Audio Input And Link Connectors - D&B D80 Manual

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4.3.2. Audio INPUT and LINK connectors

All signal input and link output connectors 1-4 are located on the
rear panel.
These can be configured as four analog inputs, two analog and
two AES channels or four AES channels (Please refer to
Þ Chapter 9.2. "Input" on page 34).
Each input channel can be routed to any of the output channels A
to D (Please refer to Þ Chapter 10.6. "Input routing"
on page 55).
Analog INPUT and LINK (A1 - A4)
A 3-pin female XLR input connector is provided for each channel.
Wired in parallel is a 3-pin male XLR input link connector used to
feed the input signal on to the next device in the signal chain.
Specifications
Pin assignment
Input impedance
Common mode rejection (CMRR@100 Hz/10 kHz)
Maximum input level (balanced/unbalanced)
LINK analog (A1 - A4)
Digital INPUT and LINK (D1/2 - D3/4)
The input connectors 2 (D1/2) and 4 (D3/4) can be configured
as AES/EBU (AES 3) inputs individually.
Note: When configuring the digital inputs, the remaining
input and link output connectors 1 (A1) and/or 3 (A3) are
disabled.
The corresponding digital LINK output (2/4) can be used to feed a
refreshed input signal to the next device in the signal chain. The
signal shape (the rising and falling edges of the signal) and level
are refreshed with an analog buffer amplifier.
A power fail relay is incorporated to prevent interruption of the
signal chain should there be a power failure. In this situation, the
digital input signal bypasses the analog buffer amplifier and is
routed directly to the LINK output.
Specifications
Pin assignment 1 = GND, 2 = AES Signal, 3 = AES Signal
Input impedance
Sampling
Synchronization Word-Sync: PLL-locked to source (slave mode)
LINK digital (Output)
1 = GND, 2 = pos., 3 = neg.
38 kOhms, electronically balanced
> 70/50 dB
+25/17 dBu
+27 dBu @ 0 dBFS
3 pin XLR male
parallel to input
110 ohms, transformer balanced
48 / 96 kHz / 2 Ch/n
3-pin XLR male
electronically balanced
analog signal buffering (refresh)
Power Fail Relay (Bypass)
d&b D80 Manual 1.8 en