Spectrum Controls 1756sc-CTR8 - Manual (Page 21)

Important: If noise persists, try grounding the opposite end of the cable,
instead (Ground one end only.)
Wiring Single-ended
Inputs The following figure shows the general terminal block layout. A single-ended input uses a pair of
terminals, Hi(x) and Com. Gate lines are wired with their respective Gate(x) and Com terminals.
Hi 4
Com
Gate 4
Com
Hi 5
Com
Gate 5
Com
Hi 6
Com
Gate 6
Com
Hi 7
Com
Gate 7
Com
N/C
N/C
Hi 0
Com
Gate 0
Com
Hi 1
Com
Gate 1
Com
Hi 2
Com
Gate 2
Com
Hi 3
Com
Gate 3
Com
N/C
N/C
Single-ended Wiring
Unidirectional Input
Chassis
Ground