Cisco Systems 870 Router User Manual


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







Two-port RJ-48 multiex
trunk-E1 voice/WIC with
drop and insert
This module supports
voice, data, and integrated
voice/data applications
For data applications, the
VWIC provides a two-
port WC for E1/FE1 with
an integrated DSU For a
packet voice solution, the
VWIC provides a dual-
port voice interface card
(VIC) with integrated DSU,
that combines with the
digital T1/E1 packet voice
trunk modules, or the IP
communications voice/fax
modules For multiplexed
voice and data applica-
tions , this module provides
a two-port VWIC E1/FE1
drop and insert multiplexer

Serial and Legacy
Concentration
Voice and Fax Integration
3800 Series–123(11)T
2800 Series–123(8)T4
1841–123(8)T4
When used for a packet
voice solution, requires a
packet voice DSP module
(PVDM2)

One-port G703 Multiex
Trunk Voice/WAN Interface
Card
This module supports
voice, data, and integrated
voice/data applications
For data applications,
the VWIC2 provides a
single-port WIC for T1,
fractional T1, E1 (including
structured G703 with
G704 framing), fractional
E1 or unstructured E1
(G703) with an integrated
DSU/CSU For a packet
voice solution, the VWIC2
provides a single-port
voice interface card (VIC)
with integrated DSU/CSU
For multiplexed voice
and data applications,
this module can partially
provide a VWIC T1/E1
drop and insert multiplexer
(requires two ports) The
module includes a slot for a
dedicated ECAN (EC-MFT)
module

Serial and Legacy
Concentration
Voice and Fax
3800 Series–123(14)T;
124 Mainline
2800 Series–123(14)T;
124 Mainline
When used for a packet
voice solution, requires a
packet voice DSP module
(PVDM2)
Cisco Interface Cards


One-port RJ-48 multiex
trunk-E1 voice/WIC
This module supports
voice, data, and integrated
voice/data applications
For data applications, the
VWIC provides a single-
port WIC for E1/FE1 with
an integrated DSU For a
packet voice solution, the
VWIC provides a single-
port voice interface card
(VIC) with integrated DSU,
that combines with the
digital T1/E1 packet voice
trunk modules, or the IP
communications voice/fax
modules

Serial and Legacy
Concentration
Voice and Fax Integration
3800 Series–123(11)T
2800 Series–123(8)T4
1841–123(8)T4
When used for a packet
voice solution, requires a
packet voice DSP module
(PVDM2)

Two-port RJ-48 multiex
trunk-E1 voice/WIC
This module supports
voice, data, and integrated
voice/data applications
For data applications, the
VWIC provides a two-
port WIC for E1/FE1 with
an integrated DSU For a
packet voice solution, the
VWIC provides a two-
port voice interface card
(VIC) with integrated DSU,
that combines with the
digital T1/E1 packet voice
trunk modules, or the IP
communications voice/fax
modules

Serial and Legacy
Concentration
Voice and Fax Integration
3800 Series–123(11)T
2800 Series–123(8)T4
1841–123(8)T4
When used for a packet
voice solution, requires a
packet voice DSP module
(PVDM2)






Cisco Interface Cards
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