Abstract: Applica TIon note 314 provides the design requirements for implemen TIng a per-channel loopback applica TIon using the Dallas Semiconductor/Maxim DS2141A, DS2142, DS2151, or DS2153.

With Elas TIc Store Disabled DS2141A/DS2143/DS2151/DS2153



With Elastic Store Disabled DS2141A/DS2143/DS2151/DS2153

Notes:

1. The TCHBLK signal is used to control a 2:1 multiplexer which will select which channels (if any) are to be lopped back to the network.
2. In DS2151 and DS2153 applications, the line interface is included onboard the devices.