TL Audio 5051 - Manual (Page 10)

- Pin 2 = Signal Phase (“+” or “hot”).
- Pin 3 = Signal Non-Phase (“-” or “cold”).
3.8 Unbalanced Output.
An unbalanced line output is provided on a 0.25” mono jack socket.
- Tip = Signal Phase (“+” or “hot”).
- Screen = Ground.
3.9 Link
Connection.
The compressor section stereo link facility is via an unbalanced jack socket.
The mating connector should be wired as:
- Tip = Signal Phase (“+” or “hot”)
- Screen = Ground.
Note: The link signal is a DC control voltage. Do not connect the link socket to
an audio signal connector. It is only suitable for connection to the link socket
on another 5051 processor.
3.10 Nominal Operating Level.
A switch on the rear panel allows the line inputs to be matched to equipment
at a nominal operating level of +4dBu or -10dBu for unbalanced signals and
+18dBu or +4dBu for balanced signals. Most professional equipment requires
+4dBu (approximately 1.2V rms), but some small mixing consoles, portable
tape recorders or domestic audio equipment require -10dBu (approximately
225mV rms). Digital multitrack recorders have very high signal levels due to
the digital scale of 0dBfS usually matching +18dBu in the analogue domain. If
a machine of this type is connected to the 5051 line input and distortion is
experienced even at low input gains, then the +18dBu setting should be
selected.
3.11 Ventilation.
The 5051 may be free standing, or mounted in a standard 19” rack. Always
ensure that the cooling vents on the front and sides are clear of obstruction,
and do not subject the unit to an external source of heat (by mounting
immediately above a power amplifier, for example). If used free standing,
ensure that the equipment is protected against rain and spillage of liquid.