Маршрутизатор Cisco CISCO2921/K9
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Описание
The Cisco 2921 router, supporting voice module, is designed for small offices.
Quick Specs
Figure 1 shows the appearance of the CISCO2921/k9.
Table 1 shows the Quick Specs of the CISCO2921/k9.
| Product Code | CISCO2921/k9 |
| Rack Units | 2U |
| Interfaces | 3 integrated 10/100/1000 Ethernet ports (RJ-45 only) |
| Expansion Slot(s) | 2 service module slot 1 Internal Service Module slot 3 onboard digital signal processor slots 4 Enhanced high-speed WAN interface card (EHWIC) slots |
| RAM | 512 MB (installed) / 2 GB (max) |
| Flash Memory | 256 MB (installed) / 8 GB (max) |
| Dimensions | 47 cm x 43.8 cm x 8.9 cm |
| Package Weight | 18.93 Kg |
Product Details
Figure 2 shows the front panel of the Cisco 2921 router.
Note:
?AC OK ?On/Off switch ?AC power connector ?Optional RPS adapter(blank panel shown) ?LEDs area
Table 2 shows the LEDs area description.
| LED | Color | Description |
| SYS | Solid green | Solid green indicates normal operation. |
| Blinking green | System is booting or is in ROM monitor mode. | |
| Amber | System error. | |
| Off | Power is off or system board is faulty. | |
| ACT | Green | Solid or blinking indicates packet activity between the forwarding and routing engine and any I/O port. |
| Off | No packet transfers are occurring. | |
| PoE | Green | PoE is available. |
| Amber | Power supply is not supplying PoE power. | |
| RPS | Green | System is running on external RPS power supply. |
| PS | Green | System is running. |
| Amber | System is not running. |
Figure 3 shows some LEDs on the back panel of the Cisco 2921 router.
Note:
? Compact flash 0 and 1 (0, right) ? ISM ? PVDM3 0,1 and 2 (0 right) ? EN (Enable USB console) ? EN (Enable RJ-45 console)
? SFP S ? SFP EN ? S (Speed) ? L (Link)
Table 3 shows the description of these LEDs on the back panel.
| LED | Color | Description | Location |
| CompactFlash 1 | Green | Flash memory is busy. | Back Panel |
| Amber | Initialized with error. | ||
| Blinking Green then turns off | CompactFlash is ready for removal. | ||
| CompactFlash 0 | Green | Flash memory is busy. | Back Panel |
| Amber | Initialized with error. | ||
| Blinking Green then turns off | CompactFlash is ready for removal. | ||
| S (Speed) | 1 blink + pause | GE port operating at 10 Mb/s. | Back Panel |
| 2 blink + pause | GE port operating at 100 Mb/s. | ||
| 3 blink + pause | GE port operating at 1000 Mb/s. | ||
| L (Link) | Green | GE link is established. | Back Panel |
| Off | No GE link is established. | ||
| EN (RJ-45 console port) | Green | The RJ-45 console port is active. | Back Panel |
| EN (USB serial console port) | Green | The USB console port is active. | Back Panel |
| ISM | Green | Initialized. | Back Panel |
| Amber | Initialized with error. | ||
| Off | Not installed. | ||
| SFP S | Blinking green | Blinking frequency indicates port speed. | Back Panel |
| SFP EN | Off | Not present. | Back Panel |
| Green | Present and enabled. | ||
| Amber | Present with failure. | ||
| PVDM 0, 1 and 2 | Green | PVDM is initialized. | Back Panel |
| Amber | PVDM is detected but not initialized. | ||
| Off | No PVDM installed. |
Figure 4 show the expansion slots and ports on the back panel.
The Cisco 2921/K9 supports expansion functions with modules and cards.
Note:
? Compact flash 0 and 1 (0, right) ? EHWIC 0,1,2 and 3 (0, far right) ? USB serial port
? RJ-45 serial console port ? AUX port ? SFP
? 10/100/1000 Ethernet port (GE 0/1 and GE 0/2) ? 10/100/1000 Ethernet port GE 0/0
? Ground ? USB 0 and 1 (1, top) ? Service module slots
Figure 5 shows the unboxing view of CISCO2921/K9.
Cards and Licenses
Table 4 shows some recommended models for this router.
| Cards | Description |
| Enhanced EtherSwitch Service Module, L2/L3 switching, 16* 10/100/1000 GE ports, Enhanced POE, Cisco EnergyWise technology | |
| Enhanced EtherSwitch Service Module, L2/L3 switching, 24 * 10/100/1000 GE ports, Enhanced POE, Cisco EnergyWise technology | |
| Cisco Voice/WAN Card VWIC3-2MFT-G703 | |
| 2-Port Serial WAN Interface Card Cisco Router High-Speed WAN Interface card | |
| 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 | |
| Internal Services Module (ISM) with Services Ready Engine | |
| 16-channel high-density voice DSP module | |
| 256MB to 1GB Compact Flash Upgrade for Cisco 1900,2900,3900 | |
| 256MB to 2GB Compact Flash Upgrade for Cisco 1900,2900,3900 | |
| 256MB to 512MB CF Upgrade for Cisco 1900,2900,3900 ISR | |
| 256MB to 4GB Compact Flash Upgrade for Cisco 1900,2900,3900 | |
| 1GB USB Flash Token | |
| Licenses | Description |
| Cisco 2900 License L-SL-29-SEC-K9 Security E-Delivery PAK for Cisco 2901-2951 | |
| Cisco Application Experience License ISR 2900 Series - includes licenses for: AppX, DATA and WAASX | |
| Cisco 2900 License L-SL-29-SECNPE-K9 SEC No Payload Encryption E PAK for Cisco 2901-2951 | |
| Cisco 2900 License L-SL-29-UC-K9= Unified Communication E-Delivery PAK for Cisco 2901-2951 |
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