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Network Module Cisco 2801 Cisco 2811 Cisco 2821 Cisco 2851
NMD-36ESW-PWR 36-port 10/100 Cisco EtherSwitch HDSM with in-line
power support
No No No
NMD-36ESW-PWR-
2G
36-port 10/100 Cisco EtherSwitch HDSM with in-line
power and Gigabit Ethernet
No No No
Serial Connectivity Network Modules
NM-1T3/E3 1-port clear-channel T3/E3 network module No
NM-1HSSI 1-port High-Speed Serial Interface (HSSI) network
module
No
NM-4A/S 4-port asynchronous/synchronous serial network
module
No
NM-8A/S 8-port asynchronous/synchronous serial network
module
No
NM-16A/S 16-port asynchronous/synchronous serial network
nodule
No
NM-16A 16-port asynchronous serial network module No
NM-32A 32-port asynchronous serial network module No
Channelized T1/E1 and ISDN Network Modules
NM-1CE1T1-PRI 1-port Channelized E1/T1/ISDN PRI network module No
NM-2CE1T1-PRI 2-port Channelized E1/T1/ISDN PRI network module No
NM-4B-S/T 4-port ISDN BRI network module (S/T interface) No
NM-4B-U 4-port ISDN BRI network module with integrated
Network Termination 1 (NT1) (U interface)
No
NM-8B-S/T 8-port ISDN BRI network module (S/T interface) No
NM-8B-U 8-port ISDN BRI network module with integrated NT1
(U interface)
No
ATM Network Modules
NM-1A-T3 1-port DS-3 ATM network module No
NM-1A-E3 1-port E3 ATM network module No
Analog Dialup and Remote Access Network Modules
NM-8AM-V2 8-port analog modem network module with v.92 No
NM-16AM-V2 16-port analog modem network module with v.92 No