Allied Telesis AT-MCF12VF, SM - Manual (Page 14)

Overview
6
Link Test Switch
The Link Test switch is a fast and easy way for you to test the integrity of the
fiber optic connections to the fiber optic ports on the media converter (see
Figure 4). The AT-MCF6xx unit has one Link Test switch which is used to test
all six fiber optic ports on the unit. The AT-MCF12xx unit has two Link Test
switches; one switch is used to test the fiber optic ports in channels 1 through
6 and the second switch is used to test the fiber optic ports in channels 7
through 12 on the unit.
Figure 4 Link Test Switch
The Link Test switch is used after installation to verify that the unit and
connections are operating properly, or whenever you need to test the fiber
optic ports or the integrity of the fiber connections to the nodes connected to
the ports.
The LED next to the Link Test switch indicates the operating mode of the
fiber optic ports. If the Test LED is lit amber, a link test is being performed on
the fiber optic ports associated with the switch. The section “Troubleshooting”
on page 23 contains instructions for performing a link test. Refer to Table 2,
“Power Supply and Link Test Switch LEDs,” on page 3 for the Link Test
Switch LEDs.
Note
The media converter will not pass network data when the Link Test
switch is in the Link Test position. For normal network operations, the
switch must be set to the Normal setting.
RESET
7-12 LINK TEST
NORM
TEST
MCF12SC 10Base-TX/FX Media Converter
MANAGEMENT
LNK REC
STATION HUB OR
10Base-T
RS232
P O W E R
BCKP
MAIN
Ready
Tx Rx Tx Rx Tx Rx Tx Rx Tx Rx Tx Rx
7 8 9 10 11 12
Tx Rx Tx Rx Tx Rx Tx Rx Tx Rx Tx Rx
T-LNK
F-LNK Active
1 2 3 4 5 6
1-6 LINK TEST
NORM
TEST
RESET
7-12 LINK TEST
NORM
TEST
1-6 LINK TEST
NORM
TEST