• Cisco A900-PWR550-D ASR 900 550W DC power supply unit
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Cisco

Cisco A900-PWR550-D | ASR 900 550W DC Power Supply, Euro Terminal Block

A900-PWR550-D

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Description

The 550W DC power supply module for the Cisco ASR 900 Series aggregation routers delivers 12 V output and is compatible with the ASR 902 and ASR 903 chassis. It is hot-swappable, can operate alone or load-share with other supplies for redundancy, and connects through a Euro-style three-position terminal block connector. This variant is distinct from the A900-PWR550-D-E, which uses a T-shaped enhanced connector.

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

Features

- Field replaceable and hot-swappable, operates separately from the fan tray
- Redundancy and load-sharing: up to 2 power supplies in ASR 902 and up to 3 in ASR 903
- System can run on a single power supply
- Mixing of AC and DC power supplies in one chassis is supported
- Front panel with mounting screws, insertion/removal handle and two status LEDs
- No ON/OFF switch

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 voltage
- DC input: +24V / -48V / -60V nominal, 19.2 VDC minimum to 72 VDC maximum
- Euro-style three-position terminal block connector
- Wire gauge: 10 AWG minimum for -48/-60 VDC; 8 AWG minimum for 24 VDC; connector accepts 8 AWG maximum
- MTBF 300,000 hours at 40°C
- Dying Gasp supported
- Compatible with ASR 902 and ASR 903; not compatible with ASR 907
- Operating temperature -40 to 65°C (-40 to 149°F) with 550W DC power supply in ASR 902
- With A900-RSP3C-400-S RSPs only if power consumption is within 550 W (A900-PWR1200-D recommended)

FAQs

Q: Which chassis is the A900-PWR550-D compatible with?
A: It is compatible with the Cisco ASR 902 and ASR 903 chassis. It is not compatible with the ASR 907.

Q: How does this differ from the A900-PWR550-D-E?
A: Both are 550W DC supplies. The A900-PWR550-D uses a Euro-style three-position terminal block connector, while the A900-PWR550-D-E uses a T-shaped enhanced connector.

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

Q: Can it be used for redundancy or mixed with AC supplies?
A: Yes. Up to 2 supplies are supported in an ASR 902 and up to 3 in an ASR 903 for redundancy and load-sharing, and AC and DC supplies can be mixed in the same chassis.

Q: What wire gauge is required for the DC input?
A: Use a minimum of 10 AWG for -48/-60 VDC and a minimum of 8 AWG for 24 VDC. The connector accepts a maximum of 8 AWG.

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