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LXD381 — Evaluation Board for Octal E1 Applications Developer Manual iii
Contents
1.0 General Description ..................................................................................................5
1.1 Features ................................................................................................................5
2.0 Evaluation Board Set-Up.........................................................................................7
2.1 LXD381 Packing List.............................................................................................7
2.2 Equipment Requirements......................................................................................7
2.3 Power Connections ...............................................................................................7
2.4 Loopback Mode Selection.....................................................................................7
2.5 Receive Polarity Selection.....................................................................................8
2.6 Output Enable Selection........................................................................................8
2.7 Unused Switches...................................................................................................8
2.8 Back-End Interface Connection.............................................................................8
2.9 Line Interface Connection .....................................................................................9
2.10 Line Interface Circuit .............................................................................................9
2.11 Board Protection....................................................................................................9
3.0 Evaluation Board Schematics.............................................................................10
Figures
1 LXD381 Evaluation Board.....................................................................................6
2 S2 Factory Switch Settings ...................................................................................8
3 Typical Back-End Connector.................................................................................9
4 Evaluation Board Schematic — Data/Control .....................................................10
5 Evaluation Board Schematic — Digital I/O..........................................................11
6 Evaluation Board Schematic — Analog 1 ...........................................................12
7 Evaluation Board Schematic — Analog 2 ...........................................................13
Tables
1 LOOP0 - 7 Switch Settings....................................................................................7