6.1
Connecting the 905 via RS-232
You can connect to the 905 via an RS-232 connection using, for example, a
PC. Note that a null-modem adapter/connection is not required.
To connect to the 905 via RS-232:
• Connect the RS-232 9-pin D-sub rear panel port on the 905 unit via
a 9-wire straight cable (only pin 2 to pin 2, pin 3 to pin 3, and pin 5
to pin 5 need to be connected) to the RS-232 9-pin D-sub port on
your PC
7
Operating the 905 Power Amplifier
You can operate your 905 using:
• The front panel buttons (see section 7.1)
• The Audio Control program (see section 7.2)
• RS-232 serial commands transmitted by a touch screen system, PC,
or other serial controller (see section 7.3)
7.1
Using the Front Panel Buttons
The front panel buttons let you:
• Select an input, by pressing the INPUT 1 or INPUT 2 buttons
• Adjust the volume (see section 7.1.1)
• Mute the sound (see section 7.1.2)
• Mix the input signals (see section 7.1.3)
7.1.1 Adjusting the Volume
To adjust the volume of the output signal:
1. Press the up volume arrow (↑) to increase the volume.
2. Press the down volume arrow (↓) to decrease the volume.
7.1.2 Muting the Output
To temporarily turn off the output:
• Press the MUTE button. The button illuminates and the sound turns
off
To turn on the output:
• Press the MUTE button. The illumination turns off and the sound
turns on at the previous volume level
8
Operating the 905 Power Amplifier
KRAMER: SIMPLE CREATIVE TECHNOLOGY