3.6.2 Frame Ground Test; 3.6.3 Lntercabinet Ground; Ac Power Cabling Installation; Floor Or Wall-Mounted Systems With One Or Two Cabinets - Toshiba Strata DK 280 Installation Manual

4. If the reading is zero volts, leave one probe on the
ground terminal and move the other probe to the
second voltage terminal.
CAUTION!
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
proceed directly to Step 7.
If a reading of zero volts on one terminal and a
5.
-
reading of 100
obtained, remove both probes from the outlet.
6.
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 is
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 plug(s) of the system to make
sure that the separate earth ground paths are
separated.
3. With a suitable volt/ohm meter, perform a reading
" A
between points 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.
3-28

3.6.3 lntercabinet Ground

.
lntercabinet ground wires must be connected between
cabinets in systems with two or more cabinets.
5 and 6, and
Connect intercabinet ground wires supplied with each
expansion cabinet per Figure 3-19.
3.7
The system requires an input power source of 50/60
cycles, 120VAC, and 15 amps AC to operate. AC
power cabling requirements vary, depending on the
installation requirements. Refer to ChaDter 2-Site
Requirements, Table 2-1 for electiical power
requirements.
Some floor-mounted configurations and all wall-
mounted configurations require AC outlets, which
must be dedicated to system use, fused, and
grounded. To avoid accidental turn off, do not
configure the outlet with an on-off switch.
3.7.1
Refer to the following instructions to install AC power
cabling to floor or wall-mounted systems with just one
or two cabinets (Figure 3-23):
1. Make sure all power supply (RPSU280) switches
2. If two cabinets are installed and local electrical
3. For AC power cords that will be plugged directly
4.
A to B: 1 volt maximum
then
A to B: 1 ohm maximum
Cabling Installation
AC Power
Floor or
One or Two Cabinets
are in the off position.
code allows only one AC power cord from the
system, install RPSB2 in the bottom cabinet per
Figures 3-20 and 3-23.
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.
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
January 1996