Download Studer D21m IO System Components
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D21m System 2.2 The Frame and its Cards Front View: Rear View: I/O Example: 1 Dual-Slot Card 4 Single-Slot Cards I/O Example: 3 Dual Card Slots 1...2 HD Link Cards (Link to DSP Core) RS422 Serial I/O Card Main and Redundant Power Supply The 3 U frame provides 12 slots for I/O card insertion. Each card may provide a different number of I/O channels, depending on its capabilities (e.g. a microphone card provides four channels of microphone inputs, while an ADAT card provides 16 channels of inputs and outputs simultaneously). Some cards are mechanically occupying two slots, and therefore a maximum of 6 doublewidth cards may be inserted into a frame. An overview of the different cards currently available is given in chapter 6.1. The frame hosts one or two “High Density Link” cards (short: HD Link), providing the main audio connection to the DSP core. From the HD card(s) the signals are redirected to the different types of I/O cards in the frame. Therefore at least one HD card must be inserted in the frame. The frame may be equipped with redundant power supplies, the status of which can be displayed in the Vista console’s system surveyor page. Please note that the rack mounting brackets may be installed either on the front (as shown on the opposite page) or on the rear of the frame. Date printed: 11.07.07 Introduction 2-3