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3300 ICP Hardware User Guide
88
Release 3.3
Digital Service Unit
Digital Service Unit Components
A DSU cabinet holds up to four DSU cards and two FIMs. The DSU cards provide digital trunk
interfaces for public or private network access and specialized digital functions (such as
messaging, expanded conference, and ISDN service). The FIMs support the transmission of
voice and data signals between nodes.
The DSU cabinet consists of the following components:
•
Cabinet Frame: The DSU cabinet is separated into two shelves. Shelf 1 is located at the
bottom of the cabinet and Shelf 2 is located at the top of the cabinet (both shelves are at
the front of the cabinet). Shelf 1 consists of slots 1 to 6 and contains 2 FIMs and 4 DSUs.
Shelf 2 consists of two Peripheral Resource Cards (PRCs).
•
Power Supply: The 200 Watt AC power supply provides power for the cabinet. The power
supply fan cools the cabinet.
•
Peripheral Resource Cards: The peripheral resource cards provide additional circuitry to
support the distributed architecture. These cards are installed in Shelf 2, slots 1 and 6.
Summary of Contents for Navigator 3300 ICP
Page 1: ...HARDWARE USER GUIDE ...
Page 2: ......
Page 9: ...Chapter 1 Before You Begin ...
Page 10: ...3300 ICP Hardware User Guide 2 Release 3 3 ...
Page 14: ...3300 ICP Hardware User Guide 6 Release 3 3 ...
Page 15: ...Chapter 2 Specifications ...
Page 16: ...3300 ICP Hardware User Guide 8 Release 3 3 ...
Page 95: ...Specifications Release 3 3 87 ...
Page 117: ...Chapter 3 Installing ...
Page 118: ...3300 ICP Hardware User Guide 110 Release 3 3 ...
Page 180: ...3300 ICP Hardware User Guide 172 Release 3 3 ...
Page 181: ...Chapter 4 Install Upgrades and FRUs ...
Page 182: ...3300 ICP Hardware User Guide 174 Release 3 3 ...
Page 239: ...Chapter 5 Programming ...
Page 240: ...3300 ICP Hardware User Guide 232 Release 3 3 ...
Page 243: ...Chapter 6 Troubleshooting ...
Page 244: ...3300 ICP Hardware User Guide 236 Release 3 3 ...
Page 257: ...Troubleshooting Release 3 3 249 Troubleshoot LS GS Trunk Card ...
Page 258: ...3300 ICP Hardware User Guide 250 Release 3 3 ...