Cisco Systems 870 Router User Manual


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







Two-port RJ-48 Multiex
Trunk-T1 Voice/WIC
This module supports
voice, data, and integrated
voice/data applications
For data applications, the
VWIC provides a two-port
WIC for T1/FT1 with an
integrated DSU/CSU For a
packet voice solution, the
VWIC provides a two-port
voice interface card (VIC)
with integrated DSU/CSU,
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
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-T1 Voice/WIC with
Drop and Insert
This module supports
voice, data, and integrated
voice/data applications
For data applications, the
VWIC provides a dual-port
WIC for T1/FT1 with an
integrated DSU/CSU For a
packet voice solution, the
VWIC provides a dual-port
voice interface card (VIC)
with integrated DSU/CSU,
that combines with the
digital T1/E1 packet
voice trunk modules, or
the IP communications
voice/fax modules For
multiplexed voice and data
applications, this module
provides a dual-port VWIC
T1/FT1 with 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)
Cisco Interface Cards








One-port RJ-48 Multiex
Trunk-T1 Voice/WIC
This module supports
voice, data, and integrated
voice/data applications
For data applications, the
VWIC provides a single-
port WIC for T1/FT1 with an
integrated DSU/CSU For a
packet voice solution, the
VWIC provides a single-
port voice interface card
(VIC) with integrated DSU/
CSU, 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
3800 Series–123(11)T
2800 Series–123(8)T4
1841–123(8)T4
1760–122(15)T
When used for a packet
voice solution, requires a
packet voice DSP module
(PVDM2)

Two-port Second-generation
T1/E1 Multiex Trunk
Voice/WAN Interface Card
This module supports
voice, data, and integrated
voice/data applications
For data applications,
the VWIC2 provides a
two-port WIC for T1 or E1
(including structured G703
with G704 framing) with
an integrated DSU/CSU
For a packet voice solution,
the VWIC2 provides a
two-port voice interface
card (VIC) with integrated
DSU/CSU For multiplexed
voice and data applications,
this module provides a
two-port VWIC T1/E1 drop
and insert multiplexer 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
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