HPE SFP28 User Manual

3
Single-mode fiber type
Wavelength (nm)
Features
Applications
fiber)
with a central
wavelength of 1310
nm or 1550 nm.
G.655-compliant fiber
(non-zero dispersion
shifted fiber)
1530 to 1565
Near-zero dispersion
around 1550 nm.
1550-nm
wavelength-division
multiplexing (WDM)
transmissions.
Fiber diameter
Fiber diameter is expressed as core diameter/cladding diameter, in μm. For example, 9/125 μm
represents a fiber core diameter of 9 μm and a fiber cladding diameter of 125 μm.
As a best practice, use the following fiber diameters for the HPE Comware-based devices:
•
G.652 standard single-mode fiber—9/125 μm.
•
G.655 single-mode fiber—9/125 μm.
•
G.651 standard multimode fiber—50/125 μm.
LC connector
CAUTION:
Cover the connector with a dust cap when it is not connected to optical fibers.
Connectors connect transceiver modules to the transmission media.
Figure 1 LC connector
Optical parameters
The following are the major optical parameters:
•
Transmit power—Transmit power is the power at which the transmitter of an optical
transceiver module transmits optical signals, in dBm.
•
Receive power—Receive power is the power at which the receiver of a optical transceiver
module receives optical signals, in dBm.
The transceiver module specifications in this guide provide the average transmit and receive power
ranges.

HPE SFP28 Specifications

General

Form Factor	SFP28
Data Rate	25 Gbps
Connector Type	LC
Wavelength	850nm, 1310nm
Cable Type	Multimode Fiber, Single-mode Fiber
Max Distance	100 m (SR), 10 km (LR), 40 km (ER)
Operating Temperature	0°C to 70°C (32°F to 158°F)
Compatibility	HPE switches and routers with SFP28 ports