Huawei OceanStor 2000 V3 Series Features Manual page 45

OceanStor V3 Series
HyperMetro Feature Guide for Block
No.
20
21
22
23
24
a: ISO (International Organization for Standardization)
b: Å is the international symbol for the non-SI unit ångström, a physical unit of length. One
Å is equal to ten-billionth of one meter.
c: ANSI (American National Standards Institute)
d: ISA (Instrument Society of America)
In addition, make sure that the following special requirements on the site are met:
l
l
l
Issue 05 (2018-01-30)
Item
AC power ground
AC surge
protection
DC power ground
Transmission
device
Cabinet
Ensure that doors, passageways, and elevators are of adequate dimensions to allow
passage of the cabinets.
Before installation, check whether to submit the qualification certificate of the
installation company to the property management entity in charge of the installation site.
Confirm the delivery time and installation time in advance, for example, from 8:00 a.m.
to 6:00 p.m.
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
Requirement
Do not connect the neutral line of a power cable to the
protection ground bar of any communication devices in the
equipment room. It is recommended that you set leading-out
terminals for AC safety ground in the equipment room for the
connection to devices.
The AC power system of the equipment room must be
equipped with a lightning arrestor with the rated discharging
current no less than 20 kA. The arrestor must be properly
grounded.
The storage device is a type of DC-I device on which the
"RTN" terminals and the ground terminal of the system
chassis are separated. The DC power module of the storage
device does not provide any ground terminals. Therefore, the
storage device is grounded through the ground terminal of the
system chassis.
The debugging of the transmission device is complete, and the
capacity of the transmission device meets the engineering
requirements. The protection ground of the transmission
system must be connected to the ground bar in the equipment
room.
The cabinet for installing the devices must be a standard 19-
inch cabinet. The depth of the cabinet must be at least 1000
mm (39.37 inches). The depth of a cabinet for installing high-
density disk enclosures must be at least 1100 mm (43.31
inches).
3 Installation
37