DL3500
DL3500 User Manual (PDF - 219KB)
DL3500 Bridging Application Note (PDF - 20KB)
DL3500-DH+ Modbus (PDF - 211KB)
DL3500-DH+ Ascii (PDF - 247KB)

DL4500
DL4500 User Manual (ZIP - 2M)
DL4500-Hardware Quick Start 2005 (PDF- 918KB)
DL4500 Modbus TCP Hardware Setup (PDF - .99MB)
DL4500 Modbus TCP Quick Start (PDF - 832KB)
DL4500 RSLINX - Quickstart (PDF - 146KB)

Interface Cards
Interface Cards User Guide (PDF - 82KB)
Interface Cards Quick Start (PDF - 551KB)

Third Party Software
Kepware (PDF - 755KB)

CTC Wonderware Citect

Technical
US Robotic (PDF - 76KB)
DataLink Flash Burn (PDF - 126KB)