Replace Power Supply
The router provides a choice of two different power supplies as AC and DC. The router also supports a combination of AC (PWR-400-AC) and DC (PWR-400-DC) PSUs together:
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DC power (PWR-400-DC)—The DC power supply uses two-position terminal block-style connector with positive latching or securing, and labeled connections for + 48V and -48V. The terminal block connector is of suitable size to carry the appropriate AWG wire size to handle the input current of the power supply. No ON/OFF switch is provided.
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AC power (PWR-400-AC)—The AC power supply has an IEC 320-type power receptacle and a 16 Amp service connector. You can use standard right angle power cords with the AC power supply. The power supply includes a power cord retainer. No ON/OFF switch is provided.
You can install dual power supplies for redundancy.
![]() Note |
Products that have an AC power connection are required to have an external SPD provided as part of the building installation to comply with the Telcordia GR-1089 NEBS standard for electromagnetic compatibility and safety. |
![]() Caution |
Don’t use interface module and power supply ejector handles to lift the chassis; using the handles to lift the chassis can deform or damage the handles. |
PSU Redundancy Lost Alarm:
PSU redundancy lost alarms are generated when there’s no proper input feed applied on any one of Power Modules (PMs) (PM0 or PM1). The alarms are also generated when the output for PM0 or PM1 isn’t proper.
The following alarms are raised for PSU redundancy lost event with a faulty PM0:
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Power Module Generic Fault
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Power Module Error
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Power Group Redundancy Lost