User Manual

TeraHop Networks IMS Installation and Operation Manual V1.1 08-0000-01-R1
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5.12 Power Distribution
Warning
Electrical Shock Hazard
Power connections will be made during this installation that will require the
technician to make electrical connections. A simple 12 VDC circuit can be very
hazardous.
Make sure all electrical circuits are deenergized to the maximum extent possible.
NEVER wear jewelry when working on equipment. NEVER work alone.
Failure to adhere to this warning could result in serious injury or even death.
Proper power distribution is critical for reliable system operation. The following sections
define the requirements and procedure for installation and wiring of the power
distribution components.
5.12.1 Unit Power Requirements
The worst-case power requirements of each component are listed in the table below:
Table 1. Unit Power Requirements
Component Nominal Voltage Max. Wattage / Current
THN Gateway Router 12VDC (11.8 14 VDC) 2.2A (negative ground only)
Gateway Server Linux PC 12VDC (11.8 14 VDC) 2.7A (negative ground only)
MMR System Windows PC 12VDC (11.8 14 VDC) 2.7A (negative ground only)
Garrett Ethernet Switch 12VDC (11.8 14 VDC) 0.25A (negative ground only)
Note: This equipment will not work in positive ground vehicles.
5.12.2 Total System Power Requirements
Based on the unit power requirements listed above, the overall system power
requirements can be calculated as follows:
Total Power required for 12V components: 94.2W (7.85A@ 12VDC)