Power Connections; Timeprovider 5000 Power Connector - Symmetricom TimeProvider 5000 User Manual

Power Connections

Use the following procedure to make the power connections:
Warning: To avoid possible damage to equipment, you must provide
power source protective fusing as part of the installation. The
TimeProvider 5000 is intended for installation in a restricted-access
location.
Caution: To avoid damage to the unit, remove the fuses in the fuse
panel which provides power to the TimeProvider 5000 before making
power connections.
1. Ensure the power source is turned off.
2. Connect the frame ground terminal to earth ground.
3. Locate the power connectors included in the installation kit, Phoenix Contact p/n
MC 1,5/2-STF-3,81.
4. Using 1 mm² / 18 AWG (minimum) stranded wire, connect primary power to the
connectors per the polarity markings. Use the polarity markings of "-48V" and
"RTN" as a reference for the proper polarity connection..
Note: The -48VDC power must be connected with the proper polarity.
The unit will not be damaged by reverse polarity, but the unit will not
operate if the polarity is reversed.
5. Insert the connectors into the power connections in the chassis. See
Figure 2-16. Tighten screws in the connector
Figure 2-16. TimeProvider 5000 Power Connector
098-00028-003 Revision A – June, 2011
Chapter 2 Installing
Making Ground and Power Connections
TimeProvider 5000 User's Guide 61