Enterasys Networks BL-89620ENT - Manual (Page 22)

3-2 Troubleshooting
The Mid-Span Power Hub operates but one
of the powered devices does not work. Verify that you are using a standard UTP Cat. 5
cable, including all eight wires (four pairs.) Try to
move the same load into a different port on the same
hub. If it works, there is probably a faulty port or bad
RJ45 port connection. If possible, try to connect the
load device into a different hub.
Try using a different Ethernet cable. If it works, there
is probably a faulty connection over the long cable,
or a bad RJ45 connection.
Product Consideration:
BL-89500ENT, BL-89400ENT, BL-89700ENT Series
If the “fuse blown” light is on or flashing, replace fuse
F2 with a 0.5 A rated fuse.
BL-89600ENT Series
If the “fuse blown” light is on or flashing, replace fuse
F4 with a 0.5 A rated fuse.
The Mid-Span Power Hub operates and the
load device works, but there is no data link. Verify that the indicator for the port is “on.” Verify
that the Mid-Span Power Hub is connected to the
Ethernet network with a good connection.
Verify that the Ethernet cable is Category 5 or
greater, and is less than 100 meters in length from
the Ethernet source to the load.
Try to connect a different device over the same port.
If it works and a link is established, there is probably
a faulty data link in the load.
Try to reconnect the load into a different output port
(remember to move the input port accordingly). If it
works, there is probably a faulty output or input port
in the Mid-Span Power Hub or a bad RJ45
connection.
The Mid-Span Power Hub operates but one
of the ports is powering a load without
turning the “Power" indicator on. Move the load into a different output port. If the
indicator turns “on,” there is a fault in the previous
output port.
Table 3-1 Troubleshooting Checklist (continued)
Problem Recommended Action