A-9
Cisco 11000 Series Content Services Switch Hardware Installation Guide
78-15146-02
Appendix A Specifications
DC Power Supply Safety Warnings
Network Management
The CSS supports the following network management protocols:
•
SNMP v1
•
SNMP v2
DC Power Supply Safety Warnings
Warning
The DC power supply must be installed in restricted access areas only (for
example, dedicated equipment rooms, equipment closets) in accordance with
articles 110-16, 110-17, and 110-18 of the national electric code, ANSI/NFPA 70.
Connect a DC CSS 11150 or CSS 11800 to a -48 VDC source that is electrically
isolated from the AC power source and is reliably grounded to earth.
This equipment is designed to permit the connection of the grounded conductor
of the DC supply circuit to the grounding conductor at the equipment. If this
connection is made, all of the following conditions must be met:
•
This equipment shall be connected directly to the DC supply system
grounding electrode conductor or bonding jumper from a grounding terminal
bar or bus to which the DC supply system grounding electrode conductor is
connected.
•
This equipment shall be located in the same immediate area as any other
equipment that has a connection between the grounded conductor of the same
DC supply circuit and the grounding conductor, and also the point of
grounding of the DC system. The DC system shall not be grounded
elsewhere.
•
The DC supply source is to be located within the same premises as the
equipment.
•
There shall be no switching or disconnecting devices in the grounded circuit
conductor between the DC source and the point of connection of the
grounding electrode conductor.
