| C1921-3G-S-SEC/K9 Specifications | |
| Type: | C1921 3G EHWIC EVDO Bundles with SEC for Sprint Networks | 
| Enclosure Type: | Desktop, modular, 1U | 
| Connectivity Technology: | Wired | 
| Data Link Protocol: | Ethernet, Fast Ethernet, Gigabit Ethernet | 
| Network / Transport Protocol: | L2TP, IPSec | 
| Routing Protocol: | OSPF, IS-IS, BGP, EIGRP, DVMRP, PIM-SM, IGMPv3, GRE, PIM-SSM, static IPv4 routing, static IPv6 routing, policy-based routing (PBR) | 
| Remote Management Protocol: | SNMP, RMON | 
| Features: | Firewall protection, VPN support, MPLS support, VLAN support, Syslog support, IPv6 support, Class-Based Weighted Fair Queuing (CBWFQ), Weighted Random Early Detection (WRED), Quality of Service (QoS) | 
| Compliant Standards: | IEEE 802.1Q, IEEE 802.3ah, IEEE 802.1ag | 
| RAM: | 512 MB (installed) / 512 MB (max) | 
| Flash Memory: | 256 MB (installed) / 256 MB (max) | 
| Type: | DSL modem | 
| Digital Signaling Protocol: | ADSL, ADSL2, ADSL2+ | 
| Protocols & Specifications: | ITU G.992.1 (G.DMT), ITU G.992.3 (G.DMT.bis), ITU G.992.5 | 
| Max Transfer Rate: | 24 Mbps | 
| Interfaces: | 2 x 10Base-T/100Base-TX/1000Base-T, RJ-45, Serial : 1 x console , Management : 1 x console, mini-USB Type B , Serial : 1 x auxiliary , Hi-Speed USB : 1 x 4 pin USB Type A , WAN : 1 x ADSL2+, RJ-11 | 
| Expansion Slot(s): | 2 (total) / 1 (free) x EHWIC | 
| Power Device: | Power supply, internal | 
| Voltage Required: | AC 120/230 V ( 50/60 Hz ) | 
| Width: | 13.5 in | 
| Depth: | 11.5 in | 
| Height: | 1.7 in | 
| Min Operating Temperature: | 32 °F | 
| Max Operating Temperature: | 104 °F | 
| Humidity Range Operating: | 10, 85% | 
 
                     
                
                 
                 
                        







 
                     
                     
                     
                     
                     
                     
                     
                     
                     
                     
                     
                    