Trilogy Touch Technology Trilogy Commander Digital Intercom 9 - Manual (Page 72)

Commander Installation Guide
Page 72 of 81 Trilogy Communications Limited Issue 9
8.5.4.2 500-40-0x Series Control Panel Rear View
8.5.4.3 Typical expansion panel configuration
Since the 500-3x-3x series panels (“Standard” 8 / 16 / 24 key) only have a single expansion
connection, they must form either the first or last panel in a chain. Expansion panels from the
500-40 range have both Expansion In and Expansion Out connectors, allowing them to be
connected in a chain. The PathFinder configuration software includes full expansion panel
support (from version 4.12 onwards). This controls the sequence in which the panels should
be added to the configuration editor and the electrical interconnection sequence. Obviously,
the panels may be assembled into the control desk in any preferred positions, cable lengths
permitting. Two different cable types are required, Type A and Type B which are detailed in
section 8.5.4.4.
The following rules need to be observed when connecting expansion panels onto a system:
¾ The standard series panels have only a single expansion port, used as “EXPANSION IN”
or “EXPANSION OUT”. Therefore, these panels must be connected on the beginning or
end of a chain only.
¾ Standard control panels (500-3x series) used in expansion mode need the internal DIP
switch 1 set to “ON”. If the panels are supplied as part of a pre-configured system, this
will be carried out by Trilogy and the panels marked accordingly. See Section 10.1.
¾ When a standard panel appears at the end of a chain, it must be connected using cable
type B (see section 8.5.4.3).
¾ The audio only operates on the first panel of the chain: if required, the microphone may
be removed from the second “standard” panel. Trilogy can supply a blank plug for the
microphone fixing.
¾ The maximum suggested cable length for interlinking cables is 10 metres.
¾ A maximum of 5 panels may be configured within PathFinder. The other controlling limits
are either 63 keys or 63 rotary encoders – whichever is reached first.
A number of different arrangements are shown below; others are possible.