1-20
Table 1-20
USB interface specifications
Item
Specification
Connector type
z
USB A type connector for the HOST USB interface (Active)
z
USB B type connector for the DEV USB interface (Standby)
z
Currently, only active USB interfaces are supported on the S12500.
Interface standard
USB 2.0 (full-speed 12 Mbps, low-speed 1.5 Mbps)
Supported service
External storage media is supported.
CF Card Slot
Compact flash (CF) cards are advanced portable storage products, which are broadly applied in
diversified communication devices. They have fast-speed, large-capacity, small volume, light-weight,
and low power consumption.
Table 1-21
CF card specifications
Item
Specification
Number of CF card slots
1
Supported CF card capacity
256 MB/512 MB/1 GB (256 MB by default)
CF card functions
It can be used to record logs, store multiple program files
and configuration files.
z
Use CF cards provided by H3C only. The device may be incompatible with other CF cards.
z
An inserted CF card can be used only after you install and fasten the card cover.
10G XFP Transceiver
Table 1-22
10G XFP transceiver specifications
Model
Central
wavelength
Connector
Fiber
Max transmission
distance
62.5/125 µm multimode
fiber
33 m (108.27 ft.)
XFP-SX-MM850 850
nm
50/125 µm multimode fiber 300 m (984.25 ft.)
XFP-LX-SM1310 1310 nm
9/125 µm single mode fiber 10 km (6.21 miles)
XFP-LH40-SM15
50-F1
1550 nm
9/125 µm single mode fiber 40 km (24.86 miles)
XFP-LH80-SM15
50
1550 nm
LC
9/125 µm single mode fiber 80 km (49.71 miles)
