Optinal
Juniper Power Supply PWR-MX960-4100-AC-S
MX960 AC Power Supply Description
Four types of AC power supplies can be used: normal-capacity, high-capacity, high-capacity second-generation, and high-voltage second-generation universal (HVAC/HVDC) power supplies (for more information on the HVAC/HVDC power supplies, see MX960 High-Voltage Second-Generation Universal (HVAC/HVDC) Power Supply Description. Each of the high-capacity power supplies has a corresponding AC receptacle located in the MX960 chassis directly above the power supply. High-capacity second-generation have two AC receptacles on the power supply itself. Each receptacle requires a dedicated AC power feed and a dedicated breaker. For all power supplies the circuit breaker protection should be designed according to National Electrical Code (NEC) or any similar local standard based on maximum drawn current of the power supply specified in this document. See AC Power Cord Specifications for the MX960 Router for more details.
Normal-capacity AC power supply configurations have one overall zone that provides power to all components in the MX960 chassis. The DC and high-capacity AC, and high-capacity second-generation AC power supply configurations have two zones each of which provide power to specific components in the MX960 chassis.
Normal-Capacity AC Power Supplies
The MX960 can be powered by three normal-capacity AC power supplies (non-redundant configuration) or four normal-capacity AC power supplies (redundant configuration). In a non-redundant configuration, the three AC power supplies share power almost equally within a fully-populated MX960 system. In a redundant configuration there is full power redundancy meaning if one power supply fails or is removed, the remaining power supplies instantly assume the entire electrical load without interruption and provide full power for the maximum configuration for as long as the router is operational.
High-Capacity AC Power Supplies
The MX960 can also be powered by two high-capacity AC power supplies. The high-capacity power supplies must be installed in adjacent slots in the chassis. They can operate in one-feed mode or two-feed mode.
In one-feed mode, the power supplies output power at a reduced capacity (1700W). In two-feed mode, the power supplies provide power at full capacity (4100W). To operate the MX960 at full capacity, you must use two-feed mode. High-capacity power supplies require one power cord per feed. Therefore, to operate the MX960 at full capacity, you will need four power cords.
Each high-capacity AC power supply accepts two AC feeds in two unique AC receptacles, one receptacle located on the chassis and the other on the power supply.
When using the high-capacity AC power supplies in one-feed mode, plug one end of the power cord into the corresponding AC receptacle directly above the power supply in the chassis and the other end into an AC outlet. When using the high-capacity power supply in two-feed mode, you need two power cords. Plug one power cord into the AC receptacle on the chassis and then plug the other end into an AC outlet. Next, plug the second power cord into the AC receptacle on the AC power supply and plug the other end into an AC outlet.