AT-30xxTR Multiport Repeater
7
Network Port
Indicators
A two-high set of LEDs located between and integrated with the BNC and
AUI connectors on the front panel (see Figure 6) indicates which network
port connection is in use. The left LEDs light if the BNC port is in use and the
right LEDs light if the AUI port is in use (you can use both network ports at
the same time, in which case both sets of LEDs will light up).
Station Port
Status Indicators
A pair of LEDs indicate the status of each of the 10BASE-T port connections.
The upper (green) LED in the pair (Port OK) lights if the port has a valid link,
and the lower (yellow) LED (Receiving) lights if the port is receiving data.
Refer to Chapter 3, 4 or 5 for locations of the port status indicators, which
vary depending on the number of ports per model.
Switches
BNC Termination
Switch
The BNC Termination Switch is located on the front panel to the left of the
BNC receptacle (see Figure 6 above). You use this switch to enable or disable
internal termination at this end of the 10BASE2 segment:
❑
Use the OFF position to disable termination if you are installing a link
segment with a BNC-T connector on this port.
❑
Use the ON position to enable termination if you are installing a link
segment without a BNC-T connector at this port and the unit is at the
end of the cable.
MDI/MDI-X
Switch
The 10BASE-T RJ45 ports on the AT-30xxTR hubs are generally used for
network connections between the hub and a transceiver. Such connections
require a standard “straight-through” cable, meaning that a pin at one end
connects to a pin with the same number at the other end.
Figure 6: AT-30xxTR
Network Ports
1
2
3
4
5
6
7
8
9
10
11
12
X
X
X
X
X
X
X
X
X
X
X
ACTIVITY
COLLISION
POWER
1
2
3
4
5
6
7
8
9
10 11 12
1
2
3
4
5
6
7
8
9
10 11 12
TERMINATOR
OFF
ON
PORT OK
RECEIVING
PORT OK
RECEIVING
PORT OK
RECEIVING
POWER
10BASE-T NETWORK PORTS
10BASE-T PORT ACTIVITY
STATUS
AUI
BNC
1
2
3
6
1
2
3
6
1
2
3
6
1
2
3
6
MDI
MDI-X
IEEE 802.3
/ETHERNET
1
0BASE-
T
MUL
TIPORT REPEA
TER
ACTIVI
COLLIS
POWER
11 12
11 12
TERMINATOR
OFF
ON
PORT OK
RECEIVING
PORT OK
RECEIVING
Y
STATUS
AUI
BNC
