height 0.03 in. (8.5 mm)
Width 0.53 in. (13.4 mm)
Depth 2.22 in. (56.5 mm)
COM—Commercial operating temperature range: 23 to 158 degrees Fahrenheit (–5 to 70 degrees
Celsius)
EXT—Extended operating temperature range: 23 to185 degrees Fahrenheit (–5to 85 degrees
Celsius)
IND—Industrial operating temperature range: –40 to 185 degrees Fahrenheit (–40 to 85 degrees
Celsius)
4-28. See the label on the XFP for technology type and model.
Bail Clasp XFP (Unlatched)
Bail Clasp XFP (Latched)
Height 0.33 in. (8.5 mm)
4.21.3 XFP Description
Figure 4-27
Cisco ONS 15454 Reference Manual, R8.5
and latched in
4-55
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