Introduction - Ramiaudio CSS201 Manuel Utilisateur

CSS201 is design for continuous monitoring of stereo digital audio signals. Embedded to a broadcast installation,
should the main signal disappear. it allows automatic switch to a backup digital signal, and automatic return to the
main signal when the problem is cleared.
As well as the audio switch, CSS201 switches a RS232 main/backup to insure continuity of data such as RDS.
Should power supply disappear, the bypass switches the digital input to the digital output, according to the
main/backup config in use before the supply loss. This config will be recall on supply return.
The monitor section, allows input/output check using an headphones and bargraph.
A green (normal)/red (backup) indicator on the front panel shows the equipment state, an the user can manually
switch the unit to the desired output signal.
Digital AES/EBU input /output on transformer.
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Digital input sample rate up to 96KHz, no transfer delay.
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Inputs/outputs 48KHz sample rate. An internal sample rate converter (SRC) allows to synchronize all digital inputs at
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48KHz.
Digital carrier monitoring for quality and audio, adjustable from -60dBFs to 0 dBFs. On audio loss CSS201 goes on
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alarm after adjustable delay
Four audio monitoring modes Left, right, Left + right, left and right.
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Full management of the unit uses the embedded web server. It keeps record of the last twenty events, of frames
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informations in real time, and the state of the switch. A front panel switch recall the factory IP address and a USB
port is used for firmware update.
Two relays report supply cuts, a third one for alarm and switch to backup.
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No alteration of associated data (index, text...)
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The remote monitoring of the equipment can be carried through the SNMP agent. Possibility of sending traps in V2c
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or V2c Inform format.
Synchronization of the internal clock by SNTP.
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CSS201 is a 19" - 1U unit.
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The CSS201-SD has the same functions as the CSS201 but also has a second backup source as an SD card.
This equipment is available under different versions:
CSS201 pack 01: CSS201 with one power supply only.
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CSS201 pack 02: CSS201 with an additional backup power supply (unavailable with SD option)
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CSS201 pack 03: CSS201 with one power supply and a card SD option (unavailable with two power supplies option).
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CSS205: analog input, analog backup input and analog output.
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CSS404: analog or digital input, analog or digital backup input and analog and digital output.
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Warning
CSS201 mains connector has three wires (2 poles + earth). Earth should imperatively be connected to mains earth.
Never use this equipement without proper grounding.
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Check quality of grounding.
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Never open the case without disconnecting mains
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Avoid high temperature exposure.
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Never expose the equipment to rain, snow or moisture.
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CSS201 complies with :
EN60065, EN55013, EN55020, EN60555-2, and EN60555-3, according to 73/23/EEC, 89/336/EEC and 93/68/EEC.
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CSS201