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14.0
Mixed Technology SwitchModule
Front Panel Features
This section describes the Fiber Distributed Date Interface
(FDDI) ports and LEDs on the front panel of the following
SwitchModules:
10BASE-T and FDDI Mixed Technology SwitchModule
10BASE-FB/FL and FDDI Mixed Technology
SwitchModule
Section 11.0, "10BASE-T SwitchModule Front Panel
Features", and Section 13.0, "10BASE-FB/FL
SwitchModule Front Panel Features" describe the
10BASE-T and 10BASE-FB/FL ports, respectively. Section
10.0, "Common Front Panel Features" describes the
PacketChannel and Module Status LEDs, and Reset button.
14.1 LEDs
FDDI LEDs are green only (not yellow). The following table
explains the FDDI port status LED blink sequences and the
10BASE-T and 10BASE-FB/FL port status or activity LED
blink sequences:
LED
State
FDDI Port
Green On Port is enabled and ring is
Green
Blinking
Off
10BASE-T Port
Green On Port is enabled and link is OK.
Green
Blinking
Off
Yellow
On
Yellow
Blinking
10BASE-FB/FL Port
Green On Port is enabled and link is OK.
Green
1 Blink
Green
2 Blinks
Green
3 Blinks
Green
4 Blinks
Off
Yellow
On
Yellow
Blinking
Indicates
operational.
Port is connecting.
Port or port functions are
disabled.
Link failure or waiting for
network connection.
Port or port functions are
disabled.
Heavy port traffic activity.
Normal port traffic activity.
No light on receive fiber.
Port received jabber.
Port is partitioned.
Remote fault.
Port or port functions are
disabled.
Heavy port traffic activity.
Normal port traffic activity.
UILDER ®
C
B
5000 S
M
ORE
WITCH
ODULE
MIC
connectors
6614M-FTP-A
10BASE-T and FDDI
SwitchModule
Model Number
3C96614M-FTP-A
14.2 Ports
FDDI ports on mixed technology SwitchModules are Dual
Attach Station (DAS) (A/B) ports that use MIC connectors.
14.3 Optical Bypass Connector
FDDI SwitchModules support one optical bypass connector
per DAS port. Use the optical bypass connector to preserve
a dual FDDI ring in the event of a station failure. The
optical bypass connector accepts an optical bypass switch
of type AMP FOTP-34 Method B using a mini-DIN
connector.
Q
S
R
UICK
TART AND
EFERENCE
FDDI Port Status
LEDs
OPTICAL
OPTICAL
BYPASS
BYPASS
6612M-FF-A
10BASE-FB/FL and FDDI
SwitchModule
Model Number
3C96612M-FF-A
13