Cisco Systems ICS-7750 manual WIC-1B-U, WIC-1DSU-56K4, Technical Specifications, 2-41

Chapter 2 Processor Cards Feature Summary

Voice and WAN Interface Cards

WIC-1B-U

The WIC-1B-U card is a one-port ISDN BRI interface card with integrated NT1 (U interface). (Externally, the WIC-1B-U is identical to the WIC-1T card; see Figure 2-12.)

Technical Specifications

Table 2-16lists the technical specifications for the WIC-1B-U card.

Table 2-16 Technical Specifications for WIC-1B-U Card

Type	Description
Interface type	ISDN BRI
Interface	U
Physical connector	RJ-45
Number of connectors/ports	One
Cisco IOS requirement	11.3(2)XA or later
Compliance	FCC Class B device, CE
Safety conformance	UL1950
Spare	WIC-1B-U=

WIC-1DSU-56K4

The WIC-1DSU-56K4 card is a single-port, four-wire 56-kbps CSU/DSU interface card (see Figure 2-15). Use the WIC-1DSU-56K4 card for an all-rate synchronous interface to any point-to-point or multipoint dedicated digital data service (DDS) network compatible with the AT&T Publication 62310 standard. The WIC-1DSU-56K4 card also supports four-wire switched 56-kbps data services, such as AT&T Accunet 56 or Sprint VPN-56, plus many switched data services offered by local exchange carriers.

	Cisco ICS 7750 System Description
78-10360-02		2-41