Auerswald COMmander Basic2 Electronics¶

Mainboard¶

8 S0 Module¶

As can be seen clearly on the picutre, it uses the CologneChip HFC-8S 8-port S/T interface IC. There's a lattice glue logic chip for interfacing with the backplane bus, and the analog frontend + magnetics sections for 8 ports. Four ports have jumper blocks to change the NT/TE cross-over, while the other 4 ports are static.

4 S0 Module¶

This isba basically just a partially populated 8S0 module, using a HFC-4S chip instead of the HFC-8S.

8 a/b Module¶

S2M Module¶

The S2M (PRI) module is centered around an Infineon PEF2256E FALC56 chip. This is one of the most common E1 framers on the market.

The glue logic for interfacing with the backplane/bus is implemented in a Xilinx CPLD.