Fast & Secure
CISCO3925E/K9 Overview
The Cisco 3925E router is designed for large branch offices, which delivers modular Services Performance Engine (SPE) 200.
Quick Specs
Figure 1 shows the appearance of the CISCO3925E/K9.
Table 1 shows the Quick Specs of the CISCO3925E/K9.
| Product Code | CISCO3925E/K9 |
| Services Performance Engine module | w/SPE 200 |
| Rack Units | 3U |
| Interfaces | 4 integrated 10/100/1000 Ethernet ports with 2 SFP ports |
| Expansion Slot(s) | 2 service module slots
3 onboard digital signal processor (DSP) slots 3 Enhanced High-Speed WAN Interface Card (EHWIC) slots |
| RAM | 1 GB (installed) / 2 GB (max) |
| Flash Memory | 256 MB (installed) / 8 GB (max) |
| Dimensions | 47.6 cm x 43.8 cm x 13.3 cm |
| Package Weight | 23.52 Kg |
Product Details
Figure 2 shows the front panel of the Cisco 3925E/K9 router.
Note:
| On/Off switch | Power connector | LEDs area |
Table 2 shows the LEDs area description.
| LED | Description | |
| SYS status LED | Solid green | Solid green indicates normal operation. |
| Blinking green | System is bootingis in ROM monitor mode. | |
| Amber | System error. | |
| Off | Power is offsystem board is faulty. | |
| ACT status LED | Solidblinking green | Solidblinking indicates packet activity between the forwarding and routing engine and any I/O port. |
| Off | No packet transfers are occurring. | |
| POE | Green | IP phone power is on. |
| Amber | IP phone power is not on. | |
| PS1 / PS2 | Green | System is running. |
| Amber | System is not running. |
The back panel of CISCO3925E/K9 is similar with the CISCO3945E/K9 except that CISCO3925E has only 2 Services Module Slots.
Figure 3 shows the back panel of the Cisco router 3945E/K9 with LEDs, for reference only.
Note:
| Compact flash 0 and 1 (0, right) | S (Speed) | ||
| PVDM3 0,1, and 2 (0, far right) | L (Link) | ||
| EN (Enable USB console) | SFP S | ||
| EN (Enable RJ-45 console) | SFP EN |
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 |
| PVDM3 0,1, and 2 | Green | PVDM is initialized. | Back Panel |
| Amber | PVDM is detected but not initialized. | ||
| Off | No PVDM 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. |
The back panel of CISCO3925E/K9 is similar with the CISCO3945E/K9 except that CISCO3925E has only 2 Services Module Slots.
Figure 4 shows the back panel of the Cisco 3945E router with slots and ports, for reference only.
Note:
| EHWIC 0,1, and 2 (0, far right) | SFP 1 and SFP 2 (1, Top) | ||
| USB serial port | USB 0 and USB 1 (1, Left) | ||
| AUX port | Ground | ||
| RJ-45 serial console port | Service module slots | ||
| 10/100/1000 Ethernet ports (GE 0/3, Top; GE 0/2, Bottom) | Compact flash 0 and 1 (0, right) | ||
| 10/100/1000 Ethernet ports (GE 0/1, Top; GE 0/0, Bottom) |
The Cisco 3900 Series offers field-replaceable SPEs which allow you to protect your initial investment in the Cisco 3900 platform for a longer time period and scale router performance as your network and branch-office needs grow.
Figure 5 shows the SPE area and you can upgrade these slots and ports directly by one SPE module.
The Cisco 3900 Series offers field-replaceable SPEs which allow you to protect your initial investment in the Cisco 3900 platform for a longer time period and scale router performance as your network and branch-office needs grow.
Modularity Features
The Cisco 3925E router provides enhanced modular capabilities.
Table 4 shows modules for this router.
| Models | Description |
|
C3900-SPE200/K9 |
Cisco Services Performance Engine 200 for Cisco 3925E ISR
(It’s a configured item in the CISCO3925E/K9.) |
|
SM-ES3G-16-P |
Enhanced EtherSwitch Service Module, L2/L3 switching, 16* 10/100/1000 GE ports, Enhanced POE, Cisco EnergyWise technology |
|
SM-ES3G-24-P |
Enhanced EtherSwitch Service Module, L2/L3 switching, 24 * 10/100/1000 GE ports, Enhanced POE, Cisco EnergyWise technology |
|
VWIC3-2MFT-G703 |
Cisco Voice/WAN Card VWIC3-2MFT-G703 |
|
HWIC-2T |
2-Port Serial WAN Interface Card Cisco Router High-Speed WAN Interface card |
|
EHWIC-1GE-SFP-CU |
Cisco 1900, 2900, 3900 Router EHWIC WAN Card EHWIC-1GE-SFP-CU |
|
EHWIC-4ESG |
Four port 10/100/1000 Base-TX Gigabit Ethernet switch interface card for Cisco 1900 2900 3900 Routers |
|
ISM-SRE-300-K9 |
Internal Services Module (ISM) with Services Ready Engine |
|
PVDM3-16 |
16-channel high-density voice DSP module |
|
MEM-CF-256U1GB |
256MB to 1GB Compact Flash Upgrade for Cisco 1900,2900,3900 |
|
MEM-CF-256U2GB |
256MB to 2GB Compact Flash Upgrade for Cisco 1900,2900,3900 |
|
MEM-CF-256U512MB |
256MB to 512MB CF Upgrade for Cisco 1900,2900,3900 ISR |
|
MEM-CF-256U4GB |
256MB to 4GB Compact Flash Upgrade for Cisco 1900,2900,3900 |
|
MEMUSB-1024FT |
1GB USB Flash Token |
Compare to Similar Routers
Table 6 shows the comparison of Cisco 3900 Series Routers’ four K9 models.
| Model |
CISCO3925/k9 |
CISCO3945/k9 |
CISCO3925E/k9 |
CISCO3945E/k9 |
| SPE | w/SPE 100 | w/SPE 150 | w/SPE 200 | w/SPE 250 |
| Interface | 3GE | 3GE | 4GE | 4GE |
| EHWIC slots | 4 | 4 | 3 | 3 |
| SM slots | 2 | 4 | 2 | 4 |
| ISM slots | 1 | 1 | 0 | 0 |
| DSP | 4 | 4 | 3 | 3 |
| SFP | 2 | 2 | 2 | 2 |
| Rack Unit | 3U | 3U | 3U | 3U |
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