Key facts
- Brand
- Maxim
- Model
- DS21349
- Category
- Other Electronics
- Documents
- 2
- Languages
- EN
- Last added
- 2012-07-03
Start here

Maxim DS2149DK/DS21349DK T1/J1 Line Interface Unit Design Kit Handbook
The document details the DS2149DK/DS21349DK Design Kit, a fully integrated board containing circuitry to evaluate the DS2149 and DS21349 devices in both hardware and software modes. The kit includes necessary components such as PLCC sockets, Bantam and RJ48 connectors, transformers, and an on-board 8051 microprocessor for software mode access.
The guide provides instructions on board layout, component lists, line-side connections, and system connector usage. It also explains how to install and run the DemoView software for register read/write operations and offers basic configuration steps for setting up T1 hardware and software modes with external remote loopback.
Maxim DS21349 specifications
| Package Type | PLCC 28-Pin Socket |
|---|---|
| Microprocessor | On-Board 8051 Microprocessor |
| Power Voltage Support | Controllable 5V and 3.3V |
Source: Maxim DS2149DK/DS21349DK T1/J1 Line Interface Unit Design Kit Handbook
All Maxim DS21349 documents by type
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What devices does this design kit support?
The kit is a fully integrated design kit for the DS2149 and the DS21349 T1/J1 line interface units.
From: Maxim DS2149DK/DS21349DK T1/J1 Line Interface Unit Design Kit Handbook
How can I access the device in software mode?
The board contains an on-board 8051 microprocessor with factory-installed firmware to translate memory access requests into register access.
From: Maxim DS2149DK/DS21349DK T1/J1 Line Interface Unit Design Kit Handbook
What are the available operating modes?
The device supports both hardware mode and serial port mode for control.
From: Maxim DS21349 3.3V T1/J1 Line Interface Unit Datasheet
What is the maximum cable length supported by the DS21349?
The device can operate on 0.63mm (22 AWG) cables up to 6k feet in length.
From: Maxim DS21349 3.3V T1/J1 Line Interface Unit Datasheet
