Transmission Delay; Power Supply - HME Clear-Com ProGrid PG8-INTERCOM-FX User Manual

5.7

Transmission Delay

The ProGrid system delay, including the matrix, is a fixed 41.6 µs @ 48 kHz for all channels. The additional transport
delay per ProGrid unit on the network (<200 ns) is insignificant in comparison. Overall system delay is dependent on
the converters used and the length of network cables in the system. Assuming 'normal' cable lengths of <700 m per
link, the additional delay is considered marginal.
The transmission delay is constant between any points in the network.
5.8

Power Supply

The device is optionally equipped with two power supplies and inputs. If the primary power supply were to fail, due to
disruption of the power source or in the case of a power supply malfunction, the device will automatically switch over
to the redundant power supply. In order to make the power supply to the device redundant, both power inputs must
be connected to the mains supply, if possible to different phases, circuits, or by having one of the power supplies
connected to an uninterrupted power supply (UPS).
The power supplies operate with mains voltage of 100 ... 240 V and frequency of 50 ... 60 Hz. The device can be
used throughout the world without any modifications or transformers.
14
PG8-INTERCOM-FX and PG4-INTERCOM-FX User Guide
Important:
The switched-mode power supplies operate at very high voltages.
Coming into contact with the power supplies can lead to considerable electric shock,
which may result in death.
To prevent electric shock, do not remove any covers of the device.