ADTRAN DSU 56 user manual Appendix A. Pinouts Appendix B. Specifications Index Index-1

Table of Contents

Carrier Detect (CD) - SE 4	2-3
Down - Normal	2-3
Up - On	2-3
Data Set Ready (SR) - SW 5	2-3
Down - On	2-3
Up - Normal	2-3
Remote Digital Loopback (RDL) - SW 6	2-4
Down - Enable	2-4
Up - Disable	2-4
Loop Rate - SW 7	2-4
Down - 56 Kbps	2-4
Up - 64 kbps	2-4
Scrambler - SW 8	2-4
Down - On	2-4
Up - Off	2-4
Network Connections	2-5
DTE Connections	2-5
Chapter 3. Test Modes
Self Test	3-1
Near End Tests	3-2
DTE Only Test	3-2
DTE with Test Pattern (TP)	3-3
DTE and Loop Test (LL)	3-4
Loop Only Test (RT)	3-6
Far End Tests	3-7
Remote Digital	3-7
RDL with Test Pattern (TP)	3-7
Test Pattern (PTRN)	3-8
Remote Tests	3-9
Appendix A. Pinouts	A-1
Appendix B. Specifications	B-1
Index	Index-1

xiv DSU 56/64 User Manual 61200062L1-1