CANOGA PERKINS 3240S SNMP Managed Fiber Optic Multiplexer - Manual (Page 86)

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 5-1b
Troubleshooting Flowchart (2 of 3)
5-4
*Note: The values of power reading toler
ance is based on 850nm LED. Laser
1310nm or 1550nm applications must be
adjusted accordingly Disconnect Rx and
Tx fibers and install
fiber jumper
Does
Data Loop
Local?
>/= -32dB?
*
Measure optical pwr.
level out of Rx at
local Mux
Bad local Mux
Yes
No
Yes
No
A
Go to remote Mux.
Install jumper cable
in Tx, measure Tx
pwr. of remote Mux
-18dB
+/- 2dB?
*
B
Bad local Mux
C