Home / Shop
- Description
- Specifications
The CISCO2921/K9 is a Cisco 2921 Integrated Services Router with three onboard 10/100/1000 Ethernet WAN ports, four EHWIC slots, three DSP slots and one ISM slot. Its default configuration is 512 MB of DRAM and a 256 MB external CompactFlash card in slot 0.
All three WAN ports are RJ-45 based, and the router also has one SFP-based port: using the SFP port disables the corresponding RJ-45 port. Besides the four EHWIC slots (two of them double-wide), the 2921 has one double-wide service module slot. Memory expands to 2 GB of DDR2 ECC DRAM, each of the two external CompactFlash slots takes up to 4 GB, and two external USB 2.0 Type A slots are fitted.
Voice capacity is 100 Cisco Unified SRST sessions and 100 Cisco Unified CME sessions. The three DSP slots take PVDM3 modules, and the 2921 is among the routers Cisco supports them in. Hardware-based cryptography acceleration is embedded.
Power-supply options are AC, PoE and DC. The AC supply takes 100 to 240 VAC auto-ranging at 47 to 63 Hz with a 3.4 to 1.4 A current range. Typical power with no modules is 60 W, and the maximum with the AC supply is 320 W.
The CISCO2911/K9 Cisco 2911 router is another Cisco 2900 Series model, and more routers are in Cisco routers.
Related: Cisco 2921 router parts
| Part number | CISCO2921/K9 (also written CISCO2921-K9) |
| Type | Cisco 2921 Integrated Services Router |
| Onboard WAN ports | 3 x 10/100/1000 RJ-45; 1 SFP port shared with an RJ-45 port |
| EHWIC slots | 4 (2 double-wide) |
| Service module slots | 1 (double-wide) |
| DSP (PVDM) slots | 3 |
| ISM slots | 1 |
| DRAM | 512 MB default, 2 GB maximum (DDR2 ECC) |
| External CompactFlash | 256 MB default in slot 0, 4 GB maximum per slot |
| USB 2.0 Type A slots | 2 |
| Power-supply options | AC, PoE, DC |
| AC input | 100 to 240 VAC auto-ranging, 47 to 63 Hz |
| Compatible with | PVDM3 DSP modules (3 slots); EHWIC cards (4 slots) |