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6.
Switch the new breaker to
ON
.
Replacing Fuses
Fuses protect the power circuits for the heat exchangers and other optional equipment. The
fuses are located on the DC distribution panel.
Circuit Type
Fuse Rating
Fuse Type
Heat exchanger
5 Amp
GMT
Optional equipment*
5 to 15 Amp
GMT
*Optional equipment can include test heads, CWDM EDFAs, and other third party equipment.
Fuse rating requirements vary by device.
To replace a fuse
1.
At the DC distribution panel, identify the defective fuse.
2.
Remove the defective fuse from the fuse position in the DC distribution panel.
3.
Replace the fuse with a fuse of the same rating and type.
4.
If the fuse fails again do not replace it. Troubleshoot to find the cause of the failure.
Replacing Rectifier Modules
If a Valere rectifier module experiences a failure in the field, or if you are converting from
20A to 30A rectifier modules (or vice versa), you can replace the module(s) in the field.
Rectifier modules are hot-swappable and can be replaced without disconnecting power to the
Valere shelf.
Note:
If the Valere shelf is not equipped with a redundant rectifier module, and the load is
heavy, Calix recommends temporarily installing an additional module into the shelf to carry
the load while you replace the failed module.
To replace a Valere rectifier module
1.
Remove an installed rectifier module as follows:
a.
Press the tab on the lower left of the face plate to release the ejector lever.
b.
Pull forward on the ejector lever to unseat the module.
c.
Grasp the module and slide it out of its slot. Set the module aside.
2.
Install a new rectifier module as follows:
a.
Insert the new rectifier module into the vacated slot.
b.
Push firmly on the module to seat it in the slot.
