OPTICAL SYSTEMS DESIGN
DOC ID: 10115304
OSD2251P OPERATOR MANUAL
PAGE 6
1.1.2
APPLICATIONS
▲
Any network utilising a mix of copper
and fiber
▲
Industrial IP communications
▲
Self-healing Gigabit Ethernet
backbone networks
▲
Networks using Power over Ethernet
devices such as cameras, intercoms,
access control, telephones, etc.
1.1.3
FEATURES AND BENEFITS
▲
Complies with IEEE802.3i/802.3u/
802.3ab 10/100/1000Base-T,
IEEE802.3u, 100Base-Fx,
IEEE802.3z 1000Base-Lx/Sx
standards
▲
Has a total of four ports: two fixed
copper ports for 10/100/1000Base-T
and two SFP ports for the fiber ring or
non-ring (100Base-Fx or 1000Base-
X)
▲
A network diameter of hundreds of
kilometers is practical
▲
Ring reconfiguration in the case of
cable or switch failures takes less than
two milliseconds per hop
▲
MDI/MDIX Crossover: no need for
crossover cables
▲
Can be used with either singlemode
or multimode fiber over a variety of
link budgets
▲
Auto-Negotiation for half or full
duplex operation
▲
Supports IEEE802.3af/at Alternative
A and B cable wiring
▲
Provides up to 60W to each RJ45 port
▲
Complies with the IEEE802.3af/at
standard including compliant powered
device (PD) signature detection and
classification
▲
Powered by either one or two non-
critical 46 to 57V
DC
supplies
▲
Operates over the temperature range
of -20°C to +75°C
▲
Compatible with the OSD2244,
OSD2254 and OSD2258 Gigabit
Ethernet Switches.
▲
DIN rail Mounting
▲
Available for operation in Ring or
point-to-point configuration
▲
OSDview Lite Network Management
System Standard
▲
OSDWeb Web browser GUI
▲
SFP modules sold separately
▲
Supports 10KB jumbo frames