Port Indicators; Figure 45: Mdi/Mdi-X Switch; Figure 46: At-3624Tr Port Leds - Allied Telesis CentreCOM AT-3606F Installation Manual

Figure 45: MDI/MDI-X Switch

Port Indicators

Figure 46: AT-3624TR Port
LEDs
MDI
MDI-X
1 3 5 7 9 11 13 15
X X X X X X X
X
2 4 6 8 10 12 14 16
By setting the MDI/MDI-X switch to MDI, you can connect two hubs via
standard straight-through cable. The switch affects Port 1 only. You can
continue to use Ports 2 through 24 for network connections via straight-
through cable, no matter which way you set the MDI/MDI-X switch.
If you connect a straight-through cable (or any cable for that matter)
between two hubs (or any two nodes) and the network LEDs do not
indicate a link condition, you can change the MDI/MDI-X switch. The hub
will not be damaged if the MDI switch is in the wrong position.
The port indicators on the AT-3600 Series hub front panels provide visual
diagnostic and activity information for network analysis. The AT-3624TR
provides a central bank of indicators for box-level monitoring.
As shown in Figure 46, each 10BASE-T port supports the following
indicator functions with one dual-color front panel LED per port:
10BASE-T PORT ACTIVITY
1 3
2 4
OFF ––––––––––––– NO LINK
ON GREEN ––––––– – LINK
FLASHING GREEN – – RECEIVING
10 BASE-T PORT ACTIVITY
1 3 5 7 9 11 13 15 17 19 21 23
2 4 6 8 10 12 14 16 18 20 22 24
INDICATOR STATUS ––– PORT STATUS
17 19 21 23
OFF ––––––––––––– NO LINK
X X X X ON GREEN ––––––– – LINK ON AMBER ––––––– PARTITIONED
FLASHING GREEN – – RECEIVING FLASHING AMBER – COLLISION
18 20 22 24
Switch set
to enable
MDI
interrepeater
connection
MDI-X
1 3
X
X
2 4
5 7 9 11 13 15 17
6 8 10 12 14 16 18
INDICATOR STATUS ––– PORT STATUS
ON AMBER ––––––– PARTITIONED
FLASHING AMBER – COLLISION
CentreCOM 3600 Series Hub/Repeaters
RS-232 STATUS POWER
TERMINAL PORT
AUI FAULT
MASTER
POWER
APPLIQUÉ PORT
19 21 23
20 22 24
45