Arrakis Systems X-mixer-14-22 Operations Instructions download pdf (Page 35)

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For situations such as an external channel 'ON' tally lamp, the 1200 Series Console provides a transistor

driven logic output for four of the five input

channels on each input board. The circuit activates when the

channel is turned ‘ON’.

This transistor output driver should be used

to drive an external relay for interface to

other equipment, although it may drive a

LED directly through

a 1k ohm resistor.

WARNING -

Maximum current allowed is

50mA.

Improper use will destroy the

channel‘s drive transistor.

NOTE

Up to three Input

Boards may be in the

console, depending on

console size. The

connector pinouts are as

follows

1st BOARD: 3 2 5 4

2nd BOARD: 8 7 10 9

3rd BOARD: 13 12 15 14

GROUND

CHANNELS

SUSTAINED LOGIC CIRCUIT

GROUND

CHANNEL 'ON'

LOGIC/ TALLY

CH ON LOGIC

NOTE-

the logic output goes NEGATIVE when the

channel is ON.

LAMP

2N3904

REV.C

3 2 5 4

CHANNELS

GROUND

SUSTAINED LOGIC

CONNECTOR

Arrakis Systems, inc. --- 6604 Powell st., Loveland, CO 80538 --- 970-461-0730 --- www.arrakis-systems.com

INSTALLATION PROCEDURES

SUSTAINED LOGIC

3-8)

3.19

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Arrakis Systems X-mixer-14-22 Operations Instructions Page 35

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