• Cisco A900-PWR550-D-E 550W enhanced DC PSU white silver unit
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Cisco

Cisco A900-PWR550-D-E | ASR 900 550W DC Power Supply, Enhanced T-Shaped Connector

A900-PWR550-D-E

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Description

A 550W DC power supply module for Cisco ASR 900 Series aggregation routers, with a +12 VDC output to the system and a nominal DC input of +24, -48 or -60 VDC. This variant uses the enhanced T-shaped DC input connector rather than a Euro-style terminal block. It is hot-swappable and operates separately from the fan tray, and supports single-PSU operation or load-sharing across two or more power supplies. It is suited to ASR 902 and ASR 903 chassis deployments.

Enquire with XS Network Tech for new or used pricing and availability.

Features

- Field-replaceable and hot-swappable, operating separately from the fan tray
- Front panel with handle and two status LEDs; no ON/OFF switch
- Dying Gasp support
- Supports single-PSU operation, or load-sharing with two or more PSUs
- AC and DC supplies can be mixed in one chassis

Warranty

All products sold by XS Network Tech include a 12-month warranty on both new and used items. Our in-house technical team thoroughly tests used hardware prior to sale to ensure enterprise-grade reliability.

All technical data should be verified on the manufacturer data sheets.

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Technical Specifications

FAQs

Technical Specifications

- 550 W maximum output power
- +12 VDC output to the system
- Nominal DC input: +24 VDC / -48 VDC / -60 VDC
- DC input voltage range: 19.2 to 72 VDC
- T-shaped (enhanced) DC input connector
- Wire gauge: 12 AWG minimum for -48/-60 VDC; 8 AWG minimum for 24 VDC; connector accepts 8 AWG maximum
- DC power supply MTBF: 300,000 hours at 40°C
- Shipping weight: 3.6 lbs
- Not compatible with ASR 907 chassis (supported in ASR 902/903)

FAQs

Q: What is the difference between the A900-PWR550-D-E and the A900-PWR550-D?
A: The A900-PWR550-D-E uses a T-shaped enhanced power connector for DC input, while the A900-PWR550-D uses a Euro-style terminal block.

Q: Which ASR 900 chassis does this power supply support?
A: It is supported in the ASR 902 and ASR 903 chassis. It is not compatible with the ASR 907 chassis.

Q: What DC input voltages does it accept?
A: The nominal DC input is +24 VDC, -48 VDC or -60 VDC, with an input voltage range of 19.2 to 72 VDC.

Q: Can I mix AC and DC power supplies in the same chassis?
A: Yes, AC and DC supplies can be mixed in one chassis. The module supports single-PSU operation or load-sharing with two or more PSUs.

Q: Can it be replaced while the router is running?
A: Yes, the module is field-replaceable and hot-swappable, and operates separately from the fan tray.

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