12
Quick Start Guide
6408 216th Street SW
|
Mountlake Terrace, WA 98043 USA
T
+1.425.778.7728
F
+1.425.778.7727
|
www.SymetrixAudio.com
Open Collector Output
J8 on the Modular ARC provides an open collector output which
can be used to fire an external LED indicator (LED lit when OC
inactive) or drive an external relay. This logic output is addressable
by SymNet Designer’s RS-232/485 Controller Number system. Pin
1 is the active
output, Pin 2 is ground. Typical wirings are shown below.
Note
: this output cannot drive an LED directly; an external
power source is required. Refer to SymNet Designer’s Help for
programming information.
Logic Input
J5 on the Modular ARC provides an extra logic input which can
be wired to any simple closure by the installer. This logic input is
addressable by SymNet Designer’s RS-232/485 Controller Number
system. Pin 1 is the active input, Pin 2 is ground. A typical wiring
is shown below. Refer to SymNet Designer’s help for programming
information.
Internal External
External
Note:
You do not need to supply the components on
the "Internal" side. These components are internal to the
Modular ARC and only illustrated here for the purpose of
understanding the operation of the circuit.
2. External Relay Drive
to OC output
Relay
External Relay Supply
(24 VDC Max)
50 mA Max
coil current
1N4004
Ground from external relay supply
+V from
external supply
1. External LED drive using
external supply for
more current
to OC output
LED
Ground from external supply
Internal External
Closure
Note:
You do not need to supply the
components on the "Internal" side.
These components are internal to the
Modular ARC and only illustrated here
for the purpose of understanding the
operation of the circuit.
Hardware Setup
