Installation guide

BlackDiamond Switch Hardware Installation Guide 1-5
B
LACK
D
IAMOND
6800 S
WITCH
C
OMPONENTS
Table 1-2 describes the specifications for the 1000BASE-LX70 interface.
*The transmitter output power level for the 1000BASE-LX70 is +5dBm. The maximum allowable receiver input power level is
-3dBm. Therefore, there is a minimum of 8dB loss required for the link to operate without errors. This minimum required loss
can be achieved using a fiber length of 32km (0.25dB/km provides 8dB loss), or by adding 10dB of fixed optical attenuator at
the receiver end.
F
ULL
-D
UPLEX
The BlackDiamond 6800 switch provides full-duplex support for all ports. Full-duplex
allows frames to be transmitted and received simultaneously and, in effect, doubles the
bandwidth available on a link. All ports on the BlackDiamond 6800 switch
autonegotiate for half- or full-duplex operation. Gigabit Ethernet and 100BASE-FX ports
operate in full-duplex mode, only.
B
LACK
D
IAMOND
6800 S
WITCH
C
OMPONENTS
The BlackDiamond 6800 switch, shown in Figure 1-1, consists of the following
components:
•
One 10-slot chassis with backplane
•
Eight I/O module slots, labeled Slot 1 through Slot 8
•
Two MSM64i module slots, labeled Slot A and Slot B
•
Two power supplies
•
One fan tray (accessed from the rear of the unit)
•
One electromagnetic discharge (ESD) wrist strap receptacle
Table 1-2:
1000BASE-LX70 Specifications
Parameter Minimum Typical Maximum
Transceiver
Optical Output Power 0dBm 3dBm 5dBm*
Center Wavelength 1540nm 1550nm 1560nm
Receiver
Optical Input Power Sensitivity -20dBm
Optical Input Power Maximum -3dBm
Operating Wavelength 1200nm 1560nm