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Single-Vendor Support
Because the DSU/CSU plays an equally critical role as the router in helping to ensure WAN connectivity, many customers feel that it is important to
have a support contract for both. Support for the integrated DSU/CSU is included in the maintenance contract for the Cisco router at no extra charge.
However, if the router and DSU/CSU are from different vendors, it can be inconvenient to manage support contracts from multiple vendors. Further,
when you need service and support, it is difficult to pinpoint a problem when phone calls have to be made to different vendors.
Cisco provides single-vendor support for its routers, integrated DSU/CSUs, and other network equipment. With its dedication to reliable support and
customer satisfaction, Cisco offers numerous support programs to meet your business needs, including onsite support. A single phone call to a single
vendor—Cisco takes full ownership of support when needed.
Enhanced Reliability
An integrated solution has fewer components; hence, fewer points of failure (for example, one less power supply and fewer cables). This leads
to enhanced reliability.
Consistency with WIC-1DSU-T1
The Cisco T1 DSU/CSU WIC offers all of the features of the WIC-1DSU-T1 and can be smoothly deployed without requiring any
additional learning.
Table 1. Cisco T1 DSU/CSU WIC Features
WIC-1DSU-T1-V2 WIC-1DSU-T1
Description
Updated one-port T1/fractional T1 DSU/CSU WIC One-port T1/fractional T1 DSU/CSU WIC
Router families supported
1700* (1720, 1721, 1751, 1760), 2600XMs, 2691,
3631, 3725, 3745, and ICS 7750
1600**, 1600R2**, 1700***, 2600, 2600XM, 3600,
and 3700
Wet T1 Capable
Yes No
Short Cable Length
Command
Yes; used to configure attenuation for short cable
lengths (<660 feet)
No
Network Equipment Building
Standards (NEBS)
Yes: Type I/III No
* Cisco 1701, 1710, 1711, and 1712 are fixed-configuration routers and do not support the WIC-1DSU-T1-V2. Also, the Cisco 1750 does not support this WIC
** Note: Cisco 1600 and 1600R routers are no longer sold by Cisco
*** Cisco 1701, 1710, 1711, and 1712 are fixed-configuration routers and do not support the WIC-1DSU-T1.
SPECIFICATIONS
Cisco IOS Software Release
• 12.2(15)ZL PCBU special [Cisco 1700 Series only]
• 12.2(17) Mainline
• 12.3(1) Mainline
• 12.3(1st)T