Linksys SPA2102

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Cisco SPA2102 Phone Adapter with Router
Linksys SPA2102
router, analog phone gateway, VoIP phone adapter
Sipura SIP316FF
Flash1 Chip
Macronix 29LV160C8TC-90G
Flash1 Size
2 MiB2,097,152 B <br />16,384 Kib <br />2,048 KiB <br />16 Mib <br />0.00195 GiB <br />
RAM1 Size
8 MiB8,388,608 B <br />65,536 Kib <br />8,192 KiB <br />64 Mib <br />0.00781 GiB <br />
RAM1 Chip
ISSI IC42S16400-7TG
ETH chip1
Micrel SPN801024
Ethernet Port Count

Ethernet OUI: 00:0E:08

Expansion IF types
none specified
5 VDC, 1 A
Connector type

Additional chips
Programmable CMOS SLIC/Codec with ringing/battery voltage generation; Silicon Labs; Si3215-FM;;2


Default IP address:
the IP is used by 789 additional devices
of which 6 are Linksys devices
Default login user: user & admin
Default login password: blank

Foxconn U54V017
ASIN B000FKP55K Flag of the United States.svg
Country of manuf China

For a list of all currently documented Micrel (Kendin) chipsets with specifications, see Micrel.
For a list of all currently documented Sipura SoC's with specifications, see Sipura.

For a list of all currently documented Linksys device with specifications, see Linksys.


See also: Sipura

  • The Linksys SPA2102 is gateway router/analog telephony adapter (commonly referred to
as ATA) with two FXS ports, which allows for the connection of two “normal” telephones to
a VoIP provider using the Session Initiation Protocol (SIP) protocol. The product is based
on the SPA-2100, made by Sipura Technology, which was acquired by Cisco in 2005.
  • The ethernet chip is likely a custom version made for Sipura. The board picture
(see bellow) shows a Micrel SPN801024 with lot number GFK7344.1M01.
  • Another picture (found here) shows a Micrel SPNZ801030 whit lot number GFS7976.1.
Both lot numbers are close to GFK7343.1MEG and GFS7975.1MED found in the Micrel
MTBF report (see links & screenshot), which identify a KS8842 chip.


MX29LV160DTB Datasheet
MX29LV160AT Datasheet
IC42S16400 DatasheetISSI (Integrated Silicon Solution, Inc.)
Si3215 Datasheet
Si321x Evaluation Board Documentation
Micrel Product Overview (Switches)
Micrel MTBF Report / Lot Number list
KS8842M Product Brief
KS8842M Datasheet (mirror)

Links of Interest

Quick Start Guide
Aministration guide
User Guide (babyTEL)
Linksys SPA provisioning Guide
Release notes v5.2.10
Release notes v5.2.12
Release notes v5.2.13
Firmware v5.2.3 - v5.2.13
Profile Compiler (SPC) v5.2.3 - v5.2.13 Linux/Win32


Retail Images