Figure 1 shows the appearance of Cisco ISR4431/K9.
 
Table 1 shows the Quick Specs.
| 
			 Product Code  | 
			
			 Cisco ISR4431/K9  | 
		
| 
			 Aggregate Throughput  | 
			
			 500 Mbps to 1 Gbps  | 
		
| 
			 Total onboard WAN or LAN 10/100/1000 ports  | 
			
			 4  | 
		
| 
			 RJ-45-based ports  | 
			
			 4  | 
		
| 
			 SFP-based ports  | 
			
			 4  | 
		
| 
			 Enhanced service-module (SM-X) slot  | 
			
			 0  | 
		
| 
			 NIM (Network Interface Modules) slots  | 
			
			 3  | 
		
| 
			 Onboard ISC slot  | 
			
			 1  | 
		
| 
			 DDRM (data plane)  | 
			
			 2 GB (default) / 2 GB (maximum)  | 
		
| 
			 DDRM (control/services plane)  | 
			
			 4 GB (default) / 16 GB (maximum)  | 
		
| 
			 Flash Memory  | 
			
			 8 GB (default) / 32 GB (maximum)  | 
		
| 
			 Power-supply options  | 
			
			 Internal: AC, DC, and PoE  | 
		
| 
			 Rack height  | 
			
			 1 RU  | 
		
| 
			 Dimensions (H x W x D)  | 
			
			 43.9 x 438.15 x 507.2 mm  | 
		
| 
			 Package Weight  | 
			
			 20.88 Kg  | 
		
Figure 2 shows the front panel of Cisco ISR4431/K9.
 
Note:
| 
			 ①  | 
			
			 Power supply unit  | 
			
			 ③  | 
			
			 Router power On/Off switch  | 
		
| 
			 ②  | 
			
			 LEDs  | 
			
			 ④  | 
			
			 Optional power supply unit  | 
		
·LEDs include 12 indicators.
Table 2 shows the LED descriptions.
| 
			 LEDs  | 
			
			 Represents  | 
			
			 Color  | 
			
			 Description  | 
		
| 
			 PSU  | 
			
			 Power Supply Unit (P0 and P1) Status  | 
			
			 Green  | 
			
			 PSU is on and is providing power.  | 
		
| 
			 Amber  | 
			
			 PSU is on but with errors or in a failure condition.  | 
		||
| 
			 Off  | 
			
			 Power supply is turned off.  | 
		||
| 
			 GE POE  | 
			
			 Internal PoE Daughter Card Status  | 
			
			 Green  | 
			
			 PSU is installed and providing power  | 
		
| 
			 Amber  | 
			
			 PSU is installed but in a failure condition.  | 
		||
| 
			 Off  | 
			
			 PSU is off.  | 
		||
| 
			 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.  | 
		||
| 
			 POE BOOST  | 
			
			 Power Over Ethernet Boost Mode  | 
			
			 Green  | 
			
			 Two PoE power supplies are installed and operating in boost mode.  | 
		
| 
			 Off  | 
			
			 This can mean one of the following: ·No PoE PSU installed. ·One PoE PSU installed. ·Two PoE PSUs installed and operating in redundant mode.  | 
		||
| 
			 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.  | 
		
Figure 3 shows the back panel of Cisco ISR4431/K9.
 
Note:
| 
			 ①  | 
			
			 GE management port  | 
			
			 ⑤  | 
			
			 Console port  | 
		
| 
			 ②  | 
			
			 Auxiliary port  | 
			
			 ⑥  | 
			
			 GE Ports  | 
		
| 
			 ③  | 
			
			 USB Type A port  | 
			
			 ⑦  | 
			
			 NIM Slots  | 
		
| 
			 ④  | 
			
			 USB Type B mini port  | 
			
			 
  | 
		|
			Cisco ISR4431/K9 Specification | 
		|
| 
			 Aggregate Throughput  | 
			
			 500Mbps to 1Gbps  | 
		
| 
			 Total onboard WAN or LAN 10/100/1000 ports  | 
			
			 4  | 
		
| 
			 RJ-45-based ports  | 
			
			 4  | 
		
| 
			 SFP-based ports  | 
			
			 4  | 
		
| 
			 Enhanced service-module slots  | 
			
			 0  | 
		
| 
			 Doublewide service-module slots  | 
			
			 0  | 
		
| 
			 NIM slots  | 
			
			 3  | 
		
| 
			 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)  | 
			
			 NA  | 
		
| 
			 Maximum memory DDR3 ECC DRAM (Combined control/services/data planes)  | 
			
			 NA  | 
		
| 
			 Default memory DDR3 ECC DRAM (data plane)  | 
			
			 2 GB  | 
		
| 
			 Maximum memory DDR3 ECC DRAM (data plane)  | 
			
			 2 GB  | 
		
| 
			 Default memory DDR3 ECC DRAM (control/services plane)  | 
			
			 4 GB  | 
		
| 
			 Maximum memory DDR3 ECC DRAM (control/services plane)  | 
			
			 16 GB  | 
		
| 
			 Default flash memory  | 
			
			 8 GB  | 
		
| 
			 Maximum flash memory  | 
			
			 32 GB  | 
		
| 
			 External USB 2.0 slots (type A)  | 
			
			 2  | 
		
| 
			 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, DC, and PoE  | 
		
| 
			 Redundant power supply  | 
			
			 Internal: AC, DC, and PoE  | 
		
| 
			 AC input voltage  | 
			
			 100 to 240 VAC autoranging  | 
		
| 
			 AC input frequency  | 
			
			 47 to 63 Hz  | 
		
| 
			 AC input current range, AC power supply (maximum)  | 
			
			 3 to 1.3A  | 
		
| 
			 AC input surge current  | 
			
			 60 A peak and less than 5 Arms per half cycle  | 
		
| 
			 Typical power (no modules) (watts)  | 
			
			 65  | 
		
| 
			 Maximum power with AC power supply (watts)  | 
			
			 250 (no PoE)  | 
		
| 
			 Maximum power with PoE power supply (platform only) (watts)  | 
			
			 500 with PoE redundant  | 
		
| 
			 Maximum endpoint PoE power available from PoE power supply (watts)  | 
			
			 250 W with optional redundancy  |