IBM System Storage TS7650G 3958 DD4, Installation Roadmap Manual

Page: 23 / 232

C031
CAUTION:
The power-control button on the device does not turn off the electrical current
supplied to the device. The device might also have more than one connection to
dc power. To remove all electrical current from the device, ensure that all
connections to dc power are disconnected at the dc power input terminals.
(C031)
C032
CAUTION:
Servicing of this product or unit is to be performed by trained service personnel
only. (C032)
C033
CAUTION:
To reduce the risk of electric shock or energy hazards:
v
This equipment must be installed by trained service personnel in a
restricted-access location, as defined by the NEC and IEC 60950, The Standard
for Safety of Information Technology Equipment.
v
Connect the equipment to a reliably grounded, safety extra low voltage (SELV)
source. An SELV source is a secondary circuit that is designed so that normal
and single fault conditions do not cause the voltages to exceed a safe level (60
V direct current).
v The branch circuit overcurrent protection must be rated per the following
table.
v
Use copper wire conductor only, not exceeding 3 m (9.8 ft.) in length and sized
according to the following table.
v Torque the wiring-terminal screws to the values in the following table.
v
Incorporate a readily available approved and rated disconnect device in the
field wiring.
(C033)
The following table appears in the product documentation with actual values
substituted for xxx:
Circuit breaker rating Minimum: xxx amps
Maximum: xxx amps
Wire size xxx AWG
xxx mm2
Wiring-terminal screw torque xxx inch-pounds
xxx newton-meters
Safety, danger, caution notices and labels
xxi