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Four-port Serial
High-speed WAN Interface
Card
Provides four high-
speed serial ports with
connections up to 8 Mbps
on each port The Smart
Serial connector supports
EIA-232, EIA-449, EIA-530,
EIA-530A, V35, and X21
in DTE or DCE mode This
interface card inserts into a
HWIC slot of an Integrated
Services Router
WAN Aggregation
Legacy Protocol Transport
3800 Series–123(14)T
2800 Series–123(14)T
1800 Series–not
supported
Cisco Interface Cards
Four-port Asynchronous
Synchronous High-speed
WAN Interface Card
Provides four low-speed
asynchronous/
synchronous ports with
connections up to 256
Kbps in synchronous
mode and 2304 Kbps
in asynchronous mode
on each port The Smart
Serial connector supports
EIA-232, EIA-449, EIA-530,
EIA-530A, V35, and X21
in DTE or DCE mode This
interface card inserts into a
HWIC slot of an Integrated
Services Router
WAN Aggregation
Legacy Protocol Transport
3800 Series–123(14)T
2800 Series–123(14)T
1800 Series–123(14)T
One-port T1/Fractional T1
DSU/CSU WIC
Provides a single serial
connection at speeds up
to T1 rates This interface
card inserts into a Cisco
mixed-media network
module or directly into a
Cisco WIC expansion slot
Serial and Legacy
Concentration
3800 Series–123(11)T
2800 Series–123(8)T4
1841–123(8)T4
1760–122(17), 123(2)
Supported in chassis WIC
slot or one of the following
mixed-media network
modules: NM-2W, NM-
1FE2W-V2, NM-2FE2W-V2,
or NM-1FE1R2W
One-port 4-wire 56/64
Kbps DSU/CSU WIC
Provides a single serial
connection at speeds up
to 64 Kbps This interface
card inserts into a Cisco
mixed-media network
module or directly into a
Cisco WIC expansion slot
Serial and Legacy
Concentration
3800 Series–123(11)T
2800 Series–23(8)T4
1841–123(8)T4
Supported in chassis WIC
slot or one of the following
mixed-media network
modules: NM-2W, NM-
1FE2W-V2, NM-2FE2W-V2,
or NM-1FE1R2W
Cisco Interface Cards