Installation Guide
QX-S5500 Series Ethernet Switches
1.3.2 10/100/1000BASE-T auto-sensing Ethernet port
Each QX-S5500 series provides 10/100/1000Base-T Ethernet ports on its front panel.
Table 1-3 describes the specifications of the 10/100/1000Base-T Ethernet ports.
Table 1-3
10/100/1000Base-T Ethernet port specifications
Item
Specification
Connector type
RJ-45
Number of port
QX-S5526P : 24 ports
QX-S5550P : 48 ports
QX-S5526T : 8 ports
Interface standard
10/100/1000 Mbps, half/full duplex
MDI/MDI-X, auto-sensing
Standard
IEEE 802.3 IEEE 802.3u IEEE 802.3ad
IEEE 802.3x IEEE 802.1p IEEE 802.1D
IEEE 802.1Q IEEE 802.1X IEEE 802.1s
IEEE 802.1w IEEE 802.3ab
Transmission medium
Category-5 unshielded twisted pair cable
1.3.3 SFP port
QX-S5900 series have fixed SFP ports. You can plug the SFP transceiver modules in Table
1-4 as needed.
Table 1-4
1000 Mbps SFP transceiver modules available for the SFP ports
Transceiver module
Central
wavelength
Connector
Fiber
Max
transmission
distance
100BASE-FX-SFP
1310 nm
LC
50/125 μm multi
-mode
optical fiber
2 km
1000BASE-SX-SFP
850 nm
LC
50/125 μm multi
-mode
optical fiber
550 m
1000BASE-LX-SFP
1310 nm
9/125 μm single
-mode
optical fiber
40 m
70 m
10 km
1000BASE-ZX-LR-SFP
1550 nm
40 km
1000BASE-ZX-VR-SFP
70 km
1000BASE-BX10-D-SFP
1310 nm
10km
1000BASE-BX10-U-SFP
1490nm
10km
1000BASE-BX40-D-SFP
1310 nm
40 km
1000BASE-BX40-U-SFP
1490nm
40 km
1000BASE-T-SFP
N/A
RJ45
Category-5 twisted pair
100m
NOTE:
To guarantee the functionality of the SFP+ ports, use only NEC SFP transceiver modules.
The SFP transceiver modules available for this switch series are subject to change over time. For the most
up-to-date list of SFP transceiver modules, consult your NEC sales representative or technical support
engineer.
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