User guide

Release Notes for Cisco IOS Release 12.4T

OL-8012-09 Rev. B0

Platform-Specific Information

Cisco 1812 Routers

The Cisco 1812 router has the following hardware components:

• Two Fast Ethernet ports

• One ISDN-BRI S/T port

• Eight Fast Ethernet switch ports

• Two USB connectors

Cisco 1841 router

The Cisco 1841 router supports any combination of one or two of the following WAN interface cards

(WICs) or multiflex Voice/WAN interface cards (VWICs) (data only), which are shared with the

Cisco 1700, Cisco 2600, and Cisco 3600 series routers:

• WIC-1T: one-port high-speed serial (synchronous/asynchronous).

• WIC-2T: two-port high-speed serial (synchronous/asynchronous).

• WIC-2A/S: two-port low-speed serial (synchronous/asynchronous) (up to 128 kbps).

• WIC-1ADSL: one-port ADSL.

• WIC-1ADSL-I-DG: one-port ADSLoISDN WIC

• WIC-1ADSL-DG: one-port ADSLoPOTS WIC with dying gasp

• WIC-1B-S/T-V3: one-port ISDN WAN interface card (dial and leased line)

• WIC-1B-U-V2: one-port ISDN BRI NT-1 WIC for the Cisco 1700, 1800, 2600, 3600, and 3700

series

• WIC-1DSU-56K4: one-port integrated 56/64-kbps 4-wire DSU/CSU

• WIC-1DSU-T1-V2: updated one-port T1/fractional T1 DSU/CSU WIC

• WIC-1SHDSL: one-port G.SHDSL

• WIC-1SHDSL-V2

• WIC-1AM: one-port analog modem

• WIC-2AM: two-port analog modem

• HWIC-4A/S: four low-speed sync/async serial ports

• HWIC-4ESW: four-port 10/100 Ethernet switch interface card

• HWIC-8A/S-RS232: eight low-speed sync/async serial ports, EIA-232 only

• HWIC-8A: eight async EIA-232 serial ports

• HWIC-AP-G

• HWIC-AP-AG

The following T1/E1 multiflex VWICs are also supported on the Cisco 1841 for data applications only:

• VWIC-1MFT-E1: one-port RJ-48 multiflex trunk (E1)

• VWIC-2MFT-E1: two-port RJ-48 multiflex trunk (E1)

• VWIC-1MFT-G703: one-port RJ-48 multiflex trunk (G.703)

• VWIC-2MFT-G703: two-port RJ-48 multiflex trunk (G.703)

• VWIC-1MFT-T1: one-port RJ-48 multiflex trunk (T1)