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EnGenius ESR1221N

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EnGenius ESR1221N

Manuf/OEM/ODM Senao

FCC approval date: 27 September 2010
UPC: 655216004870 (UPC DB, On eBay)

Amazon image

B0055AZVI6 (Flag of the United States.svg, On Amazon, On CCC)

Type: wireless router

FCC ID: U2M-SR1221N10

Power: 5 VDC, 1 A
Connector type: barrel

CPU1: Realtek RTL8196C
FLA1: 2 MiB
2,097,152 B
16,384 Kib
2,048 KiB
16 Mib
0.00195 GiB
(Brand? Model?)
RAM1: 16 MiB
16,777,216 B
131,072 Kib
16,384 KiB
128 Mib
0.0156 GiB
(Brand? Model?)

Expansion IFs: none specified

WI1 chip1: Realtek RTL8188RE
WI1 802dot11 protocols: bgn
WI1 MIMO config: 1x1:1
WI1 antenna connector: none

ETH chip1: Realtek RTL8196C
Switch: Realtek RTL8196C
LAN speed: 10/100
LAN ports: 4
WAN speed: 10/100
WAN ports: 1


Default IP address:
the IP is used by 729 additional devices
of which 26 are EnGenius devices
Default login user: admin
Default login password: admin
admin:admin credentials used by 1185 additional devices
of which 49 are EnGenius devices

802dot11 OUI: none specified

For a list of all currently documented Realtek chipsets with specifications, see Realtek.
Regarding third party firmware support, Realtek SoC support in OpenWrt
+ (success) RTL8196C port status. on the OpenWrt Forum
and the Realtek thread on the DD-WRT Forum may be of interest.

150Mbps Wireless N Router
Product page
Datasheet (EnGenius Singapore)

"7016A0410014 Ver: 1.10" is silkscreened on the board in the FCC photos.

The FCC test report lists the Sitecom WL-340 v2 003, Encore ENHWI-1AN4, EnGenius ESR1221N2, Sitecom WL-341 v2 003, Sitecom WL-342 v2 003, and Encore ENHWI-2NA4 as identical models. The FCC documents also suggest that at least one model (or submodel) has PoE capability.

The default SSID pattern for the unit is likely EnGeniusXXXXXX.