LCN System Installation 7-1 9/96
7
POWER-UP CHECK
Section 7
This section tells you how to initially power up the equipment; carefully follow the instructions.
7.1 POWER-UP PROCEDURE
To ensure that the customer service panel or control room power-distribution panel is
correctly wired, and to power up the LCN equipment cabinet(s) and Universal Station(s),
proceed as follows:
NOTE
The following procedures apply to each Power Entry Box, one at a time.
• Each Operator Interface Station (OIS) has a rocker switch located on the rear side of the
base, between the legs, that controls ac power to the station. Turn the switch to the
OFF position.
• Locate the power entry box near the bottom of each implemented cabinet and console
bay and open the two circuit breakers (see Figure 5-1). Remove TB1 access cover.
• Locate each LCN module front panel and turn the power switch to the OFF position.
Note that a Dual Node Module will have two power switches if both nodes are
installed.
• Close the breakers on the control room power-distribution panel and check for proper
voltage at the point of power connection (TB1) (see Figure 5-1 for US and cabinets and
Figure 5-2 for OISs). If okay, open the distribution panel breakers and then replace
TB1 access cover(s).
NOTE
The following procedures apply to each cabinet, OIS, and Universal Station, one at a time.
• Close the breakers on the control room power panel, close the two circuit breakers on
the power entry boxes, and turn the OIS rocker switches to the ON position. Find an
unused duplex receptacle, or unplug one module, and check for fault voltage between
the ground pin on the duplex and the cabinet frame. If voltage is found, correct the
problem before proceeding.
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