GarrettCom FT14 User Manual

Page 30

FT14 and FT14H 10Mb Media Converters Installation and User Guide (09/09)

www GarrettCom com

Two Link LEDs, one for each

Magnum
FT14

Media

9
DC
.3
A
M
P

UP LINK

Li
n

RX
/
C

RX
A
C

Li
n

P
wr

FIBER

TWISTED PAIR

Lin
k

Rx
/A
c

Lin
k

An/FF

Ac
t

1 2 3 4 5 6 7 8 9

1 2 3 4 5 6 7 8 9 10 11 12 13 14

15 16 17 18 19 20 21 22 23 24

Fiber

Twisted Pair

Cable segments RJ-45 & Fiber

the attached cable segment is installed and operable. The network manager, using the
SNMP agent, can troubleshoot the cabling by examining the LINK status on each port.
This works fine as long as all of the cabling is twisted pair.

When a twisted-pair to fiber media converter is introduced, the FT14 regular

models of these products (not the Magnum FT14H’s) treat each attached cable segment
as a separate entity. LEDs on
the FT14 Media Converters
separately indicate LINK on
each port, enabling an installer
to see the LINK (or no-LINK)
status of each port and each
piece of cable independently.
This is nice for the network
installer, but it introduces a
discontinuity for the managed
network software which wants
to “see through” the media
converter, treating it as part of
the cable attached to a managed switch port.