Allied Telesis AT-MCF112VF, SM, LH - 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-MCF106xx unit has one Link Test switch which is used to
test all six fiber optic ports on the unit. The AT-MCF112xx 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 25 contains instructions for performing a link test.
Note
Leaving the Link Test switch in the Link Test position will not affect
the operation of the media converter during normal network operations.
However, the MissingLink feature of the media converter is disabled
when the switch is in the Link Test position. Consequently, it is
recommended that the Link Test switch be set to the Normal position
during normal network operations.
MCF112SC 100Base-TX/FX Media Converter
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
P O W E R
BCKP
MAIN
MANAGEMENT
10Base-T
TEST
7-12 RS232
TEST 1-6
X II
LNK
REC
Ready RESET
NORM
TEST
1 2 3 4 5 6
FDX
HDX
NORM
TEST
FDX
HDX
7 8 9 10 11 12
MAN
X II
LNK
REC
Ready