Toshiba Strata AirLink DK280, Installation Manual

Page: 102 / 878

4. If the reading is zero volts, leave one probe on the
ground terminal and move the other probe to the
second voltage terminal.
A to B: 1 volt maximum
then
CAUTION!
A to B: 1 ohm maximum
3.6.3 lntercabinet Ground
lntercabinet ground wires must be connected between
cabinets in systems with two or more cabinets.
Connect intercabinet ground wires supplied with each
expansion cabinet per Figure 3-19.
If a reading of zero volts is obtained on both
voltage terminals (white wire to green wire,
black wire to green wire), the outlet is not
properly grounded. Omit Steps 5 and 6, and
proceed directly to Step
7.
.
5.
6.
If a reading of zero volts on one terminal and a
reading of 100
-
on the other terminal is
3.7 AC Power
Cabling Installation
obtained, remove both probes from the outlet.
The system requires an input power source of
cycles,
and amps AC to operate. AC
power cabling requirements vary, depending on the
installation requirements. Refer to 2-Site
ohm.
CAUTION!
If the reading is more than one ohm, then the
outlet is not adequately grounded.
7. If the above tests show the outlet is not properly
grounded, the condition should be corrected (per
Article 250 of the National Electrical Code) by a
qualified electrician before the system i s
connected.
3.6.2 Frame Ground Test
Use the following procedure to test the frame ground
(point “B” in Figure 3-19) conductor for continuity.
WARNING!
Hazardous voltages that may cause death
or injury are exposed during the following
test. Use great care when working with AC
power line voltage.
1. Refer to Figure 3-1 9.
2. Disconnect the AC of the system to make
sure that the separate earth ground paths are
separated.
3. With a suitable meter, perform a reading
between points
“ A
and “B” shown in Figure 3-19.
Verify that the readings do not exceed the figures
listed below. If they do, the condition must be
corrected by a qualified electrician before the
system is connected.
Requirements, Table 2-1 for power
requirements.
Some floor-mounted configurations and all
mounted configurations require AC outlets, which
must be dedicated t o system use, fused, and
grounded. To avoid accidental turn off, do not
configure the outlet with an on-off switch.
3.7.1
Floor or
Systems with
One or
Two
Cabinets
Refer to the following instructions to install AC power
cabling to floor or systems with just one
or two cabinets (Figure 3-23):
1. Make sure all power supply switches
are in the off position.
2. If two cabinets are installed and local electrical
code allows only one AC power cord from the
system, install
in the bottom cabinet per
Figures 3-20 and 3-23.
3. For AC power cords that will be plugged directly
into a wall outlet: Undo the tie wrap that keeps the
cord coiled. Plug female end of the cord into the
power supply, and plug the male end into the wall
outlet.
4. For AC power cords that will be plugged into
power strips: Do not undo the tie wrap that keeps
the cord coiled. Plug female end of the cord into
the power supply, and plug the male end into the
3-28
January 1996