C1921-4SHDSL/K9 is the Cisco 1921 router with 4-pair SHDSL Bundle, HWIC-4SHDSL, and IP Base License. The Cisco 1921 Router, which Memory and Flash Memory can't upgrade, is designed for branch offices.
Figure 1 shows the front view of Cisco Router 1921/K9 for reference.
Table 1 shows the Quick Specs.
Cisco 1921 4-pair SHDSL Bundle, HWIC-4SHDSL, IP Base Lic
2 integrated 10/100/1000 Ethernet ports: GE0/0&GE0/1
2 enhanced High-Speed WAN Interface Card (EHWIC) slots
512 MB/512 MB
256 MB/256 MB
1.75 x 13.5 x 11.5 in.
Figure 2 shows the statue LEDs, on the front panel of the 1921/K9 for reference, including three statues: SYS, ACT and PoE.
Figure 3 shows the ports and slots on the back panel of Cisco 1921/K9 for reference.
① EHWIC slot ⑤ USB serial port
② Auxiliary port ⑥ RJ-45 serial console port
③ GE 0/0（down）and 0/1(up) ⑦ USB port
④ Input power connector ⑧ POE
* Cisco 1921/K9 supports 1 integrated EHWIC slots for flexible configurations. It supports two modules:
1. 1 double wide HWIC-D or single wide EHWIC/HWIC module or 2 single wide EHWIC/HWIC module.
2. High-speed USB 2.0 ports enable another mechanism secure token capabilities and storage.
Recommended Cards and Licenses
Table 2 shows recommended EHWIC, HWIC, VWIC cards and licenses for this router.
Cisco 1900, 2900, 3900 Router EHWIC WAN Card EHWIC-1GE-SFP-CU
Four port 10/100/1000 Base-TX Gigabit Ethernet switch interface card for Cisco 1900 2900 3900 Routers
HWIC two routed port Cisco Router High-Speed WAN Interface card
1-Port Serial WAN Interface Card Cisco Router High-Speed WAN Interface card
2-Port Serial WAN Interface Card Cisco Router High-Speed WAN Interface card
Cisco Voice/WAN Card VWIC3-1MFT-T1/E1
Cisco Voice/WAN Card VWIC3-2MFT-T1/E1
Cisco Voice & WAN T1/E1 interface moudle VWIC3-1MFT-G703
Cisco Voice/WAN Card VWIC3-2MFT-G703
Cisco 1900 IOS License L-SL-19-DATA-K9= Data E-Delivery PAK for Cisco 1900
Security License for Cisco 1900
AppX License with; DATA and WAAS for Cisco 1900 Series
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Cisco 1921 Router 4-pair SHDSL Bundle, HWIC-4SHDSL, IP Base Lic
Desktop, modular, 1U
Data Link Protocol:
Ethernet, Fast Ethernet, Gigabit Ethernet
Network / Transport 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:
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)
IEEE 802.1Q, IEEE 802.3ah, IEEE 802.1ag
512 MB (installed) / 512 MB (max)
256 MB (installed) / 256 MB (max)
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:
Expansion / Connectivity
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
2 (total) / 1 (free) x EHWIC
Power supply, internal
AC 120/230 V ( 50/60 Hz )
VCCI, CISPR 22 Class A, CISPR 24, EN55024, EN55022 Class A, EN50082-1, AS/NZS 60950-1, ICES-003 Class A, CS-03, FCC CFR47 Part 15, EN300-386, UL 60950-1, IEC 60950-1, EN 60950-1, CSA C22.2 No. 60950-1
Software / System Requirements
Cisco IOS IP Base
Service & Support:
1 year warranty
Service & Support Details:
Limited warranty, 1 year
Min Operating Temperature:
Max Operating Temperature:
Humidity Range Operating:
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