The upper center soft key controls the digital input termination
impedance. The choices are ‘HiZ’ and ‘LoZ’. The HiZ choice will
provide a termination impedance ≥2.5 kΩ on the XLR connector and
≥3kΩ on the BNC connector. The LoZ choice will provide a
termination impedance of 110 Ω on the XLR and 75 Ω on the BNC.
In most cases, LoZ is the appropriate choice. The low impedances
provided are listed in the interface specifications, so almost all devices
will be expecting these terminations. The most common case for
using the HiZ option is when the ATS-1 Dual Domain digital input is
connected in parallel with another device, and the other device
provides proper termination.
3 Operation
External Connections Operational Overview
3-44 ATS-1 Dual Domain User's Manual
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