AT-3624TR/3648TR Installation Manual - Allied Telesis

MDI
MDI-X
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
OFF ––––––––––––– NO LINK
ON GREEN –––––––– LINK
ON AMBER ––––––– PARTITIONED
FLASHING GREEN –– RECEIVING FLASHING AMBER – COLLISION
CentreCOM 3600 Series Hub/Repeaters
1 3 5 7 9 11 13 15 17 19 21 23
X X X X X X X X X X X
X 2 4 6 8 10 12 14 16 18 20 22 24
10BASE-T PORT ACTIVITY
AUI
APPLIQUÉ PORT
RS-232
TERMINAL PORT
STATUS
FAULT
MASTER
POWER
POWER
TM
CentreCOM 3624TR
IEEE 802.3/ETHERNET 10BASE-T
24 PORT HUB/REPEATER with Network Management
MDI
MDI-X
Switch set
to enable
interrepeater
connection
X
1 3
X
2 4
Figure 45: MDI/MDI-X Switch
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 straightthrough
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.
Port Indicators
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 5 7 9 11 13 15 17 19 21 23
2 4 6 8 10 12 14 16 18 20 22 24
Figure 46: AT-3624TR Port
LEDs
INDICATOR STATUS ––– PORT STATUS
OFF ––––––––––––– NO LINK
ON GREEN –––––––– LINK
FLASHING GREEN –– RECEIVING
ON AMBER ––––––– PARTITIONED
FLASHING AMBER – COLLISION
45