Shop Cisco Catalyst 8000 router modules and cards for Catalyst 8200, 8200L, and 8300 edge platforms. Compare C-NIM WAN, LAN/WAN, SFP+, mGig RJ45, MACsec, and PoE module options, including C-NIM-1M, C-NIM-1X, C-NIM-2T, C-NIM-4X, C-NIM-8M, and C-NIM-8T.
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1×2.5G RJ-45 WAN – UPOE+ 90W – Catalyst 8000
1-Port 1G/10G SFP+ WAN Module – Catalyst 8000
2x100M/1G RJ45/SFP – Catalyst 8200/8300 WAN NIM – MACsec
4×1G/10G SFP/SFP+ Ports – Catalyst 8000
8×2.5G RJ-45 mGig – Four 90W UPOE+ Ports – Catalyst 8000
8×1G RJ45 LAN/WAN Ports – Catalyst 8000
16x RS-232 Async Ports – Single-Wide NIM
1-Port Serial WAN – Smart Serial NIM – 8 Mbps
24x RS-232 Async Ports – Single-Wide NIM
2-Port Serial WAN – Smart Serial NIM – 8 Mbps
4-Port Serial WAN – Smart Serial NIM – 8 Mbps
128-Channel Voice DSP – NIM Slot – IP Media Services
For IP voice DSP resources, choose a NIM-PVDM module such as NIM-PVDM-32, NIM-PVDM-64, NIM-PVDM-128, or NIM-PVDM-256. These modules are used for voice media services such as conferencing, transcoding, media optimization, and secure voice. If you need analog phone ports, fax ports, FXO, FXS, E/M, or BRI interfaces, you may also need a separate voice interface module.
For Ethernet WAN expansion on Catalyst 8000 routers, choose a C-NIM module based on the WAN handoff. Use a copper RJ45 C-NIM for Ethernet handoff, an SFP or SFP+ C-NIM for fiber handoff, and a dual-port C-NIM when you need two flexible WAN ports. If the WAN circuit is legacy serial, choose NIM-1T, NIM-2T, or NIM-4T instead.
For LAN or LAN/WAN port expansion, use C-NIM LAN/WAN modules. C-NIM-8T is suitable for 1G RJ45 copper LAN/WAN ports, and C-NIM-8M is suitable for 2.5G mGig RJ45 ports with UPOE+ support on selected Catalyst 8200 and Catalyst 8300 platforms. C-NIM-4X provides four 1G / 10G SFP/SFP+ ports and should be treated as a Catalyst 8300-focused option.
C-NIM WAN modules are mainly selected for routed WAN handoffs, such as a carrier RJ45, SFP, or SFP+ connection. LAN/WAN C-NIM modules are selected when the router needs multiple branch Ethernet ports that can support LAN switching or LAN/WAN expansion. Always check whether the project needs routed WAN interfaces or LAN/WAN switch ports before choosing.
For 10G SFP+ requirements, use C-NIM-1X or C-NIM-4X on Catalyst 8300 platforms. Catalyst 8200 platforms should not be treated as 10G C-NIM platforms, so check the exact router model before choosing a 10G module.
For 2.5G mGig copper ports, choose a mGig C-NIM. A 1-port mGig C-NIM is suitable for one powered WAN handoff, while an 8-port mGig C-NIM is better for branch LAN/WAN expansion where multiple 2.5G RJ45 ports or UPOE+ support are required.
For serial WAN connections, use NIM-1T, NIM-2T, or NIM-4T depending on how many Smart Serial ports are required. These modules are used for legacy serial WAN, leased-line, private WAN, industrial, and utility networks. They are not the same as Ethernet WAN C-NIM modules.
For async terminal server or RS-232 console access, choose NIM-16A or NIM-24A. NIM-16A provides 16 async ports, while NIM-24A provides 24 async ports. These modules are commonly used for terminal services and centralized console access. Before ordering, confirm the router platform, IOS XE mode, cabling, and whether SD-WAN/vManage support is required.
No. NIM-PVDM is a voice DSP module, not an analog voice interface card. It provides DSP resources for IP media services such as conferencing and transcoding. If the router needs to connect analog phones, fax machines, or PSTN lines, you should check for FXS, FXO, E/M, BRI, or T1/E1 voice interface requirements.
Start with the required function: WAN expansion, LAN/WAN expansion, serial WAN, async console access, or voice DSP. Then confirm the router model, available NIM slot, IOS XE version, port speed, RJ45 or fiber media, PoE requirement, MACsec requirement, cable type, and whether the port will be used for routed WAN or LAN/WAN switching.
Cisco Catalyst 8000 router modules and cards are used to expand Ethernet WAN, LAN/WAN, serial WAN, async console access, and voice DSP resources on supported Catalyst 8200, Catalyst 8200L, and Catalyst 8300 edge platforms. Compatibility is module-dependent: C-NIM-1M, C-NIM-2T, C-NIM-8T, and C-NIM-8M can be used on selected Catalyst 8200 and Catalyst 8300 platforms, while 10G SFP+ options such as C-NIM-1X and C-NIM-4X should be treated as Catalyst 8300-focused modules.
The right module depends on the router model, available NIM slot, IOS XE version, port speed, copper or fiber media, MACsec requirement, PoE requirement, and whether the interface will be used for routed WAN, LAN/WAN switching, serial WAN, terminal server access, or voice DSP services.
| Requirement | Recommended Products | Typical Use |
|---|---|---|
| 1-port mGig copper WAN with PoE | C-NIM-1M | 1G / 2.5G RJ45 WAN handoff with UPOE+ support |
| 1-port 10G fiber WAN | C-NIM-1X | 1G / 10G SFP+ routed WAN uplink for Catalyst 8300-focused designs |
| 2-port flexible Ethernet WAN | C-NIM-2T | Dual 100M / 1G RJ45 or SFP WAN handoffs |
| 4-port 10G fiber LAN/WAN | C-NIM-4X | 1G / 10G SFP/SFP+ LAN/WAN expansion for Catalyst 8300-focused designs |
| 8-port mGig copper LAN/WAN | C-NIM-8M | 2.5G RJ45 LAN/WAN expansion with UPOE+ support |
| 8-port Gigabit copper LAN/WAN | C-NIM-8T | 1G RJ45 branch LAN/WAN port expansion |
| Serial WAN connections | NIM-1T, NIM-2T, NIM-4T | Legacy serial WAN, leased-line, and private WAN circuits |
| Async terminal server access | NIM-16A, NIM-24A | RS-232 console access for network and infrastructure devices |
| Voice DSP resources | NIM-PVDM-32, NIM-PVDM-64, NIM-PVDM-128, NIM-PVDM-256 | DSP resources for voice media services, conferencing, and transcoding |
If the router needs additional Ethernet WAN interfaces, first confirm the carrier handoff type. RJ45 copper, SFP fiber, SFP+ 10G fiber, and mGig copper requirements use different modules. For a single powered mGig WAN port, choose a 1-port mGig C-NIM. For a single 10G fiber WAN uplink, choose a 1-port SFP+ C-NIM and confirm the router is a supported Catalyst 8300 platform. For two flexible 1G WAN ports, choose a dual-port C-NIM that supports RJ45 or SFP handoff options.
For branch LAN or LAN/WAN expansion, choose by port count, copper or fiber media, and port speed. An 8-port 1G RJ45 module is suitable for common copper branch access. An 8-port mGig module is better when the design needs 2.5G copper and UPOE+ power. A 4-port SFP/SFP+ module is a better fit for fiber uplinks, 10G aggregation, or high-speed LAN/WAN expansion on Catalyst 8300 platforms.
Serial WAN modules are still used in some private WAN, leased-line, utility, industrial, and legacy branch networks. Choose the serial module based on the number of required Smart Serial ports, cable type, router support, and IOS XE version. Do not confuse serial WAN NIMs with Ethernet WAN C-NIMs; they are used for different WAN technologies.
Async NIMs are used when a router needs to provide centralized console access to switches, firewalls, servers, power systems, or other infrastructure equipment. The key selection factor is port count. A 16-port async module is suitable for smaller deployments, while a 24-port async module is better for higher-density console access. For async terminal server modules, confirm whether the router will run in traditional IOS XE mode or SD-WAN mode before ordering.
NIM-PVDM modules provide DSP resources for IP voice media services such as conferencing, transcoding, media optimization, and secure voice designs. They are not analog FXS or FXO voice interface cards. If the project needs to connect analog phones, fax machines, or PSTN lines, a separate voice interface module may be required. Choose NIM-PVDM density based on the required voice channels, codec plan, and router voice design.
| Module Type | Best For | Key Buying Checks |
|---|---|---|
| Ethernet WAN C-NIM | RJ45, SFP, SFP+, mGig, and routed WAN handoffs | Port speed, media type, MACsec, PoE, router platform, and routed WAN requirement |
| LAN/WAN C-NIM | Branch LAN expansion, switch ports, fiber uplinks, and mixed LAN/WAN designs | Port count, Layer 2/Layer 3 use, copper or fiber media, PoE, 10G support, and IOS XE version |
| Serial WAN NIM | Legacy serial circuits, leased lines, and private WAN connections | Number of serial ports, Smart Serial cable type, router support, and interface speed |
| Async NIM | Terminal server and RS-232 console access | 16-port or 24-port density, cabling, IOS XE mode, SD-WAN requirement, and console server design |
| NIM-PVDM | Voice DSP resources for IP media services | Channel density, codec, conferencing, transcoding, and voice platform support |
To avoid compatibility issues, prepare the router model, current slot usage, IOS XE version, WAN handoff type, copper or fiber media, required port speed, PoE requirement, MACsec requirement, cable type, and whether the ports will be used for routed WAN, LAN/WAN switching, serial WAN, async access, or voice DSP services. If the project involves voice, also confirm whether you need analog voice ports, SIP trunking, T1/E1 voice, conferencing, transcoding, or only DSP resources.
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