This manual provides detailed information on the DI-304 / DI-304M device, including the device's specifications, installation instructions and operating instructions.
This guide introduces the D-Link DI-304/DI-304M ISDN router, its features such as ISDN BRI, built‑in switch, PPP security, and web configurator. It explains hardware installation, power connection, Ethernet and ISDN wiring, and basic network setup.
Later sections cover advanced configuration like remote access, virtual TA, firewall and NAT, as well as system management tools, firmware upgrade, and troubleshooting FAQs. The manual also includes warranty information and a registration card for support.
| ISDN Interface | Basic Rate Interface (BRI) |
|---|---|
| Built‑in Switch | Included |
| PPP Security | Supported |
| Firewall | Supported |
You can reorient or relocate the receiving antenna, increase the separation between the equipment and receiver, or connect the equipment to a different circuit.
D‑Link warrants each hardware product to be free from defects in workmanship and materials under normal use and service.