user manual

EonStor A12U/A08U-G2421 Installation and Hardware Reference Manual
(2). One (1) audio-jack-to-DB9 cable is provided to facilitate the connection of
the COM1 port for local terminal emulation access to the array.
(3). Two (2) power cords are provided for the power connections to the power
sources.
(4). The RJ-45 Ethernet cable for network management connection is a user-
supplied item.
5. Memory module: If you wish to change the pre-installed memory module, a
separately purchased module must be installed. Please contact your vendor for a
different memory module or consult the list of compatible modules.
6. BBU module: If you wish to use a BBU module, the module can be purchased
separately.
7. Rack installation: The enclosure chassis can be installed into a rack cabinet
using self-purchased mounting rails, or Infortrend’s IFT-9272CEslide28 or IFT-
9272CEslide36 rails. (See Section 2.7) A printed copy of installation guide is
provided with the slide rails package.
2.3 Safety Precautions
2.3.1 Precautions and Instructions
1. Be sure the correct power range (100-120 or 220-240VAC) is supplied by your
rack cabinet, UPS device, or power outlet.
2. Thermal notice: All drive trays (even if they do not contain a hard drive) must be
installed into the enclosure. Leaving a drive bay or module slot open will
severely affect the airflow efficiency within the enclosure, and will consequently
lead to system overheating. Keep a faulty module in place until you have a
replacement unit and you are ready to replace it.
3. An enclosure without disk drives can weigh over 25 kilograms. Two (2) people
are required to install or relocate the subsystem. To avoid damage to disk drives,
drives should be removed from the enclosure before moving the subsystem.
4. Handle the system modules by the retention screws, extraction levers, or the
modules metal frames/faceplates only. Avoid touching the PCB boards,
connector pins, and soldered surfaces.
5. Airflow considerations: The subsystem requires an airflow clearance especially
on the front and rear. For proper ventilation, a minimum of 2.5cm is required
between the front of the enclosure and rack cover; a minimum of 5cm is required
between the enclosure and end of the rack.
Safety Precautions
2-2