C9350-48HM – 48×2.5G mGig UPOE+ Ports – Modular Uplink – 570W PoE Budget
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C9350-48HM Description
The C9350-48HM is a Cisco C9350 Series Smart Switch for 48-port campus closets moving from 1G to 2.5G access on their existing copper. All 48 Multigigabit ports run from 10M to 2.5G with up to 90W of UPOE+, and one ASIC switches 640 Gbps behind a 200G uplink slot. The default 850W supply sets aside 570W for PoE, and the minimum software release is Cisco IOS XE 26.2.1.
Quick Specs
|
Parameter |
Specification |
|---|---|
|
Product ID |
C9350-48HM |
|
Downlink ports |
48 x 10M/100M/1G/2.5G Multigigabit RJ-45 |
|
PoE standards |
UPOE+ (IEEE 802.3bt Type 4), 90W on all 48 ports |
|
Default power supply |
PWR-C2-850WAC-I 850W AC |
|
Default PoE budget |
570W |
|
PoE budget with three 1600W supplies |
4320W on 200–240V input |
|
Power supply slots |
3 |
|
Network module slot |
1 modular uplink slot, up to 200G |
|
Supported network modules |
C9350-NM-2C, C9350-NM-8Y, C9350-NM-8M |
|
Switching capacity |
640 Gbps |
|
Stacking |
StackWise-1.6T, 1.6 Tbps, up to 8 members |
|
Network license |
Essentials or Advantage, Access Tier 1 Large subscription |
|
Minimum software release |
Cisco IOS XE 26.2.1 |
Product Performance
Key Features
Six ports can draw the full 90W on the default 850W supply, which leaves 570W for PoE, or about 12W per port if all 48 draw at once. Heavier powered loads call for a second or third supply.
Every downlink negotiates 10M, 100M, 1G or 2.5G. All four speeds run over Cat5e at the full 100 m.
A single Silicon One A100/L ASIC switches 640 Gbps and forwards 476.16 Mpps with 18 MB of packet buffer. That is the full load of 48 ports at 2.5G plus a 200G uplink, counted in both directions.
Application Scenarios
On an open office floor with closely spaced Wi-Fi 6E and Wi-Fi 7 access points, each access point links at 2.5G and takes its power from a UPOE+ port on the floor switch.
Desk areas connect their IP phones to the same closet switch as the access points, and each phone draws power from the port that carries its traffic.
In buildings that keep their existing copper cabling, next-generation endpoints that need more than 1 Gbps link at 2.5G without new horizontal runs.
Product Comparison
|
Parameter |
C9350-48HM | |||
|---|---|---|---|---|
|
Downlink ports |
48 x 10M-2.5G Multigigabit |
48 x 10M-10G Multigigabit |
12 x 10G and 36 x 5G Multigigabit |
48 x 10M/100M/1G |
|
PoE standards |
90W UPOE+ (802.3bt Type 4) |
90W UPOE+ (802.3bt Type 4) |
90W UPOE+ (802.3bt Type 4) |
60W UPOE (802.3bt Type 3) |
|
Default power supply |
PWR-C2-850WAC-I |
PWR-C2-1600WAC-I |
PWR-C2-850WAC-I |
PWR-C2-850WAC-I |
|
Default PoE budget |
570W |
1150W |
470W |
625W |
|
Maximum PoE budget |
4320W |
4320W |
4320W |
2880W |
|
Network module slot |
Up to 200G |
Up to 400G |
Up to 200G |
Up to 200G |
|
Network license |
Essentials or Advantage, Large (48 ports) tier |
Essentials or Advantage, Large (48 ports) tier |
Essentials or Advantage, Large (48 ports) tier |
Essentials or Advantage, Large (48 ports) tier |
|
Stacking |
StackWise-1.6T, 1.6 Tbps |
StackWise-1.6T, 1.6 Tbps |
StackWise-1.6T, 1.6 Tbps |
StackWise-1.6T, 1.6 Tbps |
|
Switching capacity |
640 Gbps |
1,760 Gbps |
1,000 Gbps |
496 Gbps |
C9350-48HM differs from C9350-48HX in port speed: C9350-48HM stops at 2.5G per port, 640 Gbps of switching and 200G of uplink, while the dual-ASIC model reaches 10G, 1,760 Gbps and 400G. Floors whose access points need 5G or 10G links move to C9350-48HX. C9350-48HXN fits when 12 ports at 10G and 36 at 5G are enough, though its default 850W supply leaves 470W of PoE against 570W here. Closets of 60W devices on 1G links can drop to C9350-48U, which caps PoE at 2880W and switches 496 Gbps.
PoE Power Planning
|
Planning Item |
Value or Check |
|---|---|
|
PoE standard |
UPOE+ (IEEE 802.3bt Type 4), up to 90W per port on all 48 ports |
|
Default power supply |
PWR-C2-850WAC-I (850W AC) |
|
Default PoE budget |
570W: 6 ports at 90W, 9 ports at 60W, or 19 ports at 30W; total each device class times its port count and compare it with the budget of the chosen supplies |
|
With a second 500W, 850W or 1600W supply |
1070W, 1420W or 2170W |
|
Three supplies on the 850W primary |
Up to 3770W, with two added 1600W supplies |
|
1600W primary in place of the 850W unit |
1320W alone; 1820W, 2170W or 2920W with a second 500W, 850W or 1600W supply |
|
60W on all 48 ports |
2880W: a 1600W primary with a second 1600W supply gives 2920W; on the 850W primary it takes three supplies, such as 850W + 850W + 1600W at 3020W |
|
90W on all 48 ports |
4320W, reached only with three 1600W supplies |
|
Input voltage |
Budgets that include a 1600W supply assume 200–240V input; on 115V each 1600W supply delivers 1200W |
Ordering Checklist
- Subscription tier: Order the Access Tier 1 Large (48 ports) subscription, LIC-CS-AC1-L-E for Essentials or LIC-CS-AC1-L-A for Advantage, for at least 36 months. Every member of a stack must run the same license level.
- Uplink module: Add C9350-NM-2C, C9350-NM-8Y or C9350-NM-8M as its own line. The base switch ships without a module, and C9350-NM-4C and C9350-NM-8L are not supported on it.
- Primary and additional supplies: Replace the default 850W unit with PWR-C2-1600WAC-IUP and add two PWR-C2-1600WAC-I/2 when all 48 ports must deliver 90W on 200–240V input. Without added supplies the PoE budget stays at 570W.
- Stacking cables: Select STACK-T1A-50CM, STACK-T1A-1M or STACK-T1A-3M= for a data stack, and CAB-SPWR-35CM or CAB-SPWR-100CM only for StackPower+. No stack cables are included, and Catalyst 9300 stack cables are not compatible.
- Power cords: Select one cord per supply: CAB-TA cords such as CAB-TA-NA fit the 500W and 850W units, and C9K-PWR-CAB-AC cords such as C9K-PWR-CAB-AC-US fit 1600W units. The default 850W unit with added 1600W supplies needs both cord families.
- HSECK9 for IPsec: IPsec needs OS Advantage and one HSECK9 per switch, every stack member included. Give Cisco the Smart Account and Virtual Account at order so SLAC is factory-installed; Catalyst Center cannot generate SLAC for this series.
Optional Add-ons
|
Model |
Description |
|---|---|
|
Cisco C9350 network module, 2 x 100G/40G QSFP28, up to 200 Gbps | |
|
Cisco C9350 network module, 8 x 25G/10G/1G or 4 x 50G SFP56, up to 200 Gbps | |
|
C9350-NM-8M |
Cisco C9350 network module, 8 x Multigigabit RJ-45, up to 80 Gbps |
|
PWR-C2-1600WAC-IUP |
1600W AC Titanium primary power supply upgrade |
|
PWR-C2-1600WAC-I/2 |
1600W AC secondary power supply |
|
PWR-C2-850WAC-I/2 |
850W AC Platinum secondary power supply |
|
PWR-C2-500WAC-I/2 |
500W AC Platinum secondary power supply |
|
PWR-C2-850WAC-I= |
850W AC Platinum power supply, spare |
|
StackWise-1.6T stacking cable, 50 cm | |
|
StackWise-1.6T stacking cable, 1 m | |
|
StackWise-1.6T stacking cable, 3 m | |
|
CAB-SPWR-35CM |
StackPower+ cable, 35 cm |
|
CAB-SPWR-100CM |
StackPower+ cable, 100 cm |
|
C9350-FAN-I= |
C9350 port inlet fan module, spare |
Specifications
| Parameter | Specification | Parameter | Specification |
|---|---|---|---|
| Product ID | C9350-48HM | Product type | Stackable enterprise access switch |
| Network license | Switching Essentials or Switching Advantage | Minimum software release | Cisco IOS XE 26.2.1 |
| Downlink ports | 48 x 10M/100M/1G/2.5G Multigigabit RJ-45 | Network module slot | 1, up to 200G |
| Supported network modules | C9350-NM-2C, C9350-NM-8Y, C9350-NM-8M | Copper cabling | Up to 2.5G on Cat5e at 100 m |
| Console port | USB Type-C and RJ-45 | Management port | RJ-45 10/100/1000 |
| USB port | USB Type-C | Switching capacity | 640 Gbps |
| Forwarding rate | 476.16 Mpps | Switching capacity with stacking | 2,240 Gbps |
| Forwarding rate with stacking | 1,666.56 Mpps | Packet buffer | 18 MB (1 ASIC) |
| ASIC | 1 x Cisco Silicon One A100/L | DRAM | 16 GB |
| Flash | 18 GB | SSD storage | Up to 240 GB (USB 3.0 SSD slot) |
| App hosting resources | 2 x 1G/10G AppGig ports; 4 vCPU; 8 GB DRAM | MAC addresses | Up to 64,000 |
| VLAN IDs | 4,094 | Active VLANs | Up to 4,000 |
| Switched virtual interfaces | Up to 4,000 | PVST instances | Up to 1,000 |
| IPv4 routes | Up to 192,000 | IPv6 routes | Up to 96,000 |
| ARP entries | Up to 64,000 | NDP entries | Up to 32,000 |
| Multicast routes | Up to 8,000 (IPv4) / 4,000 (IPv6) | IGMP snooping groups | Up to 8,000 IGMP / 4,000 MLD |
| ACL entries | Up to 5,000 (IPv4) / 2,500 (IPv6) | QoS entries | Up to 2,000 (IPv4) / 1,000 (IPv6) |
| Flexible NetFlow entries | Up to 64,000 (IPv4) / 32,000 (IPv6) | Jumbo frames | 9,216 bytes |
| Stacking | StackWise-1.6T, 1.6 Tbps, up to 8 C9350 members | StackPower | StackPower+ 55V power sharing, up to 4 switches per ring |
| Management features | Cisco Catalyst Center or Meraki Dashboard | Default power supply | PWR-C2-850WAC-I 850W AC |
| Power supply slots | 3, hot-swappable | Power redundancy | Combined (default) or N+1 redundant |
| Power connector | AC IEC 60320 C16 | Default PoE budget | 570W |
| PoE budget with other supplies | 1070W / 1420W / 2170W with second 500W / 850W / 1600W supply; up to 3770W with three supplies; 1320W to 4320W on a 1600W primary; 1600W figures on 200–240V input | PoE standards | UPOE+ (IEEE 802.3bt Type 4), 90W per port on all 48 ports |
| Fan modules | 3 field-replaceable, N+1 redundant, rear access | Airflow | Front to back |
| Dimensions (H x W x D) | 1.73 x 17.5 x 16.5 in. (4.4 x 44.5 x 42 cm) with 850W supply | Operating temperature | -5°C to 45°C up to 1,830 m (6,000 ft); -5°C to 40°C up to 3,000 m (10,000 ft) |
| Cold start temperature | 0°C | Storage temperature | -40°C to 75°C |
| Operating humidity | 10% to 95%, noncondensing | Operating altitude | Up to 3,000 m (10,000 ft) |
| Storage altitude | Up to 4,500 m (15,000 ft) | MTBF | 249,390 hours |
| Safety certifications | IEC 60950-1, EN 60950-1, IEC 62368-1, UL 60950-1, UL 62368-1, AS/NZS 60950.1, CAN/CSA-C22.2 No. 60950-1-07, CAN/CSA-C22.2 No. 62368-1-14, GB 4943, NOM-019-SCFI | EMC certifications | 47 CFR Part 15 Class A, EN 55032 Class A, CISPR 32 Class A, EN 55024, CISPR 24, EN 300 386, EN 61000-3-2, EN 61000-3-3, ICES-003 Class A, CNS13438 Class A, KN 32 Class A, KN 35, TCVN 7189 Class A, TCVN 7317, V-2/V-3 Class A |
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