C9350-48S – 48x1G SFP Fiber Ports – Modular Uplink – StackWise-1.6T
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C9350-48S Description
The C9350-48S is a Cisco C9350 Series fiber access switch for campus closets that terminate Gigabit fiber runs instead of copper. All 48 downlinks are 1G SFP ports, backed by 496 Gbps of switching on a single Silicon One A100/L ASIC and a modular uplink slot that reaches 200G. The ports carry no PoE, and the switch needs Cisco IOS XE 26.1.2 or later.
Quick Specs
|
Parameter |
Specification |
|---|---|
|
Product ID |
C9350-48S |
|
Downlink ports |
48 x 1G SFP |
|
ASIC |
1 x Cisco Silicon One A100/L |
|
Network module slot |
1 modular uplink slot, up to 200G |
|
Supported network modules |
C9350-NM-2C, C9350-NM-8Y, C9350-NM-8M |
|
Switching capacity |
496 Gbps |
|
Forwarding rate |
369.024 Mpps |
|
Stacking |
StackWise-1.6T, 1.6 Tbps, up to 8 members |
|
Default power supply |
PWR-C2-500WAC-I 500W AC |
|
Power supply slots |
3 |
|
Network license |
Essentials or Advantage, Access Tier 1 Large subscription |
|
Minimum software release |
Cisco IOS XE 26.1.2 |
Product Performance
Key Features
Every downlink is an SFP port running at 1G, which puts the access links on fiber rather than copper. Each port takes its own 1G optic, and that optic decides the reach and fiber type of the link.
The slot takes C9350-NM-2C for two 100G/40G QSFP28 ports, C9350-NM-8Y for eight 25G/10G/1G or four 50G SFP56 ports, or C9350-NM-8M for eight Multigigabit copper ports. Uplink bandwidth reaches 200G, and every module is hot-swappable, so the uplink type can change while the switch stays in service.
StackWise-1.6T joins up to eight C9350 switches at 1.6 Tbps, and fiber and copper models can sit in the same stack. A closet can pair this switch with Multigigabit PoE models for users and access points and run them as one system, provided every member carries the same license level.
A single Silicon One A100/L ASIC switches 496 Gbps and forwards 369.024 Mpps. That covers all 48 ports at 1G plus a full 200G uplink in both directions, with 18 MB of packet buffer behind it.
The default 500W supply occupies one of three hot-swappable bays. With no PoE to feed, extra supplies serve redundancy: in N+1 mode the switch keeps running through a supply failure, and supplies of different wattage can share the chassis.
With auto-off enabled, the switch checks the fiber ports for SFPs on a regular basis and powers the SerDes only where a module is present. Ports left empty for later expansion save energy, and the port LEDs can likewise stay depowered until a link event.
Application Scenarios
In a campus distribution closet, fiber runs from access closets on other floors land on the 48 SFP ports, and a 100G uplink module carries the combined traffic to the core.
Production areas in an industrial plant reach the switch over fiber, which keeps electrical noise from motors and drives off the network links.
A campus with warehouses, labs or other outbuildings can bring a dedicated fiber link from each building back to one switch in the main building.
Product Comparison
|
Parameter |
C9350-48S | |||
|---|---|---|---|---|
|
Downlink ports |
48 x 1G SFP |
24 x 1G SFP |
48 x 10M/100M/1G RJ-45 |
24 x 1G/10G/25G SFP28 |
|
PoE support |
No PoE |
No PoE |
No PoE |
No PoE |
|
Network module slot |
Up to 200G |
Up to 200G |
Up to 200G |
Up to 400G |
|
Network license |
Essentials or Advantage, Large (48 ports) tier |
Essentials or Advantage, Medium (up to 24 ports) tier |
Essentials or Advantage, Large (48 ports) tier |
Essentials or Advantage, Medium (up to 24 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 |
496 Gbps |
448 Gbps |
496 Gbps |
2,000 Gbps |
C9350-48S and C9350-48T share 48 Gigabit downlinks, 496 Gbps of switching and a 200G uplink slot, but C9350-48S takes 1G SFP fiber where C9350-48T has 10M/100M/1G RJ-45 copper. The cabling at the far end decides between them. Sites with 24 or fewer fiber drops can use C9350-24S, which switches 448 Gbps and takes the Medium (up to 24 ports) subscription tier instead of the Large one. Fiber links that must run at 10G or 25G need C9350-24Y, with 24 SFP28 ports, 2,000 Gbps of switching and a 400G uplink slot.
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. An Essentials order also needs license boot level essentials set and a reload.
- Uplink module: Add C9350-NM-2C, C9350-NM-8Y or C9350-NM-8M as its own line. The switch ships with an empty slot, and C9350-NM-4C and C9350-NM-8L are not supported on this model.
- SFP optics: Add a 1G SFP transceiver for every downlink that will carry a link. The switch comes with its 500W supply, an RFID module and two 19-inch rack brackets, but no optics.
- Additional power supplies: Add PWR-C2-500WAC-I/2, PWR-C2-850WAC-I/2 or PWR-C2-1600WAC-I/2 when the switch needs supply redundancy. Only the default supply ships, and a 1600W supply makes the switch 21.1 in. (53.6 cm) deep instead of 17.9 in. (45.6 cm).
- Stacking cables: Select STACK-T1A-50CM, STACK-T1A-1M or STACK-T1A-3M= for the data stack and add CAB-SPWR-35CM or CAB-SPWR-100CM StackPower+ cables only for power sharing. None ships by default, and Catalyst 9300 stack and StackPower cables are not compatible with C9350 switches.
- Power cords: Choose one cord per supply for the destination country, such as CAB-TA-NA, CAB-TA-EU or CAB-TA-UK for a 500W or 850W supply and C9K-PWR-CAB-AC-US for a 1600W supply. Cords are not bundled with the supplies.
- HSECK9 for IPsec: IPsec needs OS Advantage, Cisco IOS XE 26.2.1 or later 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-C2-500WAC-I/2 |
500W AC Platinum secondary power supply |
|
PWR-C2-850WAC-I/2 |
850W AC Platinum secondary power supply |
|
PWR-C2-1600WAC-I/2 |
1600W AC secondary power supply |
|
PWR-C2-500WAC-I= |
500W 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 | C9350-48S | Product type | Stackable fiber access switch |
| Network license | Switching Essentials or Switching Advantage | Minimum software release | Cisco IOS XE 26.1.2 |
| Downlink ports | 48 x 1G SFP | Network module slot | 1, up to 200G |
| Supported network modules | C9350-NM-2C, C9350-NM-8Y, C9350-NM-8M | Console port | USB Type-C and RJ-45 |
| Management port | RJ-45 10/100/1000 | USB port | USB Type-C |
| Switching capacity | 496 Gbps | Forwarding rate | 369.024 Mpps |
| Switching capacity with stacking | 2,096 Gbps | Forwarding rate with stacking | 1,559.424 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-C2-500WAC-I 500W AC | Power supply slots | 3, hot-swappable |
| Power redundancy | Combined (default) or N+1 redundant | Power connector | AC IEC 60320 C16 |
| Energy efficiency | Auto-off SerDes on SFP ports without a module; auto-off port LEDs | 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 17.9 in. (4.4 x 44.5 x 45.6 cm) with 500W or 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 | 312,100 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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