American Audio PSX - REV 1-2 Betriebsanweisung PDF herunterladen (Seite 18)

PSX User Guide V1.0

PSX USER GUIDE

U-NET

When a networked system with multiple PSXs requires long cable runs – possibly including other

Martin Audio network devices - the dedicated U-Net Bus must be used as opposed to USB,

which is only suitable for short cable distances. Connections are made using Cat 5 cables ﬁtted

with 8-way push-pull latching connectors compatible with ODU Series K. Robust Cat 5 cable

such as Neutrik® Etherﬂex or Belden 1305A should be used; this will ensure reliable network

connections of up to 125 metres between network ports.

U-Net uses a redundant ring fault-tolerant protocol, so connections are “daisy-chained” between

all units on the network, going from Port 1 on the ﬁrst unit to Port 2 on the next, and so on. The

last network link is back to Port 2 on the ﬁrst unit, thus completing the loop. The U-Net network

will operate perfectly well without a closed loop but it is strongly recommended to use this

option so that the network will continue to work in the event of a break in cable or disconnected

connector.

Ready made tour-grade network cables are available as accessories from Martin Audio in a

variety of lengths, suitable for inter-cabinet patching to FOH-to-stage runs

SATELLITE SPEAKER OUTPUT

A female Neutrik® NL4 socket is ﬁtted, which carries the output of the power ampliﬁer‘s

second channel. As the PSX will always be used in conjunction with a full-range speaker system

(“a satellite”), it may be convenient, in the case of passive speakers, to use this to drive the

satellite. Suitable Martin Audio cabinets are the DD6, XD12 or XD15.

The ampliﬁer’s satellite output has a peak power of 1000 W into 8 ohms, so consideration must

be given to the rating of any speaker system connected.

Wire the mating NL4 connector as shown below:

TERMINAL CONNECTION

1+ Amp out ‘+’

1- Amp out ‘-‘

2+ n/c

2- n/c

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American Audio PSX - REV 1-2 Betriebsanweisung Seite 18