User`s manual

1. Introduction......................................................................................... 1
CSU/DSU Features...........................................................................2
V.35/EIA-232 Port Features.............................................................2
Specifications...................................................................................2
2. Checking Your Package Contents.........................................................3
3. Installation ...........................................................................................5
Step 1. Set Up the Main Board ............................................................5
Step 2. Set Up Daughterboard..............................................................9
Step 3. Install In Computer................................................................12
Step 4. Configure the Micro Channel SYNC/570i..............................13
Step 5. Other ISA Card Set-up Options..............................................15
4. Diagnostics.........................................................................................17
5. Operation ...........................................................................................21
Switched 56K/DDS Telco Interface................................................21
V.35/EIA-232 Selectable Interface .................................................22
6. In Case of Trouble..............................................................................25
Appendix A: Protecting Your Equipment and Data..................................29
Electrical Surge and Power Protection ................................................29
Grounding Techniques .......................................................................30
Static Protection .................................................................................30
Appendix B: AT Commands....................................................................33
Appendix C: S Registers..........................................................................39
Appendix D: AT Responses.....................................................................43
Appendix E: CSU/DSU Tests...................................................................45
Index ......................................................................................................49