Cisco PWR-C1-715WDC/2 Full Official Product Description
1. Part Number & Naming Definition
Official Full Name
Cisco 715-Watt Hot-Swappable -48VDC Input Power Supply Module (Config 1, Secondary Commercial Variant)
SKU:PWR-C1-715WDC/2
Naming Breakdown
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PWR: Modular power supply unit
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C1: Config 1 unified form factor for Catalyst 3850 / Catalyst 9300 fixed switch chassis
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715W: Maximum rated DC output power of 715 Watts
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DC: Negative -48 VDC telecom direct current input
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/2: Secondary spare commercial variant, mechanically, electrically and firmware compatible with base PWR-C1-715WDC
Critical Note: Identical electrical specifications, pinout and physical dimensions to standard PWR-C1-715WDC. Fully plug-and-play interchangeable within supported chassis without hardware modification. AC and DC power suppliescannot be mixedin the same switch chassis.
Core Architecture
The PWR-C1-715WDC/2 is a hot‑swappable DC‑DC switching power module equipped with integrated temperature-controlled variable-speed cooling fan. It converts wide-range telecom -48 VDC input to regulated -56 VDC output to power switch mainboard, internal fan assemblies and medium-to-heavy PoE loads. It supports parallel 1+1 redundant deployment and automatic load sharing inside compatible switch chassis. Embedded protection circuits provide overvoltage (OVP), overcurrent (OCP), overtemperature (OTP) and short‑circuit auto‑recovery protection.
Deployment Guidance: Calculate total PoE power budget before deployment. This 715W PSU delivers sufficient power for IEEE 802.3af (PoE) and IEEE 802.3at (PoE+) powered endpoints. Always deploy matching DC power supplies for redundant configurations.
Core Product Positioning
The Cisco PWR-C1-715WDC/2 is a field-replaceable hot‑swappable DC power supply built for carrier, service provider and enterprise networks using standard telecom -48VDC power infrastructure. Suitable as primary or redundant power source for PoE-enabled Catalyst switch deployments. Dual PSU installation eliminates single point of failure and enables live power module replacement without switch shutdown. Widely deployed in carrier POP sites, remote branch offices and enterprise environments with DC power distribution systems.
2. Hardware & Software Compatibility
Supported Host Platforms
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Cisco Catalyst 3850 Series fixed-port switches (all PoE and non-PoE variants)
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Cisco Catalyst 9300 modular switches (all PoE+ and non-PoE models)
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Cisco Catalyst 9300X modular switches
Unsupported Platforms
C9200 / C9200L, C9300L, Catalyst 3650, Catalyst 9400/9500, Meraki MS series, ISR routers, ASA firewalls and all non‑C1‑config chassis. AC and DC power supplies cannot coexist in one chassis.
3. Electrical & Physical Specifications
Electrical Ratings
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Input Voltage Range: -36 VDC ~ -72 VDC (nominal -48 VDC telecom input)
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Input Current: Maximum 16 A @ -36 VDC / <8 A @ -72 VDC
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Input Terminals: Screw terminal block for DC wiring
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DC Output: -56 VDC, maximum 12.8 A (715 W)
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Minimum Hold-up Time: ≥16.7 ms
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Cooling: Integrated temperature-controlled variable speed fan
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Protection: OVP, OCP, OTP, short-circuit automatic recovery
Physical Specifications
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Dimensions (H × W × D): 40.1 × 82.6 × 309.9 mm (1.58 × 3.25 × 12.20 inch)
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Approximate Unit Weight: 1.3 kg (2.8 lb)
Environmental Specifications
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Operating Temperature: -5 °C ~ +45 °C
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Storage Temperature: -40 °C ~ +70 °C
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Operating Humidity: 5% – 95% non‑condensing
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Maximum Operating Altitude: 3048 m (10,000 ft)
4. Supported Functional Capabilities
Power System Functions
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Online Insertion and Removal (OIR) hot-swap capability
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Parallel 1+1 redundant power mode and dynamic load sharing
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Real-time PSU health monitoring via IOS-XE CLI, SNMP and Cisco DNA Center
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Dynamic fan speed adjustment based on internal ambient temperature
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Fault alert reporting for overheating, power loss and hardware faults
Platform Feature Compatibility
Supports StackPower power pooling function when installed within stacked Catalyst 3850 / C9300 switch systems. Fully compatible with all native Layer 2 / Layer 3 switching functions of supported host platforms.
5. Typical Deployment Scenarios
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Primary or redundant DC power supply for PoE/PoE+ Catalyst 3850 / C9300 access switches
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Service provider POP, carrier and remote sites equipped with telecom -48VDC power plants
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Networks deploying multiple PoE wireless APs, IP phones and IP surveillance cameras
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Mission-critical switching requiring zero-downtime hot replacement of power modules
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Industrial and remote branch environments with DC power distribution infrastructure
6. Regulatory & Compliance Certifications
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Safety: UL 60950-1, IEC 60950-1
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EMC: CE, FCC Part 15 Class A, ICES-003 Class A
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Environmental: RoHS compliant
7. Standard Factory Package Contents
1 × Cisco PWR-C1-715WDC/2 DC power supply module
Hardware installation documentation
DC power wiring, lugs and cables sold separately.
Model Comparison Reference
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PWR-C1-715WDC/2: 715W Config 1 -48VDC input power supply, secondary commercial variant
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PWR-C1-715WDC: Base standard 715W DC power supply, electrically identical
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PWR-C1-440WDC: Lower capacity 440 Watt DC-input Config 1 PSU
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PWR-C1-715WAC / PWR-C1-715WAC-P: Equivalent wattage AC power supply variants
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PWR-C1-350WAC / PWR-C1-350WAC-P: 350W lower-capacity Config 1 AC power modules
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PWR-C1-1100WAC-P: 1100W Platinum AC PSU for high-density UPOE deployments
UNSPSC Classification Code
43211702 – Network equipment internal power supply module
Hardware Warranty
Genuine Cisco original hardware carries Cisco standard one-year hardware warranty. Refurbished units follow respective supplier warranty terms.
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