The Cisco 1900 Series has two platforms, the 1921 and the 1941. Each has two onboard Gigabit Ethernet ports and two EHWIC slots, and each ships with IP Base, 256 MB of flash and 512 MB of DRAM. The 1941 is orderable as CISCO1941/K9. Its wireless form, the 1941W, adds an 802.11 a/b/g/n module with a regional code in the SKU: CISCO1941W-A/K9 is the FCC unit, and the C, E, P and N endings cover China, ETSI countries, Japan, and Australia with New Zealand.
Memory separates the pair. The 1921 has 256 MB of internal eUSB flash and 512 MB of soldered DRAM, and neither can be upgraded. The 1941 also has soldered 512 MB of DRAM, with modular DIMM upgrades in 512 MB, 1 GB and 2 GB sizes, and its Compact Flash slots take cards from 256 MB to 4 GB.
Power differs as well. The 1921 has an integrated AC supply, and PoE for a switch module comes from an external unit, PWR-1900-POE. The 1941 takes the internal PWR-1941-AC or PWR-1941-POE. It has no DC supply and no connector for an external redundant supply.
The 1941 measures 3.5 x 13.5 x 11.5 inches and weighs 12 lb with the AC supply and no modules. A single ISM slot is present, except on the 1941W, along with two USB 2.0 ports. A mini-B USB console port sits beside the RJ-45 console and auxiliary ports, and the USB console port needs its own cable, CAB-CONSOLE-USB.
The 1921 also has bundle SKUs with a WAN card installed: CISCO1921-ADSL2/K9 with an HWIC-1ADSL, C1921-ADSL2-M/K9 with an HWIC-1ADSL-M for Annex M, and C1921-4SHDSL/K9 with an HWIC-4SHDSL. Rack-mount brackets ship with every 1900 Series router except the 1921, whose kit is ordered separately as ACS-1900-RM-19, while the 1941 kit is ACS-1941-RM-19=.
Single-model detail is on the Cisco 1921 and Cisco 1941 pages. The Cisco router category holds more routers, and networking leads to the other Cisco families.
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Cisco 1900 Series Routers parts we supply
Routers (10)
- CISCO1921/K9: 1921, 2GE, 2 EHWIC slots, 256 MB flash, 512 MB DRAM, IP Base
- CISCO1921-ADSL2/K9: 1921 ADSL2+ bundle with HWIC-1ADSL
- C1921-ADSL2-M/K9: 1921 ADSL2 Annex M bundle with HWIC-1ADSL-M
- C1921-4SHDSL/K9: 1921 4-pair G.SHDSL bundle with HWIC-4SHDSL
- CISCO1941/K9: 1941, 2GE, 2 EHWIC slots, 256 MB flash, 512 MB DRAM, IP Base
- CISCO1941W-A/K9: 1941 with 802.11 a/b/g/n WLAN, FCC
- CISCO1941W-C/K9: 1941 with 802.11 a/b/g/n WLAN, China
- CISCO1941W-E/K9: 1941 with 802.11 a/b/g/n WLAN, ETSI
- CISCO1941W-P/K9: 1941 with 802.11 a/b/g/n WLAN, Japan
- CISCO1941W-N/K9: 1941 with 802.11 a/b/g/n WLAN, Australia and New Zealand
Power supplies (3)
- PWR-1941-AC: 1941 AC power supply
- PWR-1941-POE: 1941 AC power supply with Power over Ethernet
- PWR-1900-POE: 1921 external Power over Ethernet power supply
Memory (7)
- MEM-1900-512MB=: 512 MB DRAM for the 1941 and 1941W
- MEM-1900-1GB=: 1 GB DRAM for the 1941 and 1941W
- MEM-1900-2GB=: 2 GB DRAM for the 1941 and 1941W
- MEM-CF-512MB=: 512 MB Compact Flash, shared across the 1900, 2900 and 3900 Series
- MEM-CF-1GB=: 1 GB Compact Flash
- MEM-CF-2GB=: 2 GB Compact Flash
- MEM-CF-4GB=: 4 GB Compact Flash
Fans, rack kits and cables (4)
- 1941-2901-FANBLWR=: Fan blower assembly for the 1941 and 2901
- ACS-1900-RM-19: 19 inch rack-mount kit for the 1921
- ACS-1941-RM-19=: 19 inch rack-mount kit for the 1941 and 1941W
- CAB-CONSOLE-USB: 6 ft console cable, USB Type A to mini-B