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S1 User Handbook

USER GUIDE

Cleanfeed Outputs

The Telco cleanfeed is a mono balanced output

used to return a mono version of the program

bus back to telephone hybrid. All channels

except channel 5, input 2 (Telco) are routed to

this bus.

The stereo cleanfeed output works in a similar

way to the to the telco cleanfeed. Essentially, it is

the same as the PGM output without channel 6,

input2 routed. This can then be used as a return

for an ISDN codec.

Digital Outputs

The S1 has two digital outputs that work at the

same time. The rst is AES/EBU which is on a

balanced XLR connector. The second is S/PDIF

which is found on an unbalanced RCA connector.

These both carry the PGM output. The digital

output can be synced to either the on-board

master clock or either of the designated sync

inputs. There are three distinct synchronisation

modes:

Master Mode

The digital outputs are locked to the on-board master clock and is therefore constantly

operating at the chosen sample rate. No sync signal is used or required. The internal clock

can be set to 32, 44.1, 48, 88.2 and 96kHz.

Slave Mode

The digital outputs are locked to one of the three external sync inputs; AES/EBU, S/PDIF or

word clock. If the lock is lost, the digital PGM output is disabled until another lock is secured.

Auto Mode

The digital outputs are locked to one of the three external sync inputs but if the sync is lost,

the master clock replicates and resumes at the sample rate of the lost signal.

When the digital output of the mixer is set to either slave or auto modes, the desk will

automatically synchronise to the rst available input source. The three sync inputs, AES/

EBU, S/PDIF and word clock are all auto sensing.

To learn more about the conguration of synchronisation options, read section 4 – SCi

(page 35).

Lock Indicator

The illuminated lock indicator shows that the

digital output is locked . If synchronisation is lost

then the indicator will ash.

Fig 2-30: Cleanfeed

Outputs

Fig 2-31: Digital Outputs

Fig 2-32: Lock

Indicator

1 2 ... 26 27 28 29 30 31 32 33 34 35 36 ... 79 80

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