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T1600 DC Power System Electrical Specifications

 

Table 1 lists the DC power system electrical specifications.

Table 1: Power System Electrical Specifications

Item

Specification

DC input voltage

Operating range: –40.0 to –72.0 VDC

Note: If the input voltage from the DC power source drops below –37.5 to –39.5 VDC, the routing platform automatically shuts down. During automatic shutdown, the circuit remains active. When the input voltage returns to –43.0 to –44.0 VDC, the router automatically starts up again and the system returns to normal operation within 30 minutes. No operator intervention is required.

DC system current rating

174 A @ –48 VDC (nominal) (8350 W)

For each three-input 240-A DC power supply, we recommend that you provision at least 67 A @ –48 VDC per input. Although Input 0 in the three-input 240-A DC power supply requires less power, we recommend provisioning the same amount of power for each input to avoid the possibility of connecting the lower-powered DC cable to Input 1 or Input 2.

For each four-input 240-A power supply, we recommend that you provision at least 50 A @ –48 VDC per input . Although Input 0 and Input 1 in the four-input 240-A power supply require less power, we recommend provisioning the same amount of power for each input to avoid the possibility of connecting the lower-powered DC cables to Input 2 or Input 3.

For each six-input DC power supply, we recommend that you provision at least 56 A @ –48 VDC per input . Although Input 0 in the six-input DC power supply requires less power, we recommend provisioning the same amount of power for each input to avoid the possibility of connecting the lower-powered DC cables to Input 1 through Input 5.

You must provision a circuit breaker for each DC power supply input rated for at least 125% of the continuous current that the system draws at –48 VDC.