Switch Owner's Manual

Media Dependent Adapters
204515-C C-3
Figure C-2. 1000BASE-LX (Longwave Gigabit) MDA Front Panels
Table C-1 describes the 1000BASE-SX MDA LEDs.
Table C-1. 1000BASE-SX MDA LEDs
Label Type Color/State Meaning
Link Communication
link LEDs
Green/On A valid communication link is established.
Green/
Blinking
The corresponding port is management disabled.
Off The communication link connection is bad, or there is no
connection to this port.
Phy Select Phy selection
LEDs
Green/On The corresponding Phy port is selected.
Off The corresponding Phy port is in backup mode.
Activity Port activity
LEDs
Green/
Blinking
Indicates network activity level for the corresponding port.
A high level of network activity can cause LEDs to appear to
be on continuously.
1000BASE-LX
TX RX
Phy
Link
Activity
450-1LX MDA
9216EA
2
TXRX
1000BASE-LX
RX
1000BASE-LX
TX
Activity
Link
Phy Select
450-1LR MDA
2
450-1LR MDA
(1-port redundant)
450-1LX MDA
(single port)
1
1
1 = LEDs
2 = 1000BASE-FX SC Port Connectors