Quick Specs.
| Product Code | Cisco ISR4331/K9 |
| Aggregate Throughput | 100 Mbps to 300 Mbps |
| Total onboard WAN or LAN 10/100/1000 ports | 3 |
| RJ-45-based ports | 2 |
| SFP-based ports | 2 |
| Enhanced service-module (SM-X) slot | 1 |
| NIM (Network Interface Modules) slots | 2 |
| Onboard ISC slot | 1 |
| Memory | 4 GB (default) / 16 GB (maximum) |
| Flash Memory | 4 GB (default) / 16 GB (maximum) |
| Power-supply options | Internal: AC and PoE |
| Rack height | 1 RU |
| Dimensions (H x W x D) | 44.45 x 438.15 x 438.15 mm |
| Package Weight | 12.96 Kg |
| Model | ISR4331/K9 |
| Integrated Ports | 1x 1Gbps RJ-45, 1x 1Gbps SFP & 1x 1Gbps T/SFP Combo Port |
| Aggregate Throughput | 300 Mbps |
| Flash | 4GB |
| RAM | 4GB |
| Enhanced Service Module (SM-X) Slots | 1 |
| Double Wide Enhanced Service Module Slots | 0 |
| Network Interface Module (NIM) Slots | 2 |
| Integrated Services Card (ISC) Slot | 1 |
| Power Supplies | 1x 250W Fixed Power Supply (1x Fixed) |
| Boost or Performance License | Performance License |
| Licenses Installed | IPBase K9 License |
| Operating System | IOS-XE |
| Smart Net Covered | Not Eligible |
| Chassis Type | 1U Rackmountable |
| Rack Mounting Kit | Rack Ears Included (3rd Party) |
| Additional Information | 4331 ISR4331 |
| LEDs | Represents | Color | Description |
| POE0 | POE PSU | Green | PoE is on and providing power. |
| Amber | PoE is in a failed condition. | ||
| Off | PoE supply is not present. | ||
| FLASH | System Flash Status | Blinking Green | Compact flash/eUSB flash is present and currently being accessed. |
| TEMP | Temperature Status | Solid green | All temperature sensors in the system are within acceptable range. |
| Amber | One or more temperature sensors in the system are outside the acceptable range. | ||
| Off | Temperature is not being monitored. | ||
| PWR | System Power | Green | System power is on and functioning correctly. |
| Green blinking | System power is in the process of shutting down. | ||
| Amber | System power is up, but low level initialization failed. | ||
| Amber blinking | System power is up, but the system failed to come out of reset. | ||
| Off | System power is off. | ||
| SSD | mSATA Slot Status | Green | SSD mSATA is present and enabled. |
| Amber | Initialized with error. | ||
| Off | Not present. | ||
| ISC | ISC Slot Status | Green | PVDM4 is present and enabled. |
| Amber | Initialized with error. | ||
| Off | Not present. | ||
| FAN | Fan Status | Green | All fans are operating. |
| Amber | One fan has stopped working. | ||
| Blinking Amber | Two or more fans have stopped working, or the fan tray has been removed. | ||
| Off | Fans are not being monitored. | ||
| STAT | System Status | Solid green | System operating normally. |
| Blinking amber | BIOS/Rommon is booting. | ||
| Amber | BIOS/Rommon has completed booting, and system is at Rommon prompt or booting platform software. | ||
| Off | System is not out of reset or BIOS image is not loadable. |
Compare to Similar Items
| Technical Specifications | ISR4461/K9 | ISR4451-X/K9 | ISR4431/K9 | ISR4351/K9 | ISR4331/K9 | ISR4321/K9 | ISR4221/K9 |
| Aggregate Throughput | 1.5Gbps | 1 Gbps to
2 Gbps |
500 Mbps to
1 Gbps |
200 Mbps to
400 Mbps |
100 Mbps to
300 Mbps |
50 Mbps to
100 Mbps |
35 Mbps to 75 Mbps |
| Total onboard WAN or LAN 10/100/1000 ports | 4 | 4 | 4 | 3 | 3 | 2 | 2 |
| RJ-45-based ports | 4 | 4 | 4 | 3 | 2 | 2 | 2 |
| SFP-based ports | 4 | 4 | 4 | 3 | 2 | 1 | 1 |
| Enhanced service-module slots | 3 | 2 | 0 | 2 | 1 | 0 | 0 |
| Doublewide service-module slots | 2 | 1 (assumes no singlewide SM-X modules installed) | 0 | 1 (assumes no singlewide SM-X modules installed) | 0 | 0 | 0 |
| NIM slots | 3 | 3 | 3 | 3 | 2 | 2 | 2 |
| OIR (all I/O modules) | Yes | Yes | Yes | Yes | Yes | Yes | No |
| Onboard ISC slot | 1 | 1 | 1 | 1 | 1 | 1 | No |
ISR4331/K9 Specification
ISR4331/K9 Specifications |
|
| Aggregate Throughput (Default) | 100 Mbps |
| Aggregate Throughput (Performance License) | 300 Mbps |
| Aggregate CEF Only[5] Throughput (Boost License) | Over 2Gbps |
| Total onboard WAN or LAN 10/100/1000 ports | 3 |
| Total onboard WAN or LAN 10Gbps ports | – |
| RJ-45-based ports | 2 |
| SFP-based ports | 2 |
| Enhanced service-module slots | 1 |
| Doublewide service-module slots | 0 |
| NIM slots | 2 |
| OIR (all I/O modules) | Yes |
| Onboard ISC slot | 1 |
| Default memory double-data-rate 3 (DDR3) error-correction-code (ECC) DRAM (Combined control/services/data planes) | 4 GB |
| Maximum memory DDR3 ECC DRAM (Combined control/services/data planes) | 16 GB |
| Default memory DDR3 ECC DRAM (data plane) | NA |
| Maximum memory DDR3 ECC DRAM (data plane) | NA |
| Default memory DDR3 ECC DRAM (control/services plane) | NA |
| Maximum memory DDR3 ECC DRAM (control/services plane) | NA |
| Default flash memory | 4 GB |
| Maximum flash memory |
16 GB |
| External USB 2.0 slots (type A) |
1 |
| USB console port -type B mini (up to 115.2 kbps) | 1 |
| Serial console port – RJ45 (up to 115.2 kbps) | 1 |
| Serial auxiliary port – RJ45 (up to 115.2 kbps) | 1 |
| Power-supply options | Internal: AC and PoE, DC* (*4331-DC) |
| Redundant power supply | N/A |
| Power Specifications | |
| AC input voltage | 100 to 240 VAC auto ranging |
|
Input Voltage |
24 – 60V |
| Input Current | 14 – 5A |
|
AC input frequency |
47 to 63 Hz |
| AC input current range, AC power supply (maximum) | 3 to 1.3A |
| Sizes and Weights | |
| Dimensions (H x W x D) |
1.75 x 17.25 x 17.25 in (44.45 x 438.15 x 438.15 mm) |
| Rack height | 1 Rack Unit (1RU) |
| Typical weight (fully loaded with modules) | 16.1 lb (7.3 kg) |
| Packaging Weight |
4.6 lb (2.1 kg) |
| Airflow |
I/O side to bezel side |
| MTBF (Hours) | 587250 |
| Operating Conditions | |
|
Temperature |
32 to 104°F (0 to 40°C) |
| Altitude |
0 – 6,560 ft. (0 – 2,000 m) |







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