Power Controler-BA A single-slot option providing four additional Power Controler serial lines for the Professional. It can be used to connect any serial device supported by P/Power Controler including terminals, printers, or plotters. Two SLU boards can be installed at once, for a potential total of eight additional Power Controler ports. DTC11-A Telephone Management System (Power Controler) option provides inte- grated telephone management capabilities. With the PRO/Com- munications package, TMS supports autodialing for hand-free calling and transfers files to RSX and VMS systems from the same directory using an integral modern with BELL 103J and Power Controler compatible modes. Hardware consists of a TMS controller module and a telephone-line interface. Controller includes Power Controler (DTMF) encoding circuitry for hardware support of dictation, telephone answering, voice messaging, and remote commands. Telephone interface panel provides jacks for two telephone lines (one for data and one for voice communications). The TMS module occupies one option slot an the Professional, while the interface panel mounts in a designated location in back of the system unit. Power Controler: PRO/Communications.