360 Systems Instant Replay 2 - Manual (Page 43)

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AUDIO CONNECTIONS
Audio Inputs
The A NALOG I NPUTS are a pair of female XLR-3 connectors marked L EFT and R IGHT . The inputs are
electronically balanced, with an impedance of 40k ohms. With the I NPUT L EVEL controls up full, a
6.75dBu tone will produce a full scale output, approximately 15dBu with the O UTPUT A TTENUATOR
in the –10 position and 25 dBu in the 0 position. Refer to Table 3 for input and output connections.
Input cables should be wired as follows:
XLR Connector Pin Balanced Connection Unbalanced Connection
PIN 1 COMMON GROUND
PIN 2 + INPUT SIGNAL
PIN 3 - INPUT No Connect
T ABLE 3 - I NPUT AND O UTPUT C ONNECTIONS
Audio Outputs
The main A NALOG O UTPUTS are a pair of male XLR-3 connectors. The output is electronically
balanced, and is capable of driving loads of 600 ohms or greater. Output cables should be wired the
same as shown above for the inputs.
Headphone Output
The H EADPHONE O UTPUT always carries the same signal as the Main outputs, but its level is
controlled by the H EADPHONES L EVEL control on the front panel.
When the P REVIEW button is activated in Stop mode, the H EADPHONE O UTPUT is active and the Main
Outputs are turned off during subsequent playback. It may be helpful to use the H EADPHONE O UTPUT
for control room monitoring, while the Main Outputs provide the main feed to a mixer or transmitter.
DIGITAL AUDIO CONNECTIONS
AES/EBU Input
An XLR-3 female connector is provided for digital input in the AES/EBU format. There is a
selectable Sample Rate Converter built in to Instant Replay. When SAMPLE RATE CONVERTER
is ENABLED, the input will accept any sample rate from 24k samples/second to 50k
samples/second. Use only special AES cable having an impedance of 110 ohms. Limit the cable run
to 100 feet. Do not use microphone cables for runs of over 6 feet.
IEC 958 Type II Input
An RCA "phono" connector provides a digital input from consumer or semi-pro equipment. Most
equipment with connectors marked "S/P DIF" can be connected to this input.
As described in the previous section, when SAMPLE RATE CONVERTER is ENABLED the input
will accept any sample rate from 24k samples/second to 50k samples/second. Use only low-