16
Connections
All 2192 connectors are on the rear panel of the unit. The only adjustable controls on the rear
panel are the analog level trims (page 19). Each connector and its function are detailed below.
AC Power Input
AC power is input to the 2192 via a standard, detachable IEC power cable such as the one
supplied with the unit. The auto-sensing, multi-stage filtered, universal power supply accepts input
power from 100VAC to 240VAC, at 50Hz to 60Hz. The third grounding pin is connected to the
chassis internally.
AES/EBU Digital I/O
The AES/EBU digital interfaces of the 2192 use transformer coupled, balanced differential inputs
and outputs for maximum digital signal integrity and jitter immunity. Only the highest-grade
components are used throughout.
Each balanced AES/EBU connector can individually isolate pin 1 from ground if desired via an
internal jumper block. See Ground Isolation Jumpers on page 20.
Both channels of a stereo pair at all supported sample rates can be transferred on a single cable
between compatible hardware units. For compatibility with legacy equipment, dual wire mode is
supported at sample rates of 176.4 and 192kHz.
AES/EBU “A” is used to transfer up to 192kHz stereo audio on single cables, or one channel of
the stereo pair when in dual wire mode. AES/EBU input “B” is used only in dual wire mode.
AES/EBU output “B” is used for one channel in dual wire mode, and replicates AES/EBU output
“A” in single wire mode.
AES/EBU Dual Wire Mode
The 2192 can accommodate sample rates of 176.4kHz and 192kHz in AES/EBU dual wire
mode, transferring one channel of the stereo pair on each of two separate AES/EBU digital
I/O’s. Dual wire mode is controlled by the Single/Dual front panel selector switch (page 25).
When this switch is depressed, the 2192 is in dual wire mode.
AES/EBU Digital Input A
This female XLR jack receives incoming 24-bit stereo AES/EBU digital audio signals up to
192kHz from compatible hardware. When in dual wire mode, the left channel of audio is
received here. Pin 2 is hot.
This input can be used for either digital audio with clock or for digital clock only. When the
Clock knob (page 21) is set to AES/SPDIF and the Digital Outputs knob (page 25) is NOT set to
AES/SPDIF, the audio portion of the signal is ignored.
AES/EBU Digital Output A
This male XLR plug transmits 24-bit stereo AES/EBU digital audio signals up to 192kHz to
compatible hardware. When in dual wire mode, the left channel of audio is transmitted here. Pin
2 is hot.
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