Black Box TotalSwitch Series, Installation Manual And Users Reference Manual

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Figure 2.3 Jumper Locations and Default Settings for
TotalSwitch TP/4+FO/2
FiberAlert Jumpers
TotalSwitch FO/4 Modules (board revisions -20 and higher) and
TotalSwitch TP/4+FO/2 Modules feature FiberAlert. When a fiber
optic receive fault is detected, FiberAlert makes the link LED for the
opposite end of the fiber conversion pulse, signifying there is a
problem and thus eliminating “silent failures.”
FiberAlert is enabled/disabled on each fiber port of a TotalSwitch
Module by repositioning the shunts on the 3-pin, FiberAlert jumper
blocks on the PCB. TotalSwitch Modules are shipped from the factory
with FiberAlert disabled on each port.
The FiberAlert jumper blocks on TotalSwitch TP/4+FO/2 Modules
are located at positions JP15 (Port 1) and JP16 (Port 2). The FiberAlert
jumper blocks on TotalSwitch FO/4 Mdoules are located at positions
JP12 for Port 1 (labeled Port 0 on the PCB), JP11 for Port 2 (labeled
Port 1 on the PCB), JP10 for Port 3 (labeled Port 2 on the PCB) and
JP9 for Port 4 (labeled Port 3 on the PCB).
Enable FiberAlert by positioning the shunt over the top and center
pins. Disable FiberAlert (factory default) by positioning the shunt over
the center and bottom pins.
2.3