Brocade Communications Systems VDX 8770-4, Hardware Installation Manual, Page: 29 / 141

TABLE 4 NEBS installation requirements
Reference Warning, requirement, or statement
Intrabuilding or Intra-connection WARNING: The intra-building copper Ethernet ports of the equipment or
subassembly are suitable for connection to intrabuilding or unexposed
wiring or cabling only. The intra-building ports of the equipment or
subassembly MUST NOT be metallically connected to interfaces that
connect to the outside plant (OSP) or its wiring. These interfaces are
designed for use as intra-building interfaces only (Type 2 or Type 4 ports
as described in GR-1089-CORE, Issue 6) and require isolation from the
exposed OSP cabling. The addition of Primary Protectors is not sufficient
protection in order to connect these interfaces metallically to OSP wiring.
First Level Lightning Criteria AC Power Ports WARNING: The Brocade device must be connected to external Special
Protection Devices (SPD) when installed and connected to commercial
AC power.
Class A2 Voltage Accessibility The Brocade device must be located in a restricted access location were
only crafts personnel are allowed access.
Class B Voltage Accessibility The Brocade device must be located in a restricted access location were
only crafts personnel are allowed access.
Equipment Grounding Systems The Brocade device must be installed and connected to the CBN, IBN, or
Ether.
Communication Equipment Grounding The Brocade device is suitable for connection to the Central Office.
Bonding of Battery Return (BR) Input Terminals The battery returns of the Brocade device must be connected (DC-I).
Connections The Brocade device must be grounded via a copper ground conductor.
Connections All bare grounding connection points to the Brocade device must be
cleaned and coated with an antioxidant solution before connections are
made.
Connections All surfaces on the Brocade device that are un-plated must be brought to
a bright finish and treated with an antioxidant solution before connections
are made.
Connections All non-conductive surfaces on the this device must be removed from all
threads and connection points to ensure electrical continuity.
Connections The Brocade VDX 8770 utilizes a two-hole compression type, agency-
approved crimped connector with a copper #2 American Wire Gauge
(AWG) that utilizes 20 inch pounds of torque to secure it to the frame and
EUT.
Input DC Voltage The Brocade VDX 8770 is capable of operating at 200-240 V, 50/60
Hz at a maximum current level of 16.0 A max., or -48VDC, 70.0 A max.
per power supply.
Thermal policy Due to recent changes in the NEBS thermal policy testing procedures,
Brocade has made changes to the thermal policy for the Brocade VDX
8770. These changes include an additional fan speed (raising the number
of fan speeds to 4 from 5) and slightly altered trigger temperatures.
Additional non-user visible RASlog message generation has also been
included with this change to allow for easier debugging and thermal
history recording.
The precise values for temperature and fan RPM are related to the
specific hardware combinations possible in the modular switch. For the
sake of brevity, the following table lists the possible range of values for
each heat level.
TABLE 5 NEBS thermal policy levels
Level Description Temperature RPM
1 LOW up to 25C 2500 RPM
Preparing for Installation
Brocade VDX 8770-4 Hardware Installation Guide
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