Audio 1 entrance CPU c/w 3A PSU & Timeclock: Lockable control cabinet with 701T 7 day time clock and 3 Amp 13.8Vdc PSU. The time clock includes 6 programmable on/off times, BST/GMT automatic correction, trade button input, dry contact relay output and back lit LCD display. Cabinet size 265mm x 360mm x 75mm All multiple entrance control cabinets will either be a CAB1 or CAB2 lockable powder coated steel cabinet (dependent on control equipment required). They are fitted with an unboxed 13.8Vdc, 5A switched mode power supply with battery back-up facility, BST/GMT time clock and a four entrance audio switching card. The cabinets can also be supplied with or without isolation. Cabinets with isolation will be fitted with Art.2204N isolation cards from 4 way, 8 way up to 12 way isolation. The 2291AB cabinet will come fitted with the Art.2206N bus exchange device for two level systems. Features Control equipment housed in either a CAB1 or CAB2 lockable cabinet Cabinets fitted with a 13.8Vdc, 5A PSU with battery back-up facility Cabinets include an Art.701T BST/GMT time clock Cabinets include 4 entrance audio switching card Isolation available: 4 way, 8 way and 12 way Block control cabinets fitted with a bus exchange device