Hello,
I found a cisco q&a on the 2800 series router which explains clearly this module (among others) is NOT supported period.
Table 2. Network Modules Not Supported by Cisco 2811, Cisco 2821, and Cisco 2851 routers
NM-1FE-FX NM-2CE1U NM-1A-OC3SMI-1V
NM-1FE-TX NM-2CT1 NM-1A-OC3SML-1V
NM-1FE-SMF NM-2CT1-CSU NM-1A-OC3-MM-EP
NM-1FEFX-V2(MMF) NM-1A-OC3MM NM-1A-OC3SMI-EP
NM-1FE1R2W NM-1A-OC3SMI NM-1A-OC3SML-EP
NM-1FE2W NM-1A-OC3SML NM-4T
NM-1FE2W-V2 NM-1GE NM-1V
NM-2FE2W NM-1FE-MMF NM-1CT1
NM-2FE2W-V2 NM-1FEFX-SMF NM-8E1-IMA
NM-2W NM-1CE1B NM-8T1-IMA
NM-4E1-IMA NM-1CE1U NM-4T1-IMA
NM-1CT1-CSU NM-2V
NM-2CE1B NM-1A-OC3MM-1V
__ Why are these network modules not supported on the Cisco 2811, 2821, and 2851 routers?
__ Many of these modules, such as the Primary Rate Interface (PRI) and ATM inverse-multiplexing-over-ATM (IMA) modules, have reached
end of sale or have been replaced by newer modules that are supported. Others, such as the Fast Ethernet combination card (part number NMxFExW)
and OC-3 network modules (part number NM-1A-OC3), were not supported on the Cisco 2600 Series and do not carry forward into
the Cisco 2811, 2821, and 2851 routers. Finally, some modules, such as the NM-2W are no longer required because the Cisco 2800 Series has
higher-density interfaces and slots. No functions have been removed by not supporting these modules.
