Peripheral Unit Grounding - Mitel 3300 ICP Technician's Handbook

3300 ICP Technician's Handbook – Release 3.2
5. Remove the plastic dust caps from the fiber optic cable and the
connector ferrules on the FIM faceplate.
6. Plug the fiber connectors into the connectors on the FIM
faceplate. The fiber connectors have a small key that must be
aligned with a slot on the FIM connectors. Lock each connector
into position by pushing the metal collar forward and clipping it
onto the FIM connector.

Peripheral Unit Grounding

CAUTION: Ensure that the grounding meets the requirements
specified in the Safety Instructions. These instructions are
packaged with each system.
WARNING: Danger to personnel and/or equipment damage
could result if the cabinet is not powered off.
To check the grounding:
1. Ensure that the power switch (S1) on the power distribution unit
(PDU) is set to the off (0) position and that the switch on the
power converter faceplate is set to the off (0) position.
2. Attach the anti-static wrist strap to your wrist.
3. Slide the installed circuit cards forward slightly so that the card
connectors are not in contact with the cabinet backplane. Leave
the power converter installed.
4. Remove the anti-static wrist strap.
5. Plug the external power cable from the AC commercial power
supply into the power-input plug on the power distribution unit
(PDU).
6. Disconnect the protective earth wire from the protective earth
ground stud on the rear of the cabinet.
7. Using a digital multimeter, measure the AC potential between
the protective earth wire (building ground) and the protective
earth ground stud. A voltage reading of less than 1 VAC is
acceptable. To prevent damage to the multimeter, set it to the
maximum AC scale, then reduce the setting gradually to the 10
VAC range.
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