User's Manual Chapter 13

Chapter 6: Internal Photographs
AT&T Wireless Services
6-53
FCC Type Acceptance Application
10991 Rev. 1.0 7/6/99
The Time Slot Interchange card provides a non-blocking switching
fabric for routing of 64 kbps PCM traffic channels between the NIF
cards and the three Baseband Shelves.
Figure 6.13—Time Slot Interchange Card (TSI)