Belkin F9K1103 v1xxx

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Belkin F9K1103 v1
Availability: common

Manuf/OEM/ODM Arcadyan WG9117 A23-AK

FCC approval date: 06 May 2011
(Est.) release date: 27 May 2011
UPC: 722868817872 (UPC DB, On eBay)
Country of manuf.: China
Serial Num. Prefix: 12113

Amazon image

B004N625AK (Flag of the United States.svg, On Amazon, On CCC)

Type: wireless router

FCC ID: K7SF9K1103V1
Industry Canada ID: 3623A-F9K1103V1

Power: 12 VDC, 2 A
Connector type: barrel

CPU1: Ralink RT3883 (500 MHz)
FLA1: 8 MiB
8,388,608 B
65,536 Kib
8,192 KiB
64 Mib
0.00781 GiB
(Macronix MX25L6406EM2I-12G)
RAM1: 64 MiB
67,108,864 B
524,288 Kib
65,536 KiB
512 Mib
0.0625 GiB
(EtronTech EM68B16CWPA-25H)

Expansion IFs: USB 2.0
USB ports: 2
Serial: yes, internal, 4-pin header, populated, (57600,8,N,1), 3.3V TTL, J12

WI1 chip1: Ralink RT3883
WI1 802dot11 protocols: an
WI1 MIMO config: 3x3:3
WI1 antenna connector: U.FL
WI2 chip1: Ralink RT3092
WI2 802dot11 protocols: bgn
WI2 MIMO config: 2x2:2
WI2 antenna connector: none

ETH chip1: Ralink RT3883
Switch: Realtek RTL8367R-VB
LAN speed: 10/100/1000
LAN ports: 4
WAN speed: 10/100/1000
WAN ports: 1


Stock bootloader: U-Boot Ralink

Stock FW OS: Linux 2.6.22

Third party firmware supported: Padavan • (List)

Default SSID: belkin.XXX (13 addl. devices), belkin.XXX.5GHz (5 addl. devices)
Default IP address:
the IP is used by 256 additional devices
of which 92 are Belkin devices
Default login user: admin
Default login password: password
admin:password credentials used by 313 additional devices
of which 0 are Belkin devices

802dot11 OUI: 08:86:3B (10 E, 13 W, 2011), 94:44:52 (17 E, 22 W, 2010)
Ethernet OUI: 08:86:3B (10 E, 13 W, 2011), 94:44:52 (17 E, 22 W, 2010)

For a list of all currently documented Ralink chipsets with specifications, see Ralink.
For a list of all currently documented Realtek chipsets with specifications, see Realtek.

'''N750 DB Wireless Dual-Band N+ Router '''

"P/N: 141911720003J R01C" is silkscreened on the board.

The default SSID patterns for this model is:

belkin.XXX (where XXX is the last three octets of the wireless interface MAC for this SSID) and
belkin.XXX.5GHz (MAC = 2.4GHz network MAC + 2, same XXX from the 2.4GHz network).

The guest network is (if enabled) belkin.XXX.guests (MAC = 2.4GHz network MAC + 1, same XXX from the 2.4GHz network).

Links of Interest[edit]

Support page



SmallNetBuilder screenshots show the device with an OUI of 08:86:3B and SSID of belkin_2

third party firmware[edit]




JTAG-Serial Info[edit]


No JTAG port



^ to RAM
© (GND)
© (RxD)
© (TxD)    --> 5 GHz ant (B)
® [3.3]    NC
Hyper terminal Setup in Windows XP
In Windows XP, Click Start Button - All Programs - Accessories - 
   Communication - HyperTerminal
Enter a name for the connection, Click ok
Choose com port you adapter is plugged into, Click ok
 Bits per second = 115200
 Data Bits = 8
 Parity = none
 Stop bits = 1
 Flow control = none
Click ok
Click File - Save As, and select a place to save it to so you 
             don't have to enter the settings again.
Putty Setup in Windows XP
After installing putty, run it
 Serial line = The COM port your using for serial (ie. COM3)
 Speed = 115200
Click on Serial under Connection
 Serial line to connect to = same as above (Serial line)
 Speed (baud) = 115200
 Data bits = 8
 Stop bits = 1
 Parity = none
 Flow control = none
Click Session
 Enter a name for your connection under saved sessions
Click Save
Click Open

Serial Recovery[edit]

USB Info[edit]

vlan Info[edit]


Belkin Images
DarkShadow's Unit




I've gathered some of GPIO functions:

Tested by telnet:

Gathered from OpenWrt:

  • wired/wireless leds are controlled via bit shift register sitting on gpio pins 14 (ctl) and 4 (clk)
  • speed leds are controlled via bit shift register sitting on pins 17 (ctl) and 18 (clk)

Some notes:

  • restore config function doesn't work properly, the router get stucked.
  • PPPoE doesn't work with preselected want port, bridge port must be selected for wan, br0
  • current firmware level is more to instable to use it for a long period of time, if there will be any new releases and if the time permits I'll test them.

Info derived from[edit]

bootloader stuff[edit]

Hardware Modification[edit]

See Also[edit]