S-402A 20X1 Stereo or 40x2 Mono Audio Switcher
S-402A Manual PDF File 86KB
The S-402A is a 40 input, 2 output audio routing system. The various front panel mode switches allow the S-402A to be used
as a 40x2 mono audio router, a 20x1 stereo audio switcher, or as a summing switcher (in either stereo or dual 20 x 1 mono).
Source and mode selections may be made from the front panel, or remotely using the RS-422/RS-232 serial port. An optional
remote control panel which duplicates the front panel controls (except the output level controls) is also available.
Audio presence and peak indicators are located on the front panel, and are also accessible from the serial port for remote
monitoring applications.
Front panel level controls permit gain adjustment for each output. The rear panel audio connections are made using screw-clamp
terminal blocks, ensuring secure connections.
S-402A Specifications
| Power Requirements | 115 VAC, 60 Hz or 230 VAC, 50 Hz |
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Audio Inputs
| Number of Inputs | 40 mono, 20 stereo |
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| Input Impedance | 30 kohms balanced |
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| Input Signal Level | +8 dBu nominal, +24 dBu maximum |
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| Input Connectors | Screw clamp terminal blocks |
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| Common Mode Rejection | -60 dB typical @ 60 Hz |
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Audio Outputs
| Number of Outputs | 1 per channel, 2 channels tota |
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| Output Impedance | 60 ohms balanced |
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| Output Level | +8 dBu nominal, +24 dBu maximum |
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| Output Gain Range | +/- 6 dB |
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| Output Connectors | Screw clamp terminal blocks |
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| DC Offset | Less than 20 mV |
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| Frequency Response | +0/-0.2 dB, 20 Hz to 20 kHz |
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| THD + Noise | Less than 0.08%, 20 Hz to 20 kHz, nominal output |
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| Hum and Noise | -82 dBm, 20 Hz to 30 kHz |
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| Crosstalk | -80 dB @ 20 kHz |
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Physical Dimensions (Inches)
| S-402A | 19 W x 1.75 H x 11 D, EIA rack mounting |
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S-402A Manual PDF File
