When designing a board with a Maxim telecommunication device, is there any restriction on PCB trace length from the device to the transformer?
A4. Application note 3410, “Guidelines for Laying Out T3 and E3 Network Interfaces,” explains how to layout the network interfaces for Maxim T1/E1 and T3/E3 products. This application note provides layout considerations, trace-widths calculations, and different scenarios for ease of design. It also describes how to maintain the proper impedances when laying out a circuit board with a T1/E1 or T3/E3 networking interface.