Guntermann & Drunck, Switch, models:

DL-MUX2-MC2	Installation And Operating Manual
DP-CON	Installation And Operating Manual
DVIMUX4-PS/2	Installation And Operation Manual
DVIMUX4-USB	Installation And Operations
DVIMUX8-PS/2	Installation & Operation Manual
TradeSwitch4-PS/2	Installation And Operation Manual
TradeSwitch8-PS/2	Installation And Operation Manual
UCON-IP-NEO	Installation Manual
UCON/s	Getting Started
UserCenter 2	Operating Instructions Manual
miniMUX8	Installation And Operation Manual