Power And Ground Requirements; Power Budget; Power Requirements; Grounding Requirements - Hatteras HN4000 Hardware Installation Manual

1.7

Power and Ground Requirements

1.7.1 Power Budget

The power source feeding an HN4000 must provide a nominal ‐48 VDC at 2 Amperes.
DC voltage Min/Max is ‐40.0 to ‐57.6 VDC, measured at the chassis.
A 2 Ampere fuse rating is recommended.

1.7.2 Power Requirements

The rack for the installation of the HN4000 must be equipped with a circuit breaker panel or
fuse panel. If the rack does not have a circuit breaker panel or fuse panel, one must be accessi‐
ble within a cabling distance of 15 feet (4.5m) of the power inputs on the HN4000 chassis.
The HN4000 must be connected to a grounded Safety Extra Low Voltage (SELV) source. The
SELV source is defined as DC voltages rated under 60 VDC. Refer to the section "Installing the
Ground and Power Cables" on page
The DC return is to remain isolated from the system frame and the chassis (DC-I).
Note

1.7.3 Grounding Requirements

The HN4000 must be permanently grounded to a Common Bonding Network (CBN).
Caution
The HN4000 chassis is equipped with a double‐hole crimped terminal. Grounding of the raw
end of the cable should conform with local practices, using wire sizes of
10‐14 AWG (1.6‐2.6 mm).
Refer to the section "Installing the Ground and Power Cables" on page
information.
1.8

Required Tools

The following tools are required for an HN4000 installation:
• #1, #2, and #3 Phillips screwdrivers
• 1/8 inch flat blade screwdriver
• 3/8 inch hex nut driver or ratchet/socket combination
• Cable tie cutters
Tools
• Crimper for #10‐14 AWG lug
920550-5020 Rev 14
Power and Ground Requirements
2‐6 for installation information.
2‐6 for installation
HN4000 Hardware Installation Guide
1-9