Lectrosonics SPNDNT User Manual download pdf (Page 13)

Installation and Quick Start Guide

Rio Rancho, NM

ASPEN RS-232 Port

DCD

DTR

GND

DSR

RTS

CTS

GND

Host

Serial

Port

(PC)

ASPEN

RS-232

Port

Wiring Diagram

ASPEN Device to PC

DTE pin

functions

Female

connector

Male

connector

DCE pin

functions

Female

jack

Male jack

Crestron

RS-232 Port Wiring

GND

Crestron

RS-232

Port

ASPEN

RS-232

Port

Wiring Diagram

Female

connector

Male

connector

Female jack

Male jack

Programmable Inputs

Programmable inputs are provided to enable external

control over a variety of parameters. Each input can

respond to a contact closure, a DC voltage source,

or the variable voltage output from a potentiometer.

The following illustrates common connections to the

programmable input pins.

10K Linear Potentiometer

CCW

+5V

To Programmable Input Pin

Gnd

Contact Closure as Programmable Input

To Programmable Input Pin

Gnd

DC Voltage Source as Programmable Input

To Programmable Input Pin

0VDC (Off) to +5VDC (On)

Gnd

Potentiometer Connection for

Analog Control of Gain

Programmable

Inputs

Programmable

Outputs

Ground

+5VDC

Programmable Outputs

Programmable outputs are used for several purposes:

• indicatethecurrentstateofaprogrammableinput

• monitoractivityonaudioinputchannels

• monitoractivepresetchanges

Each programmable output is the electrical equivalent

of a contact closure to ground. When a programmable

output is “active” it conducts current to ground. When

the programmable output is “inactive,” no current ﬂows

to ground. The maximum usable voltage for the pro-

grammable outputs is 40 V and they will safely conduct

up to 100 mA DC continuous.

Both LEDs and 5V relay coils can be powered by the

+5 V DC pins on the programmable input connector, as

long as the maximum combined current for all LEDS

and relay coils does not exceed 100 mA.

380 Ohms

Pro gr amma b le Output Pi n

380 Ohms

Programmable Output Pin

1N4001

or equi v .

Exte r na l

DC V oltag e

Source

(<40VDC)

Rel a y Coi l

Coil current <100mA

Pro gr amma b le Output Pi n

Relay is on when the programmable output is active

+5VDC

GND

LED is ON when the programmable output is active

GND

LED is OFF when the programmable output is active

Note: The diagram above shows an external DC source

powering the relay coil. This is necessary whenever coil volt-

ages exceed 5 volts.

LED

380 TO

500 OHM

10K

LINEAR

POT

CCW

IN 1

IN 3

OFF

LOGIC OUTPUTS

GROUND

5VDC

LOGIC INPUTS

LOGIC

OUT 7

LOGIC IN 3

ANODE CATHODE

Cathode

Anode

1 2 ... 8 9 10 11 12 13 14 15 16 17 18 ... 27 28

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Lectrosonics SPNDNT User Manual Page 13

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