SM‑NM‑ADPTR Specifications
Network Module Adapter for SM slot on Cisco 2900/3900 ISR series routers
Manufacturer: Cisco
Manufacturer Model: SM‑NM‑ADPTR
Product Line: Cisco Network Module Adapters
Product Series: SM‑slot to NIM‑slot Adapter
Product Type: Adapter Module
Product Name: Cisco SM to NM Network Module Adapter
KEY FEATURES:
Provides an adapter interface enabling a Network Module (NM) to be installed into an SM (Service Module) slot on compatible routers
Designed for Cisco ISR G2 and select ISR 3900/2900 platforms
Enables reuse of existing Network Modules (NMs) in routers that originally support SM‑slots
Plug‑in design, field‑installable with hot‑swap support (within supported router and under proper conditions)
PERFORMANCE:
Module form‑factor does not directly provide data‑rate performance itself; data‑rate depends on the installed Network Module (NM) once adapter is in place
Adapter merely provides slot and electrical/optical interface conversion
ENVIRONMENTAL & RELIABILITY:
Operating Temperature: 0 °C to 40 °C
Storage Temperature: ‑20 °C to 70 °C
Operating Humidity: 10% to 85% non‑condensing
Designed for enterprise integrated‑services router expansions and service‑provider edge reuse scenarios
End‑of‑Life Notice: EOL announced Aug 24 2018; End‑of‑Sale Feb 22 2019; End service life Feb 29 2024
PHYSICAL:
Form Factor: Adapter module sized to fit SM‑slot of the router chassis
Typical Dimensions: Standard SM‑slot module size (consult router chassis guide)
Weight: Lightweight adapter only (module alone)
COMPATIBILITY & NOTES:
Compatible Devices: Cisco ISR 2900 and ISR 3900 series routers supporting SM‑slots and NM modules
Usage: Insert the SM‑NM‑ADPTR into the router’s SM‑slot, then install a supported NM into the adapter’s interface
Software/Firmware: Router IOS version must support the NM used and adapter slot usage
Because this adapter is end‑of‑life, procurement should be planned as legacy support or bridging; verify compatibility, condition, and firmware status when purchasing used or refurbished

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