Cisco Router 800 series CISCO831-SDM-K9 Interfaces/Ports:
Total Number of Ports:6
Interfaces/Ports: 4 x RJ-45 Network  Ports
Management Port:Yes
Interfaces/Ports:1 x RJ-45 Broadband Ports
Interfaces/Ports:1 x RJ-11 Ports

Cisco Router 800 series CISCO831-SDM-K9 Media & Performance:

Carrier Supported:ISDN

Cisco Router 800 series CISCO831-SDM-K9 Network & Communication:

Network Technology:10/100Base-TX
Network Technology:10Base-T
Ethernet Technology:Fast Ethernet
Network Technology:ISDN BRI (S/T)

Cisco Router 800 series CISCO831-SDM-K9 Management & Protocols:

Security Features:IPSec
Security Features:3DES
Security Features:Intrusion Detection System
Security Features:URL filtering
Security Features:SSH
Security Features:Stateful-Inspection Firewall
Security Features:Denial-of-service
Security Features:NAPT
Security Features:PAP
Security Features:CHAP
Security Features:AES

Security Features:Cisco Router 800 series CISCO831-SDM-K9 Memory:

Standard Memory:64MB
Maximum Memory:80MB
Memory Technology:DRAM
Flash Memory:24MB

Security Features:Cisco Router 800 series CISCO831-SDM-K9 Power Description:

Power Input Voltage;110 V AC
Power Input Voltage:220 V AC
Power Input Voltage Range:110 V AC to 220 V AC
Power Source: AC Adapter