48 TimeProvider 2300/2700 User’s Guide 098-00564-000 Revision A3 – July, 2013
Chapter 2 Installing
Making Ground and Power Connections
DC Power Connections
Use the following procedure to make the power connections for the DC version of
the TimeProvider 2300/2700.
1. Ensure the power source is turned off.
2. Connect the two frame ground terminals to earth ground.
3. Locate the power connectors included in the installation kit.
4. Using 1 mm² / 18 AWG (minimum) stranded wire, connect primary and
secondary power to the connectors per the polarity markings. Use the polarity
markings of "A", “B” and "RTN" as a reference for the proper polarity
connections. Tighten the screws for Returns to a torque value of 9.6 in-lbs.
5. Attach the DC power connector cover, as shown in Figure 2-10, and tighten the
screws.
Figure 2-10. TimeProvider 2300/2700 DC Power Connector Cover
Warning: To avoid possible damage to equipment, you must provide
power source protective fusing as part of the installation. The
TimeProvider 2300/2700 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 2300/2700 before
making power connections.
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.
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