Dell Z9100 EMC PowerSwitch –ON Installation Guide March 2021 - Page 15

NEBS compliance, Important information, NEBS-compliant ground installation

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4 NEBS compliance For your switch to be network equipment building system (NEBS) compliant, you must follow the instructions detailed in this section. To be NEBS compliant, orient your switch in the rack so that the air inlet is from the front aisle and the air exhaust is to the back aisle. Topics: • Important information • NEBS-compliant ground installation Important information WARNING: The SFP+, QSFP, QSFP28, console, Ethernet management, and universal serial bus (USB) ports are suitable for connection to intrabuilding or unexposed wiring or cabling only. You MUST NOT metallically connect the ports to interfaces that connect to the out side plant (OSP) or its wiring. Use these interfaces as intrabuilding interfaces only (Type-2 or Type-4 ports as described in GR-1089-CORE, Issue 6) and they require isolation from the exposed OSP cabling. Adding primary protectors is not sufficient protection to connect these interfaces metallically to OSP wiring. WARNING: If you install and connect the Z9100-ON switch to a commercial AC power source, you must connect the switch to an external special protection device (SPD). To be NEBs compliant: ● Locate your switch in a restricted-access area were only trained personnel are allowed access. ● Install and connect your switch to the common bonding network (CBN). ● You can also install and connect your switch to the central office. ● Connect the battery returns of your switch as DC-I. ● Ground your switch using a copper ground conductor. ● Clean and coat all bare grounding connection points on your switch with an anti-oxidant solution before making connections. ● Bring all unplated surfaces on your switch to a bright finish and treat them with an anti-oxidant solution before making connections. ● To ensure electrical continuity, remove any nonconductive surfaces on your switch from the threads and connection points. ● Use the two-hole, Listed, compression-type lug with an AWG 14 gauge wire for switch grounding. NOTE: The Z9100-ON can operate at -40.5 VDC to -60 VDC at a maximum current level of 15A. NOTE: The Z9100-ON is Earthquake Z4-compliant when you attach the ReadyRails to the four-post frame using threaded hardware. Do not use the tool-less or two-post installation methods. NEBS-compliant ground installation Before you install the switch into a rack, install the ground (GND) lug assembly. Your switch includes two installed M3 screws on the lower-left side of your switch. Your switch also includes an assembled UL-certified GND lug with bracket, packaged separately. If any parts are missing, contact your Dell EMC sales representative. NEBS compliance 15

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NEBS compliance
For your switch to be network equipment building system (NEBS) compliant, you must follow the instructions detailed in this
section.
To be NEBS compliant, orient your switch in the rack so that the air inlet is from the front aisle and the air exhaust is to the
back aisle.
Topics:
•
Important information
•
NEBS-compliant ground installation
Important information
WARNING:
The SFP+, QSFP, QSFP28, console, Ethernet management, and universal serial bus (USB) ports
are suitable for connection to intrabuilding or unexposed wiring or cabling only. You MUST NOT metallically
connect the ports to interfaces that connect to the out side plant (OSP) or its wiring. Use these interfaces as
intrabuilding interfaces only (Type-2 or Type-4 ports as described in GR-1089-CORE, Issue 6) and they require
isolation from the exposed OSP cabling. Adding primary protectors is not sufficient protection to connect these
interfaces metallically to OSP wiring.
WARNING:
If you install and connect the Z9100-ON switch to a commercial AC power source, you must connect
the switch to an external special protection device (SPD).
To be NEBs compliant:
●
Locate your switch in a restricted-access area were only trained personnel are allowed access.
●
Install and connect your switch to the common bonding network (CBN).
●
You can also install and connect your switch to the central office.
●
Connect the battery returns of your switch as DC-I.
●
Ground your switch using a copper ground conductor.
●
Clean and coat all bare grounding connection points on your switch with an anti-oxidant solution before making connections.
●
Bring all unplated surfaces on your switch to a bright finish and treat them with an anti-oxidant solution before making
connections.
●
To ensure electrical continuity, remove any nonconductive surfaces on your switch from the threads and connection points.
●
Use the two-hole, Listed, compression-type lug with an AWG 14 gauge wire for switch grounding.
NOTE:
The Z9100-ON can operate at -40.5 VDC to -60 VDC at a maximum current level of 15A.
NOTE:
The Z9100-ON is Earthquake Z4-compliant when you attach the ReadyRails to the four-post frame using threaded
hardware. Do not use the tool-less or two-post installation methods.
NEBS-compliant ground installation
Before you install the switch into a rack, install the ground (GND) lug assembly.
Your switch includes two installed M3 screws on the lower-left side of your switch. Your switch also includes an assembled
UL-certified GND lug with bracket, packaged separately. If any parts are missing, contact your Dell EMC sales representative.
4
NEBS compliance
15