CANOGA PERKINS 3240S SNMP Managed Fiber Optic Multiplexer - Manual (Page 85)

3240S F I B E R O P T I C M U L T I P L E X E R
3240S Fiber Optic Multiplexer
Figure 5-1a
Troubleshooting Flowchart (1 of 3)
5-3
Start
Set local Mux to
local loopback
Disconnect Rx and
Tx fibers and install
fiber jumper
Does
data loop
local?
Does
data loop
remote?
Set local Mux to
remote loopback
Bad local Mux
Bad Remote Mux
This tests the remainder of the local Mux,
the fiber and part of the remote Mux. It does
not test the I/O Ports of the remote Mux.
A
Local I/O Ports and a
large portion of the local
Mux’s have been tested.
Yes
No
Yes
No