Operating Notes - AKG AS 16x12 Quick Start Manual

Fig. 5: Using a 10k linear pot (1) for
analog gain control.
2 = CCW -> ground.
3 = Center pin -> PROGRAMMABLE
INPUT pin (4).
5 = CW -> +5 V.
The 19 Programmable Output pins of the AS 16x12 can indicate the current state of a Programmable Input.
Each Programmable Output is the electrical equivalent of a contact closure to ground. When a Programmable Output is
"active", it conducts current to ground. The maximum acceptable voltage for each Programmable Output is 40 V and
they will safely conduct up to 100 mA DC continuous.
You may run LEDs from the +5 VDC pin on the Programmable Input connector as long as the total LED current for all
LEDs on does not exceed 100 mA.
Similarly, you may also run 5-V relay coils from the +5 VDC pin on the Programmable Input connector, as long as the
total coil current does not exceed 100 mA.
Note that fig. 10 shows an external DC source powering the relay coil. This will be necessary if coil voltages above 5 V
are needed.
Figs. 8 to 10 show some common connections to Programmable Output pins:
Fig. 8: LED is ON when the
Programmable Output is active.
1 = +5 VDC from PROGRAMMABLE
INPUT pin 14, 17, 20, or 23
2 = PROGRAMMABLE LOGIC
OUTPUT pin
3 = 380 Ω
1. Connect the cable on the supplied AC adapter to the PWR IN jack on the AS 16x12 rear panel.
2. Connect the AC adapter to a convenient power outlet.
1. Insert the CD-ROM into your drive. The installation program will start automatically.
2. Follow the on-screen instructions.
3. Enter your name and company name when asked and we you to accept the default directory.
4. If you are not familiar with the LecNet software we recommend you to choose "Typical" installation.
5. Click on "Next" and accept the given setting by double-clicking on "Next" again.
6. To complete the installation, click on "Finish" when asked for.
7. You can now start the software anytime by clicking on "Start/Program/LecNet for AKG".
Fig. 6: Contact closure (1).
2 = ground,
3 = connection to PROGRAMMABLE
INPUT pin.
Fig. 9: LED is OFF when the
Programmable Output is active.
1 = +5 VDC from PROGRAMMABLE
INPUT pin 14, 17, 20, or 23
2 = PROGRAMMABLE LOGIC
OUTPUT pin
3 = 380 Ω
4 = Gnd (from PROGRAMMABLE
LOGIC OUTPUT pin 15, 17, 19,
21, 23, or 25)
3 Installation and Interfacing
Fig. 7: DC voltage source (1), con-
tinuously adjustable from 0 V to +5 V.
2 = ground,
3 = connection to PROGRAMMABLE
INPUT pin.
Fig. 10: Relay is ON when the
Programmable Output is active. Max.
coil current is 100 mA.
1 = Relay coil
2 = 1N001 diode or equivalent
3 = External DC voltage source
(<40 VDC)
4 = PROGRAMMABLE LOGIC
OUTPUT pin
5 = Gnd (from PROGRAMMABLE
LOGIC OUTPUT pin 15, 17, 19,
21, 23, or 25)

4 Operating Notes

Figs. 5 through 7.
3.7 Wiring
Programmable Output
Pins
Figs. 8 through 10.
3.8 Connecting to
Power
4.1 Installing the
Software
9