Cisco 1-Port ISDN BRI NT-1 WAN Interface Card for 1700/2600/3600/3700 Series Routers
Contents
1. 100 bps 50 ppm Receive Bit Rate 2 048 Mbps 100 bps 50 ppm Data Rate 1 984 Mbps framed mode per E1 port Clocking Internal and loop recovered from network E1 National Bits Fixed nonconfigurable Encoding High density bipolar three HDB3 DTE Interface WIC mode Fractional service DTE Interface VIC mode G 704 or structured DCE Interface G 704 or structured Dimensions H x W x D MFT VWIC2 0 8 x 3 1 x 4 8 in 2 1 x 7 9 x 12 2 cm Weight e 1 port VWIC2 1MFT T1 E 0 125 lb 57 g e 2 port VWIC2 2MFT T1 E1 0 137 lb 62 g Diagnostics e ANSI T1 403 Annex B V 54 loopup down code recognition network loopback and user initiated loopbacks network payload loopback local DTE loopback and remote line codes V 54 loop up and loop down e Bit error rate testing BERT patterns All 0 s all 1 s 1 2 1 8 3 24 QRW QRSS 63 511 2047 and V 54 T1 403 annex B bit patterns and two user programmable 24 bit patterns e Alarm detection Alarm indication signal AIS time slot 16 AIS remote alarm far end block error FEBE out of frame OOF cyclic redundancy check CRC multiframe OOF signaling multiframe OOF frame errors CRC errors loss of network signal red alarm loss of network frame receive blue alarm AIS from network receive yellow from network performance reports or error counters CRC errored seconds burst errored seconds severely errored seconds Ft and Fs framing errors for SF framing FPS framing2. Corporate Headquarters European Headquarters Americas Headquarters Asia Pacific Headquarters Cisco Systems Inc Cisco Systems International BV Cisco Systems Inc Cisco Systems Inc 170 West Tasman Drive Haarlerbergpark 170 West Tasman Drive 168 Robinson Road San Jose CA 95134 1706 Haarlerbergweg 13 19 San Jose CA 95134 1706 28 01 Capital Tower USA 1101 CH Amsterdam USA Singapore 068912 www cisco com The Netherlands www cisco com www cisco com Tel 408 526 4000 www europe cisco com Tel 408 526 7660 Tel 65 6317 7777 800 553 NETS 6387 Tel 31 0 20 357 1000 Fax 408 527 0883 Fax 65 6317 7799 Fax 408 526 4100 Fax 31 0 20 357 1100 Cisco Systems has more than 200 offices in the following countries and regions Addresses phone numbers and fax numbers are listed on the Cisco Website at www cisco com go offices Argentina Australia Austria Belgium Brazil e Bulgaria Canada Chile e China PRC Colombia Costa Rica Croatia Cyprus Czech Republic Denmark Dubai UAE e Finland France Germany Greece Hong Kong SAR e Hungary e India Indonesia Ireland Israel Italy Japan Korea Luxembourg Malaysia e Mexico The Netherlands e New Zealand Norway e Peru e Philippines Poland Portugal Puerto Rico Romania Russia Saudi Arabia Scotland Singapore Slovakia Slovenia South Africa Spain Sweden Switzerland Taiwan Thailand Turkey Ukraine United Kingdom United States Vene
3. HDY 2 slot IP Communications Enhanced Voice Fax Network Modules NM HD 2VE IP Communications High Density Digital Voice Fax Network Modules NM HDV2 IP Communications High Density Digital Voice NM with 1 T1 E1 part number NM HDV2 1T1 E1 IP Communications High Density Digital Voice NM with 2 T1 E1 part number NM HDV2 2T1 E1 and access routers with on board VIC WIC HWIC slots The NM HDV NM HD 2VE NM HDV2 NM HDV2 1T1 El1 NM HDV2 2T1 E1 and access routers support H 323 Session Initiation Protocol SIP Media Gateway Control Protocol MGCP and Skinny Client Control Protocol SCCP based VoIP FRF 11 and FRF 12 based VoFR and ATM Adaption Layer 5 AALS based voice over ATM VoATM industry standards Note For each of these packet voice applications VoIP VoFR or VoATM an appropriate WIC also is required Packet Voice Solutions Echo Cancellation for Demanding Network Conditions The Cisco MFT VWIC2 interface cards have an onboard slot for a 32 or 64 channel Cisco MFT Dedicated ECAN Module part number EC MFT 32 or EC MFT 64 see Figure 2 These optional daughter cards provide a dedicated hardware resource that runs the Cisco Enhanced ITU T G 168 ECAN feature The processing and memory resources of the dedicated ECAN module help enable configuration of the echo canceller with predefined settings and an extended 128 ms echo tail buffer providing a robust echo cancellation performance for demanding network environments The
4. Modules VWIC2 1MFT T1 E1 12 3 14 T VWIC2 2MFT T1 E1 12 3 14 T VWIC2 1MFT G703 12 3 14 T VWIC2 2MFT G703 12 3 14 T 4 Cisco 3700 Chassis WIC Slots 12 3 14 T 12 3 14 T 12 3 14 T 12 3 14 T Cisco 3700 with Voice Capable or Data Only 12 3 014 T 12 3 14 T 12 3 14 T 12 3 14 T Network Modules Cisco 2800 Chassis HWIC Slots 12 3 14 T 12 304 T 12 3 14 T 12 3014 T Cisco 2800 with Voice Capable or Data Only 12 3 14 T 12 3014 T 12 3 14 T 12 3 14 T Network Modules Cisco 3800 Chassis HWIC Slots 12 3 14 T 12 304 T 12 3 14 T 12 3014 T Cisco 3800 with Voice Capable or Data Only 12 3 14 T 12 304 T 12 3 14 T 12 3 14 T Network Modules j VWIC2 1MFT G703 is not supported on NM HDV and NM HD 2VE H VWIC2 2MFT G703 is not supported on NM HD 2VE mae AIM VOICE 30 or AIM ATM VOICE 30 module is required for voice Support for voice applications only in VIC slot of Cisco 1751 and 1760 Network Module Summary Voice capable network modules Digital T1 E1 Packet Voice Trunk Network Module NM HDV 2 slot IP Communications Enhanced Voice Fax Network Modules NM HD 2VE and IP Communications High Density Digital Voice Fax Network Modules NM HDV2 IP Communications High Density Digital Voice NM with 1 T1 E1 part number NM HDV2 1T1 E1 and IP Communications High Density Digital Voice NM with 2 T1 E1 part number NM HDV2 2T1 E1 Data only network modules 2 WAN Card Slot Network Module NM 2W 1 10 100 Ethernet 1 4 16
5. interface cards increase configuration flexibility on Cisco Systems multiservice access routers eliminating the need for two single port T1 E1 WICs Increasing the T1 E1 port density in a single WIC or HWIC slot helps enable applications such as local serial aggregation with the 2 port high speed serial WAN Interface Card or 2 port asynchronous synchronous serial WAN Interface Card part number WIC 2T or WIC 2A S or ISDN backup with the 1 Port ISDN BRI S T WAN Interface Card part number WIC 1B S T V3 or the 1 port ISDN with NT 1 WAN Interface Card part number WIC 1B U V2 The Cisco MFT VWIC2 cards also support a channelized capability where the T1 or E1 service can be flexibly split into two or more fractional channel groups Thus a single physical port can provide connection to multiple sites Note If this mode is chosen only a single port can be supported in each WIC slot The Second generation 1 and 2 port G 703 Multiflex Trunk voice WAN Interface Cards product numbers VWIC2 1MFT G703 and VWIC2 2MFT G703 support not only unstructured E1 G 703 but also all the features of the other Cisco MFT VWIC2 cards including drop and insert Additional flexibility is provided on the 2 port G 703 Multiflex Trunk voice WAN Interface Cards with the capability to configure one port for unstructured E1 G 703 while configuring the other for standard framed E1 Multiplexed Data and Voice Solutions 2 Port T1 E1 Drop and Insert Multiplexer with Integ
6. single purpose interfaces e Maximizes investment protection e Simplifies network configuration and sparing through the support of both T1 and E1 on the same card e Offers multifunction support for LAN to LAN routing multiplexed data and voice and packetized voice e Offers ability to share modules between Cisco 1700 1800 2800 and 3700 series and Cisco 3800 routers select Cisco 2600 and 3600 series routers and select network modules refer to Table 1 for details e Increases configuration flexibility and reduces cost for data applications by allowing individual ports to be clocked from independent clock sources not supported for voice and not supported with ATM Voice Advanced Integration Module part number AIM ATM VOICE 30 with ATM Voice Advanced Integration Module part number AIM ATM AIM VOICE 30 AIM ATM VOICE 30 e Supports E1 configurations for both balanced and unbalanced modes e Supports G 703 models unstructured E1 G 703 for using the full 2 048 Mbps e Eliminates costly external third party CSUs DSUs and drop and insert multiplexers e Provides optional support of a Cisco MFT Dedicated ECAN Module for demanding network conditions e Simplifies remote network management by allowing a single management tool such as CiscoView or CiscoWorks to support router CSU DSU or drop and insert multiplexer Maximizes System Resources e Increases T1 E1 port density on the supported Cisco 1700 1800 2600 2800 3600 3700 and 3800 acces
7. 1 T1 E1 part number NM HDV2 1T1 E1 IP Communications High Density Digital Voice NM with 2 T1 E1 part number NM HDV2 2T1 E1 2 slot IP Communications Enhanced Voice Fax Network Modules NM HD 2VE 2 WAN Card Slot Network Module NM 2W 1 10 100 Ethernet 1 4 16 Token Ring 2 WAN Card Slot NM NM 1FE1R2W 1 10 100 Ethernet 2 WAN Card Slot Network Module NM 1FE2W V2 and 2 10 100 Ethernet 2 WAN Card Slot Network Module NM 2FE2W V2 when used with a supported access router All contents are Copyright 1992 2005 Cisco Systems Inc All rights reserved Important Notices and Privacy Statement Page 1 of 10 The Cisco MFT VWIC2 cards are offered in single and dual port versions which can be used and then redeployed as network requirements change thereby addressing several applications e T1 E1 data The Cisco 1 and 2 port T1 E1 MFT VWIC2 versions act as a WIC supporting T1 fractional T1 E1 including structured G 703 with G 704 framing fractional E1 and Elstructured G 703 applications To simplify remote management these MFT VWIC2 cards integrate a fully managed DSU CSU for T1 deployments and a fully managed DSU for E1 deployments e E1 G 703 data The Cisco 1 and 2 port G 703 MFT VWIC2 versions act as a WIC supporting T1 fractional T1 E1 including structured G 703 with G 704 framing fractional E1 and unstructured E1 G 703 applications To simplify remote management the G 703 version includes a fully managed DSU The G 70
8. 3 versions also support all the capabilities on the T1 E1 versions e T1 E1 packet voice The Cisco 1 and 2 port T1 E1 MFT VWIC2 voice and WAN versions act as a VIC supporting packet voice applications by providing T1 fractional T1 E1 and fractional E1 connections to private branch exchanges PBXs and central offices thereby enabling new services and reducing voice and fax toll charges e Mixed data and packet voice The Cisco MFT VWIC2 interface cards can simultaneously support both data and voice reducing the complexity and number of network components and facilitating a graceful migration to bandwidth efficient packet voice e Mixed data and packet voice with drop and insert The Cisco MFT VWIC2 cards can be deployed as a T1 E1 drop and insert multiplexer with integrated DSUs CSUs reducing the complexity of the network and the cost of the central office ports by efficiently combining time division multiplexing TDM voice PBX IP voice and data on the same trunks Note the Cisco 1721 1751 and 1760 support drop and insert between two ports over a single VWIC2 card while Cisco 2800 and 3800 ISR routers supports drop and insert between two ports over a single VWIC2 card and two ports over two different VWICs KEY BENEFITS Reduces Networking Lifecycle Costs e Enables graceful migration from data only to multiplexed data and voice to packetized voice applications e Reduces training deployment management and sparing inventory over
9. 32 and 64 channel configurations of the dedicated ECAN modules match the requirements of the Cisco 1 and 2 port MFT VWIC2 cards respectively Figure 2 Cisco 2 Port T1 E1 MFT VWIC2 part number VWIC2 2MFT T1 E1 with an Optional 64 Channel MFT Dedicated ECAN Module part number EC MFT 64 Data Solutions 1 and 2 Port T1 E1 WIC with Integrated DSU CSU The Cisco MFT VWIC2 interface cards simplify branch office connectivity by integrating the functions of a router T1 E1 and fractional T1 E1 serial interface with a fully managed DSU CSU When used for data only WAN connectivity the Cisco MFT VWIC2 cards support numerous functions including Cisco IOS Software Command Line Interface CLI initiated loopback control similar to the popular 1 Port T1 Fractional T1 DSU CSU WAN Interface Card part number WIC 1DSU T1 Additionally the MFT VWIC2 also is offered in dual port versions including dual T1 E1 configurations enabling increased WAN port density in Cisco 1800 2800 and 3700 series and Cisco 3800 routers and supported Cisco 1700 2600 and 3600 series access routers The T1 E1 MFT VWIC2 versions include integrated DSU functions for E1 deployments and integrated CSU and DSU functions for T1 deployments simplifying remote network management 2005 Cisco Systems Inc All rights reserved Important notices privacy statements and trademarks of Cisco Systems Inc can be found on cisco com Page 3 of 11 The Cisco 2 port MFT VWIC2
10. Cisco SYSTEMS DATA SHEET CISCO SECOND GENERATION 1 AND 2 PORT T1 E1 MULTIFLEX TRUNK VOICE WAN INTERFACE CARDS This flexible multiservice solution supports multiple data voice and integrated data and voice applications facilitating the migration from data only or channelized data and voice to packet voice solutions and simplifying deployment management and sparing INTRODUCTION The Cisco Second generation 1 and 2 port T1 E1 Multiflex Trunk Voice WAN Interface MFT VWIC2s support data and voice applications on the Cisco 1721 data only 1751 and 1760 Modular Access Routers the Cisco 2600XM Multiservice Router the Cisco 2691 Multiservice Platform the Cisco 3662 Telco Versatile DCN Access Platform the Cisco 3725 and 3745 Multiservice Routers and the Cisco 1841 data only 2801 2811 2821 2851 3825 and 3845 Integrated Services Routers The Cisco MFT VWIC2 combines WAN interface card WIC and voice interface card VIC functions to provide unparalleled flexibility versatility and investment protection through its many uses Customers who choose to integrate data and voice in multiple steps preserve their investment in a T1 E1 WAN interface because the Cisco MFT VWIC2 cards can be reused in packet voice applications The 2 port T1 E1 MFT VWIC2 is shown below Figure 1 Cisco 2 Port T1 E1 MFT VWIC2 part number VWIC2 1MFT T1 E1 We MATE The Cisco MFT VWIC2 interface cards add numerous improvements over the Cisco 1 and 2
11. Token Ring 2 WAN Card Slot NM NM 1FEIR2W 1 10 100 Ethernet 2 WAN Card Slot Network Module NM 1FE2W V2 and 2 10 100 Ethernet 2 WAN Card Slot Network Module NM 2FE2W V2 Table 2 Cisco MFT VWIC2 Card Feature Comparison Part Number Number T1 Support E1 Support Unstructured E1 Data Support Voice Support Drop and Insert of Ports G 703 Support WIC Mode VIC Mode Multiplexing VWIC2 1MFT 1 Yes Yes No Yes Yes Yes T1 E1 VWIC2 2MFT 2 Yes Yes No Yes Yes Yes T1 E1 VWIC2 1MFT G703 1 Yes Yes Yes Yes Yes Yes VWIC2 2MFT G703 2 Yes Yes Yes Yes Yes Yes For supported platforms with gt 1 HWIC slots at least 2 MFT VWICs are required to support drop and insert The 1 port MFT VWIC2 card doesn t support Drop and Insert on Cisco 1721 1751 and 1760 2005 Cisco Systems Inc All rights reserved Important notices privacy statements and trademarks of Cisco Systems Inc can be found on cisco com Page 6 of 11 SPECIFICATIONS Table 3 Part Number and Descriptions of Cisco MFT VWIC2 Cards Product Number VWIC2 1MFT T1 E1 VWIC2 2MFT T1 E1 VWIC2 1MFT G703 VWIC2 2MFT G703 Description l Port T1 E1 Multiflex Trunk Voice WAN Interface Card 2 Port T1 E1 Multiflex Trunk Voice WAN Interface Card 1 Port G 703 Multiflex Trunk Voice WAN Interface Card 2 Port G 703 Multiflex Trunk Voice WAN Interface Card Cisco IOS Software Release and Cisco IOS Software Feature Set License Requirements Refer to Table 1 for platform support The Cisco MFT V
12. WIC2 cards are first supported in Cisco IOS Software Release 12 3 14 T and will be first available in the 12 4 1 mainline release Data applications require at a minimum the IP Base feature set license and voice applications require at a minimum the IP Voice feature set license Data Features e T1 El or fractional T1 E1 network interface e nx 64 kbps or n x 56 kbps nonchannelized data rates T1 n 1 to 24 El n 1 to 31 e Standards based including ANSI T1 403 and AT amp T Publication 62411 Network Interfaces Specifications Table 4 T1 Network Interface Specifications T1 Network Interface Transmit Bit Rate Receive Bit Rate Line Code AMI Ones Density Framing Format Output Level line build out LBO Input Level Data Terminal Equipment DTE Interface WIC mode DTE Interface VIC mode Data Communications Equipment DCE Interface 1 544 Mbps 50 bps 32 ppm 1 544 Mbps 50 bps 32 ppm Alternate mark inversion AMI binary 8 zero substitution B8ZS Enforced for n x 56 kbps channels D4 Super Frame SF and Extended Super Frame ESF 0 7 5 or 15 dB 1 dBO down to 24 dBO Fractional service G 704 or structured G 704 or structured 2005 Cisco Systems Inc All rights reserved Important notices privacy statements and trademarks of Cisco Systems Inc can be found on cisco com Page 7 of 11 Table 5 E1 Network Interface Specifications E1 Network Interface Transmit Bit Rate 2 048 Mbps
13. c All rights reserved Important notices privacy statements and trademarks of Cisco Systems Inc can be found on cisco com Page 11 of 11
14. can also be supported the supported 26 37 and 3700 access routers when both ports are on the same network module NM HD 2VE NM HDV2 NM HDV2 1T1 El NM HDV2 2T1 E1 Table 1 Cisco MFT VWIC2 Platform Support and Minimum Cisco IOS Software Release Requirements VWIC2 1MFT T1 E1 VWIC2 2MFT T1 E1 Cisco 1721 1751 and 1760 WIC VWIC Slots Cisco 1751 and 1760 VIC Slot Cisco 2600 Chassis WIC Slots Cisco 2600 with Voice Capable or Data Only Network Modules Cisco 2600XM Chassis WIC Slots Cisco 2600XM with Voice Capable or Data Only Network Modules Cisco 2691 Chassis WIC Slots Cisco 2691 with Voice Capable or Data Only Network Modules Cisco 3620 3640A and 3660 Chassis WIC Slots Cisco 3620 3640A and 3660 with Voice Capable or Data Only Network Modules 12 3 14 T 12 3014 T No No 12 3 14 T 12 3 14 T 12 3 14 T 12 3 14 T No 12 3 14 T 12 3 14 T No No 12 3 14 T 12 3 14 T 12 3 14 T 12 3 14 T No VWIC2 1MFT G703 12 3 14 T 12 304 T No No 12 3 14 T 12 3 14 T 12 3 14 T 12 3 14 T No VWIC2 2MFT G703 12 3 14 T 12 3 14 T No No 12 3 14 T 12 3 14 T 12 3 14 T 12 3 14 T No 2005 Cisco Systems Inc All rights reserved Important notices privacy statements and trademarks of Cisco Systems Inc can be found on cisco com Page 5 of 11 Cisco 3662 Telco Versatile DCN Access Platform with Voice Capable or Data Only Network
15. errors for ESF framing and 24 hour history stored in 15 minute increments e Onboard processor for real time facility data link FDL messaging in band code detection and insertion alarm integration and performance monitoring e Full FDL support and FDL performance monitoring according to configurable standard ANSI T1 403 or AT amp T TR 54016 DSU CSU Selectable DSX 1 cable length in increments from 0 to 655 feet in DSU mode e Selectable DS 1 CSU line build out 0 7 5 and 15 dB 2005 Cisco Systems Inc All rights reserved Important notices privacy statements and trademarks of Cisco Systems Inc can be found on cisco com Page 8 of 11 LEDs e CD data carrier detect Indicates a received error on the telco link e LP loopback Indicates that the interface is in loopback mode e AL alarm Indicates an alarm condition Table 6 Network Management Features Management Feature Telnet or Console Simple Network Management Protocol SNMP SNMP Traps Environmental Remote and local configuration monitoring and troubleshooting from Cisco IOS Software CLI Router and DSU CSU managed by single SNMP agent router DSU and CSU appear as a single network entity to user e Standard MIB MIB II Cisco Integrated DSU CSU MIB e RFC 1406 T1 MIB Including Alarm Detection and Reporting Generated in response to alarms e Operating temperature 0 to 40 C 32 to 104 F e Storage temperature 25 t
16. o 70 C 13 to 158 F e Relative humidity 5 to 85 noncondensing operating 5 to 95 noncondensing nonoperating Regulatory Compliance Table 7 gives regulatory compliance information for the Cisco MFT VWIC2 cards Table 7 Regulatory Compliance for Cisco MFT VWIC2 Cards Safety EMC Immunity e UL 60950 e EN55024 CISPR24 e CAN CSA C22 2 No 60950 EN61000 4 2 e IEC 60950 1 e EN61000 4 3 e EN 60950 1 e EN41000 4 4 e AS NZS 60950 e EN41000 4 5 e EN41000 4 6 e EN41000 4 8 e EN41000 4 11 e EN50082 1 e EN61000 6 2 e ITU T K 21 Telecom Homologation EMC Emissions Network Equipment Building Standards NEBS CFR 47 Part 15 Class B e GR 63 ICES 003 Class B e GR 1089 Type 1 3 EN55022 Class B CISPR22 Class B AS NZS 3548 Class B VCCI Class B EN 300386 EN61000 3 2 EN61000 3 3 Homologation requirements vary by country and interface type For specific country information refer to the online approvals data base at http tools cisco com cse prdapp jsp externalsearch do action externalsearch amp page EXTERNAL SEARCH amp module EXTERNAL SEARCH 2005 Cisco Systems Inc All rights reserved Important notices privacy statements and trademarks of Cisco Systems Inc can be found on cisco com Page 9 of 11 T1 Compliance partial list TIA 968 A CS 03 e Jate ANSI T1 403 E1 Compliance partial list e TBR4 TBR12 TBR13 e ITU T G 703 G 704 G 823 1 431 e S016 Australia Cisco SYSTEMS
17. port T1 E1 Multiflex Voice WAN Interface Cards MFT VWICs The MFT VWIC2 cards have an onboard slot for a Cisco MFT Dedicated Echo Cancellation ECAN Module part number EC MFT 32 or EC MFT 64 offering an enhanced echo cancellation capability for demanding network conditions The T1 E1 MFT VWIC2 cards support both T1 and E1 providing additional flexibility in configuring the Cisco MFT VWIC2s for supporting T1 fractional T1 E1 and fractional E1 for both voice and WAN applications All MFT VWIC2 modules now include the drop and insert multiplexing capability which eliminates costly external third party channel service units data service units CSUs DSUs and drop and insert multiplexers The Cisco 2 port MFT VWIC2s also can enable each port to be clocked from independent clock sources for data applications This independent clocking capability is not supported for voice applications or with the Cisco ATM Voice Advanced Integration Modules part number AIM ATM AIM VOICE 30 AIM ATM VOICE 30 The Cisco MFT VWIC2 cards can either be inserted into the WIC VWIC and high speed WIC HWIC slots on the supported Cisco 1721 1751 1760 1841 2600XM 2691 2801 2811 2821 2851 3662 3725 3745 3825 and 3845 access routers or they can be used in the VWIC slot s on the Digital T1 E1 Packet Voice Trunk Network Module NM HDV IP Communications High Density Digital Voice Fax Network Modules NM HDV2 IP Communications High Density Digital Voice NM with
18. rated DSU CSU The Cisco 1 and 2 port MFT VWIC2 interface cards simplify branch office connectivity by helping enable a Cisco 2800 3700 or 3800 and select Cisco 2600 and 3600 routers to consolidate the functions of a router a fully managed drop and insert multiplexer and a fully managed DSU CSU into a single box It is possible to use two Cisco 1 port MFT VWIC2 interface cards for supporting the drop and insert feature Generally a Cisco 2 port MFT VWIC2 is more appropriate because 2 ports are required Typically a drop and insert multiplexer is used for channelized that is TDM integration of data and voice onto a single T1 fractional T1 E1 or fractional E1 connection to the central office Sharing a line can significantly reduce costs over those of two separate physical lines to the central office Although the normal use is for data and voice sharing of a T1 or El service the drop and insert capability also can be used for video and data or data and data sharing of the service Moreover the integrated drop and insert capability enhances system availability by allowing the Cisco IOS Software to be reloaded while maintaining TDM switching Figure 3 Drop and Insert to Share a T1 FT1 or E1 FE1 Service between Data and TDM Voice Cisco 2600 3600 Multiflex To illustrate consider the example of a PBX with a T1 interface that needs to support a maximum of 10 simultaneous calls With 24 DS 0 channels in a T1 service 1 544 Mbps
19. s routers up to four T1 E1 connections with an integrated CSU DSU in a single network module slot or up to two T1 E1 connections in a single WIC slot e Offers easy migration to bandwidth efficient packet voice enabling new services Customers who choose to integrate data and voice in stages to preserve their investment in WAN interfaces For example the Cisco MFT VWIC2 can support data only applications as a WAN interface and then be reused to integrate data and voice with the drop and insert multiplexer function or configured to support packetized voice voice over IP VoIP or voice over Frame Relay VoFR when installed in the Digital T1 E1 Packet 2005 Cisco Systems Inc All rights reserved Important notices privacy statements and trademarks of Cisco Systems Inc can be found on cisco com Page 2 of 11 Voice Trunk Network Module NM HDY 2 slot IP Communications Enhanced Voice Fax Network Module NM HD 2VE or IP Communications High Density Digital Voice Fax Network Module NM HDV2 IP Communications High Density Digital Voice NM with 1 TI E1 part number NM HDV2 1T1 E1 IP Communications High Density Digital Voice NM with 2 T1 E1 part number NM HDV2 2T1 E1 APPLICATIONS Packet Voice Solutions PBX and Central Office Connectivity The Cisco MFT VWIC2 interface cards through its digital T1 E1 ports supply PBX and public switched telephone network PSTN connectivity for the Digital T1 E1 Packet Voice Trunk Network Module NM
20. ta from another data device is multiplexed with voice calls A more generic term for drop and insert is digital cross connect On Cisco 2600 3700 access routers Digital cross connecting of voice channels is only supported by the Cisco MFT VWIC2 when inserted into the Digital T1 E1 Packet Voice Trunk Network Module NM HDV 2 slot IP Communications Enhanced Voice Fax Network Modules NM HD 2VE or IP Communications High Density Digital Voice Fax Network Modules NM HDV2 IP Communications High Density Digital Voice NM with 1 TI E1 part number NM HDV2 1T1 E1 and IP Communications High Density Digital Voice NM with 2 T1 E1 part number NM HDV2 2T1 E1 For example a single T1 connection from a PBX to the PBX port on the MFT VWIC2 can be divided between DS 0 channels that go to the Digital T1 E1 Packet Voice Trunk Network Module NM HDV for packetized voice for example VoIP and DS 0 channels that are TDM switched to the central office port of the MFT VWIC2 for standard circuit switched voice connectivity On Cisco 2800 3800 integrated services routers digital cross connecting of channels is supported by the Cisco MFT VWIC2 when inserted into an HWIC slot or any of the network modules listed above Analog Cross Connect Solution The time division multiplexing TDM DSO channels can be cross connected with analog voice ports to create an analog cross connect solution This capability is supported on the 1760 2800 and 3800 series routers It
21. this leaves 14 DS 0 channels or 896 kbps of bandwidth for data from the router 14 x 64 kbps The number of DS 0 channels assigned for PBX calls and the remainder that are available for use with router data are fully configurable statically not dynamically In the case of an E1 service 30 DS 0 channels are available for division between voice and router data In this example one port of the Cisco 2 port T1 E1 MFT VWIC2 is connected to the PBX and the other port is connected to the central office The 10 DS 0 channels from the PBX are TDM switched to the central office port and this switching is done on the MFT VWIC2 itself The 2005 Cisco Systems Inc All rights reserved Important notices privacy statements and trademarks of Cisco Systems Inc can be found on cisco com Page 4 of 11 configuration of this TDM switching is flexible so that DS 0 channels on the PBX port do not have to be mapped to DS 0 channels with the same time slots on the central office port The remaining 14 DS 0 channels on the MFT VWIC2 central office port terminate through the backplane connector of the VWIC2 on the router as a single aggregate channel group The 14 DS 0 channels are not individually addressable by the router as a channelized service but can be split into two or more channel groups The drop and insert function is included in all the Cisco MFT VWIC2 interface cards The term drop and insert is normally used when router data or da
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