C9300-48UN-A – 48x 5G Multigigabit UPOE Ports – Modular Uplink – 645W PoE Budget
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C9300-48UN-A Description
The C9300-48UN-A is a Cisco Catalyst 9300 Series stackable access switch for wiring closets that serve high-speed wireless access points and multigigabit endpoints over Cisco UPOE. The switch has 48 5G multigigabit UPOE ports, a modular uplink slot, a 645W default PoE budget and 640 Gbps of switching capacity. Up to eight units join a StackWise-480 stack, and the -A suffix carries Network Advantage, which adds BGP, VXLAN, MPLS and MACsec-256.
Quick Specs
|
Parameter |
Specification |
|---|---|
|
Product ID |
C9300-48UN-A |
|
Port layout |
48x 5G Multigigabit (5G/2.5G/1G/100M) UPOE copper |
|
PoE type |
Cisco UPOE |
|
Default PoE budget |
645W (single PWR-C1-1100WAC-P supply) |
|
Uplinks |
Modular uplink network module slot |
|
Network license |
Network Advantage |
|
Switching capacity |
640 Gbps standalone, 1,120 Gbps stacked |
|
Forwarding rate |
476.19 Mpps standalone, 833.33 Mpps stacked |
|
Stacking |
StackWise-480, up to 8 members, StackPower supported |
|
Default power supply |
PWR-C1-1100WAC-P (1100W AC) |
|
Minimum software release |
Cisco IOS XE Fuji 16.8.1a or later |
Product Performance
Key Features
Each port negotiates 5G, 2.5G, 1G or 100M on standard copper cabling, so a closet needs no split between multigigabit and gigabit port groups.
UPOE delivers up to 60W per port, which covers power-hungry access points and endpoints that exceed PoE+ limits.
The default 1100W supply leaves 645W for PoE, enough for about ten ports at the full 60W. A second supply lifts the budget to 2545W.
The -A suffix adds BGP, VXLAN, LISP, Cisco TrustSec, MPLS and MACsec-256 to the Layer 2 and routed access base, with no OSPF route limit.
The uplink slot takes C9300 network modules such as C9300-NM-8X for 10G, C9300-NM-2Y for 25G or C9300-NM-2Q for 40G, and the module can change later without replacing the switch.
Up to eight switches stack over StackWise-480, and StackPower cables let members share power headroom.
Application Scenarios
In a campus closet that feeds multigigabit Wi-Fi access points, every one of the 48 ports links at up to 5G over Cat 5E or better copper while also delivering UPOE.
A floor of displays, thin clients and IoT gateways that need Cisco UPOE draws from the 645W default budget, with a second supply available for heavier loads.
A stack of up to eight switches in a campus access layer can carry VXLAN and Cisco TrustSec segmentation to the edge, with StackPower sharing power between members.
Product Comparison
|
Parameter |
C9300-48UN-A | ||
|---|---|---|---|
|
Downlink ports |
48 x 5G/2.5G/1G/100M |
36 x 2.5G/1G/100M + 12 x 10G/5G/2.5G/1G/100M |
24 x 10G/5G/2.5G/1G/100M |
|
PoE type |
Cisco UPOE |
Cisco UPOE |
Cisco UPOE |
|
Available PoE power (default supply) |
645W |
490W |
560W |
|
Maximum PoE power (second supply) |
2880W |
2880W |
1440W |
|
Network license |
Network Advantage |
Network Advantage |
Network Advantage |
|
Stack bandwidth |
480 Gbps (StackWise-480) |
480 Gbps (StackWise-480) |
480 Gbps (StackWise-480) |
|
Switching capacity |
640 Gbps |
580 Gbps |
640 Gbps |
|
Forwarding rate |
476.19 Mpps |
431.54 Mpps |
476.19 Mpps |
C9300-48UN-A is the 48-port 5G Multigigabit UPOE model, with every port at up to 5G and a 645W default PoE budget, against C9300-48UXM-A, which has 36 ports at up to 2.5G, 12 Multigigabit ports up to 10G and a 490W budget. A closet that needs 10G on some ports and can run the rest at 2.5G or below fits C9300-48UXM-A. C9300-24UX-A halves the port count to 24 but takes every port to 10G, with a 560W default budget, which suits a few high-speed drops. A site that does not need VXLAN, Cisco TrustSec or MACsec-256 can order C9300-48UN-E and skip Network Advantage.
PoE Power Planning
|
Planning Item |
Value or Check |
|---|---|
|
PoE standard |
Cisco UPOE, 60W maximum per port |
|
Default power supply |
PWR-C1-1100WAC-P (1100W AC) |
|
Default PoE budget |
645W with the single default supply (Cisco datasheet Table 4 value; hardware installation guide shows conflicting 610W and 490W figures for this chassis, treat 645W as authoritative) |
|
Maximum PoE budget |
Up to 2545W with an added 1900W second supply (995W, 1360W or 1745W with a 350W, 715W or 1100W second supply); upgrading the primary supply to 1900W raises the budget to 1445W-2880W depending on secondary supply choice |
|
Second supply requirement |
Confirm endpoint power draw against the 645W default budget before assuming a second supply is unnecessary |
|
StackPower option |
Available on StackWise-480 stacks to share power headroom across member switches |
Ordering Checklist
- Subscription tier: Order an Advantage term: C9300-DNA-A-48-3Y, -5Y or -7Y. New orders need a subscription of the same tier as the Network Advantage license on the switch.
- Uplink module: Keep the default C9300-NM-8X, pick another C9300-NM module, or select C9300-NM-NONE. The uplink slot must hold a module or a blank; C9300X-NM modules do not fit a C9300 chassis.
- Second power supply: A second PWR-C1-1100WAC-P is selected by default and C9300-SPS-NONE removes it. Removing it leaves one supply, so there is no power redundancy and no added PoE headroom.
- Stack cables: The default 50 cm StackWise cable (C9300-STACK-NONE removes it) and 30 cm StackPower cable (C9300-SPWR-NONE removes it) ship on the order. A stack that needs longer or no cables must change these lines, or the cables ship anyway.
- Power cords: Select the cord type for the destination country. The configurator defaults to North America, and two cords ship with the switch.
Optional Add-ons
|
Model |
Description |
|---|---|
|
C9300-NM-4G / C9300-NM-4M / C9300-NM-8X / C9300-NM-2Q / C9300-NM-2Y |
Field-installable Catalyst 9300 uplink network modules confirmed for the C9300-48UN-A modular uplink bay. |
|
Cisco-confirmed second AC power supply option for the C9300-48UN-A power bay, the documented upgrade path from the default PWR-C1-1100WAC-P for extended PoE headroom. | |
|
StackWise-480 data stacking cables (0.5 m / 1 m / 3 m) for stacking additional Catalyst 9300 switches. | |
|
FAN-T2= |
Field-replaceable fan module spare for the standard three-fan N+1 redundant fan tray. |
C9300-48UN-A Switch Rear Panel
The switch rear panel includes StackWise connectors, StackPower or XPS connectors, ports, fan modules, and power supply modules.
Components Delivered in the Shipping Box
The shipping box contains the model of the switch you ordered and other components needed for installation. Some components are optional, depending on your order.
Specifications
| Parameter | Specification | Parameter | Specification |
|---|---|---|---|
| Product ID | C9300-48UN-A | Network license | Network Advantage |
| Port layout | 48x 5G Multigigabit (5G/2.5G/1G/100M) UPOE copper | PoE type | Cisco UPOE, 60W maximum per port |
| Default power supply | PWR-C1-1100WAC-P (1100W AC) | Default PoE budget | 645W with single default supply (Cisco datasheet Table 4) |
| Maximum PoE budget | Up to 2545W with added 1900W second supply; 1445W-2880W after primary supply upgrade to 1900W | Power supply slots | 2 internal bays, dual redundant supported, ships with 1 supply and a blank module |
| Switching capacity | 640 Gbps standalone, 1,120 Gbps stacked | Forwarding rate | 476.19 Mpps standalone, 833.33 Mpps stacked |
| MAC addresses | 32,000 entries | VLAN IDs | 4094 |
| IPv4 routes | 32,000 (24,000 direct + 8,000 indirect) | IPv6 routes | 16,000 |
| SVI total | 1000 | Jumbo frames | 9198 bytes |
| Stacking | StackWise-480, up to 8 members | StackPower | Supported for shared power redundancy across stack members |
| Uplinks | Modular uplink network module slot (no module included by default) | Compatible network modules | C9300-NM-4G, C9300-NM-4M, C9300-NM-8X, C9300-NM-2Q, C9300-NM-2Y |
| Management interfaces | 10/100/1000 Ethernet management port, RJ-45 console port, USB mini-Type B console port | Copper port connectors | RJ-45, 4-pair Cat 5E UTP (1000BASE-T) or Cat 5E/6/6A UTP (Multigigabit-T) |
| Fan modules | 3 field-replaceable fans, N+1 redundant, FAN-T2= spare, MTBF 4,521,330 hours | MTBF (chassis) | 198,647 hours |
| Peak power draw (100% PoE, with C9300-NM-8X) | 875.1W at 115Vac (standard and Platinum supply tests consistent) | Minimum software release | Cisco IOS XE Fuji 16.8.1a or later |
| Operating temperature | -5 to 45°C at or below 1500 m; up to 40°C at 3000 m | Storage temperature | -40 to 70°C |
| Operating humidity | 5 percent to 90 percent, non-condensing | Operating altitude | Up to 10,000 ft (3000 m) at up to 45°C |
| Acoustic noise | 45 dB LpA typical / 48 dB LpA max with 24 PoE+ ports at full load, AC power (family-level measurement) | Dimensions | 1.73 x 17.5 x 19.1 in chassis only; 1.73 x 17.5 x 22.2 in with default power supply |
| Weight | 9.09 kg (20.05 lb) | Safety certifications | UL 60950-1, CAN/CSA-C22.2 No. 60950-1, EN 60950-1, IEC 60950-1, AS/NZS 60950.1, IEEE 802.3 |
| EMC certifications | 47 CFR Part 15, EN 300 386, EN 55032 Class A, CISPR 32 Class A, ICES-003 Class A, and related regional EMC standards | Environmental compliance | RoHS 5 |
| Multigigabit duplex | Full duplex only, half duplex not supported |
Quality Certifications
Customer Reviews
Questions & Answers
-
Can C9300-48UN-A be stacked?
-
What does Network Advantage on C9300-48UN-A include?
-
How much power does a device receive from a Cisco UPOE port on C9300-48UN-A?
-
How many C9300-48UN-A switches can share power in a StackPower ring?
-
Does a C9300-DNA-A-48-5Y term for C9300-48UN-A include ThousandEyes?
-
Which Cisco Catalyst subscription PIDs match the Network Advantage license of C9300-48UN-A?
-
How large is the packet buffer on C9300-48UN-A?
-
What are the input and heat ratings of PWR-C1-1100WAC-P in C9300-48UN-A?
-
Can C9300-48UN-A use the PWR-C1-1900WAC-P power supply?
-
Does C9300-48UN-A keep PoE running during a reload?
-
How many routes and ACL entries does C9300-48UN-A support?
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