H3C S6520X-SI Series, Руководство по установке, Страница: 78 / 90

70
Figure 70 SFP+ cable
(1) Connector (2) Pull latch
IMPORTANT:
The S6520X-18C-SI and S6520X-26C-SI switches must use PSR150-A1 or PSR150-D1 power
modules for power supply when the switches are installed with SFP-XG-LH80-SM1550 transceiver
modules.
NOTE:
•
As a best practice, use H3C SFP/SFP+ transceiver modules and cables for the SFP+ ports on
the switch.
•
The H3C SFP/SFP+ transceiver modules and cables available for the SFP+ ports on the switch
are subject to change over time. For the most recent list of SFP/SFP+ transceiver modules and
cables available for the SFP+ ports, contact your H3C Support or marketing staff.
•
For more information about H3C SFP/SFP+ transceiver modules and cables, see
H3C
Transceiver Modules User Guide
.
SFP28 port
The LSWM2ZSP2PM interface card provides the fixed SFP28 ports. To connect peer SFP28 ports
over a long distance, use SFP28 transceiver modules and fibers. To connect peer SFP28 ports over
a short distance, use SFP28 cables. You can install 25G SFP28 transceiver modules in
Table 24 and
25GE SFP28 cables in Table 25 .
Table 24 25G SFP28 transceiver modules available for the SFP28 ports
25G SFP28
transceiver
module Central
wavelength
(nm)
Connector
Cable/Fiber
type and
diameter (µm) Modal
bandwidth
(MHz × km) Max
transmission
distance
SFP-25G-SR-
MM850
850 LC
Multi-mode,
50/125
2000
•
FEC
negotiation
disabled
—30
m (98.43 ft)
•
FEC
negotiation
enabled
—70
m (229.66 ft)
4700
•
FEC
1
2