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2
N E T-LO G H AR DWA R E
2 Net-Log Hardware
Physical Description
N E T- LOG H A RDWA RE
The logger is housed in a 1U high 19” rack mount box. The front panel is chrome plated
and there are chrome plated panel inserts for the fan inlet/outlet with domed labels for the
“Sonifex” and “Net-Log”.
Power
The unit is powered via an IEC filtered input for 95 – 265V supply at 47–63Hz, peak 60W, 30W
average. There is an external fuse for the mains input that is rated at 2A. We recommend that
the Net-Log is operated from an uninterruptable power supply. It should be noted that the
record header is written regularly during the record process so if the power fails the data
lost will be limited. At a bit rate of 192kbps this loss will be a maximum of 1 minute. Lower
data rates will give proportionately greater time loss.
Level Indicators
There are four tri-colour LED’s positioned on the front panel indicating input levels for each
individual channel:
Led State
Meaning
Off
Input level < -18dBu
Yellow
–18dBu < Input level < 0dBu
Green
0dBu < Input level < 12dBu
Red
Input level >12dBu
Level
Indicators
Archive
Alarm
Power
LED
Disc Drive
Alarm
Record
Control
Reset
Switch
Fig 2-1: The Front Panel.
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Net-Log User Handbook