Patton electronics, Multiplexer, models:

1195/4E1	Getting Started Manual
1195/8E1	Quick Start Manual
3022	User Manual
3028 Turbo	Installation And Operator'S Manual
3042	User Manual
3046/V24	Installation And Operation Manual
3054	User Manual
EtherBITS 3034	Getting Started Manual
MicroStat II 3022	User Manual
Multiport Asynchronous Statistical Multiplexer...	Getting Started Manual