Section 3 - Wiring
3.1 SC 32 and SC 64 Wiring
Audio Cable Wiring
All audio and control connections to the SC 64/32 are via 12 terminal female Phoenix
Combicon-style 3.5mm connectors, which are supplied for making these connections.
Audio Input and Output wiring convention
Balanced wiring - The convention for balanced wiring (2-wire plus shield) is:
Pin 3: Cold ‘–’
Pin 2: Hot ‘+’
Pin 1: Shield
Unbalanced wiring - The convention for unbalanced wiring to the inputs (1-wire plus shield)
is:
Pin 1: Shield
Pin 2: Hot ‘+’
Pin 3: Link to Pin 1
Control Inputs
Used to connect switches. There are two common (ground) connections, labeled “C” to the
left of the eight CONTROL INPUTS, and two software assignable reference voltage outputs,
labeled “R” to the right of the eight CONTROL INPUTS.
Relay Contacts
Supports control of a voltage source and load that is AC, or supports control of a voltage
source and load that is higher-current DC than is supported by the logic outputs. A normally
open circuit or a normally closed circuit is available.
Section 3
Wiring
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8
SC 32 / SC 64
SC 32 / SC 64
