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WS-C2955T-12
Cisco WS-C2955T-12 Catalyst 2955 12-Port Fast Ethernet DIN R...
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WS-C2955T-12 is a fanless, managed Layer 2 industrial switch with twelve 10/100 Mbps access ports and two fixed 10/100/1000BASE-T copper uplinks. DIN-rail mounting accommodates industrial control enclosures, while the non-PoE interfaces connect separately powered endpoints. The Catalyst 2955 runs Cisco IOS and serves Ethernet-connected controllers, HMI stations, and other industrial devices. Copper uplinks connect directly to compatible upstream interfaces without optical transceiver selection. The discontinued WS-C2955C-12 instead uses two 100BASE-FX multimode fiber uplinks. This copper-uplink industrial switch maintains an Ethernet edge for an existing automation network; endpoint power and routed connectivity remain functions of other equipment. Its fixed interfaces make the installed cabling arrangement an important part of replacement selection.
WS-C2955T-12 price for new stock is is available on request. Get immediate quote. WS-C2955T-12 refurb price is $838.95.
Request bulk order quote for WS-C2955T-12 for additional pricing. Browse the full Cisco 2955 Catalyst Switches series or explore all Cisco products.
13.6 Gbps switching capacity defines the switching fabric ceiling, while 6.4 Gbps maximum forwarding bandwidth sets the aggregate forwarding limit for the copper-uplink configuration. 4.8 Mpps forwarding at a 64-byte packet size establishes the small-packet processing ceiling. 23W maximum consumption must be included when sizing the external DC source alongside other cabinet loads. WS-C2955T-12 carries 32 MB of DRAM and 16 MB of flash for software and configuration storage. An 8 MB shared memory architecture serves the interfaces, and the address table supports 8000 MAC entries. STP/RSTP/MSTP provide Layer 2 loop control; LACP and PAgP support link aggregation. IGMP snooping restricts multicast delivery to participating ports. Management access includes console CLI, SSH, Telnet, a browser interface, and SNMP-based tools. Port security controls endpoint access, while TACACS+ or RADIUS authentication controls administrative access. Layer 2 switching does not provide inter-VLAN IP routing, so routed connections require separate equipment.
WS-C2955T-12 is offered new sealed or certified refurbished. Certified refurbished units are inspected and bench-tested for power-on and POST, every port linking at rated speed, and clean boot; firmware is verified and configurations are wiped to factory default. ORM's new-unit warranty is up to 3-year extended, certified refurbished coverage is up to 1 year, and returns are 30 days on every condition, terms apply; Cisco service ended July 31, 2018. Specify condition, quantity, and accessory scope for the order; enterprise and volume orders support PO acceptance, Net-30 for government, and RMA with advance replacement, with regional stock and RMA in the UK, EU, US, and MEA.
| Key Specs | Key Spec Values |
|---|---|
Operating System | Cisco IOS |
Port Configuration | 12 x 10/100 / 2 x 1G copper uplinks |
Max Power Draw | 23W |
Cooling | Fanless |
Lifecycle Status | End of sale August 1, 2013 |
When existing control cabinets send switch alarms to a PLC or HMI, the Catalyst 2955 provides two normally open relay outputs for port, power, or temperature events. Specify the required alarm behavior and confirm the cabinet's external signaling connections before adding replacement units to the purchase order.
When multiple sites retain a shared browser-based management workflow, Cisco CMS can group 16 Catalyst switches under one IP address. Catalyst 2955 units can act as command or member switches. Identify the intended management role and configuration baseline before specifying quantities for the purchase order.
When a replacement must preserve control-traffic priorities, the Catalyst 2955 offers four hardware egress queues per port with WRR or strict-priority scheduling. Stage the intended classification, policing, and queue settings against representative traffic, then specify the configuration baseline required for the units on the purchase order.
Gigabit speeds on every access port
The twelve access ports are limited to 10/100 Mbps. Gigabit speeds are available only on the two copper uplinks, not throughout the endpoint port bank.
Direct optical uplink connections
The uplinks use fixed copper RJ-45 interfaces; no optical cages or removable uplink cards are present. This model cannot terminate an existing fiber uplink directly.
Active Cisco hardware service coverage
Cisco service ended July 31, 2018. This model cannot satisfy a requirement for active Cisco hardware support, regardless of the condition supplied on an ORM order.
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| WS-C2955T-12 |  WS-C2955S-12 |  WS-C2955C-12 |  SG500X-48P |  CBS110-8T-D-EU | |
|---|---|---|---|---|---|
| Depth | 127.8 mm | 128 mm | 128 mm | 15 inches | 104 mm |
| Ethernet Technology | Fast Ethernet | Fast Ethernet | Fast Ethernet | 10/100/1000 | Gigabit Ethernet |
| Form Factor | DIN Rail Mount | DIN Rail Mount | DIN Rail Mount | Rack-mount | Desktop |
| Height | 96 mm | 96 mm | 96 mm | 1.75 inches | 30 mm |
| Manufacturer Part Number | WS-C2955T-12 | WS-C2955S-12 | WS-C2955C-12 | SG500X-48P | CBS110-8T-D-EU |
| Power Consumption | 23W | 23W | 23W | 300W | 4.33W |
| Switching Capacity | 13.6 Gbps | 13.6 Gbps | 13.6 Gbps | 104 Gbps | 16 Gbps |
| Weight | 1.4 kg | 1.4 kg | 1.4 kg | 19 lbs | 0.43 kg. |
| Width | 205 mm | 205 mm | 205 mm | 17.5 inches | 160 mm |
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New products are backed by up to 3 years of extended warranty, and certified refurbished units by up to 3 months, for dependable protection on every order. Coverage is clear, honoured in full, and confirmed on each product page.
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Every device is inspected, bench-tested, and firmware-verified, with configurations wiped before dispatch. Additional testing can be arranged to confirm full working condition on request.
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WS-C2955T-12 identifies a Catalyst 2955 switch with twelve 10/100 access ports and two 10/100/1000BASE-T uplinks. WS-C forms the ordering prefix, 2955 names the series, T identifies the copper-uplink variant, and -12 denotes the access-port count. The two uplinks are additional to those twelve access ports.
Catalyst 2955 is managed through the Cisco CMS web interface, console CLI, SSH, Telnet, and SNMP-based tools such as CiscoWorks. These interfaces provide configuration and monitoring access rather than changing the physical port arrangement. Define the permitted access methods and administrative credentials when staging a replacement.
WS-C2955T-12 is discontinued: the Catalyst 2955 reached end of sale on August 1, 2013, and its last date of support was July 31, 2018. Cisco service has ended. A hardware purchase does not extend those milestones, so support arrangements must be considered separately when ordering legacy spares.
ORM Systems offers WS-C2955T-12 new sealed or certified refurbished, with up to 3-year extended warranty on new units and up to 1 year on refurbished units. Returns are 30 days for either condition; terms apply. Cisco's original limited five-year hardware warranty has ended: Cisco support ended July 31, 2018.
WS-C2955T-12 has two fixed 10/100/1000BASE-T copper uplinks with RJ-45 connectors and a maximum link speed of 1 Gbps. The uplinks do not require optical transceivers or an uplink card. Confirm the copper cabling and upstream interface when specifying a replacement; this variant has no SFP uplink cages.
WS-C2955T-12 uses external 24V DC power and provides two redundant DC inputs. PWR-2955-AC= is the optional DIN-rail AC-to-DC converter for an AC-powered installation. The switch consumes a maximum of 23W. Specify the external power arrangement and required accessories rather than assuming an internal AC supply is included.
WS-C2955T-12 can be installed in an equipment rack using the optional STK-RACKMNT-2955= DIN-rail adapter. The chassis itself is DIN-rail hardware, not a full-width rack switch. Confirm the mounting arrangement before ordering, and include STK-RACKMNT-2955= when the existing installation requires the rack adapter rather than direct DIN-rail mounting.
WS-C2955T-12 has two Gigabit-capable copper uplinks, whereas WS-C2955C-12 has two 100BASE-FX multimode fiber uplinks. Both models are discontinued. The T variant suits an existing copper-uplink installation; the C variant corresponds to a retained Fast Ethernet multimode-fiber connection rather than a Gigabit copper connection.
Catalyst 2955 provides four hardware egress queues per port with WRR and strict-priority scheduling. Ingress policing supports six policers per Fast Ethernet port and 60 per Gigabit Ethernet port. These controls permit traffic classification, rate enforcement, and output scheduling; preserve the intended queue and policing settings when staging a replacement.
No, Catalyst 2955 switches do not form a hardware stack; Cisco CMS instead manages a cluster of 16 switches through one IP address. A Catalyst 2955 can serve as a command or member switch. Management clustering groups configuration access but does not add dedicated stacking interfaces or stack bandwidth.
No, WS-C2955T-12 provides Layer 2 switching rather than inter-VLAN IP routing. VLAN separation, spanning-tree control, multicast snooping, and traffic prioritization operate within that switching role. Specify a separate routing device when traffic must cross IP subnets; management access does not turn this model into a Layer 3 switch.
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