5
Technical Reference
Electrical Interface
The MLA-XLR uses the EIA RS-422A electrical interface over an
XLR connector.
1
Shield
2
MIDI Data-
3
MIDI Data+
Table 5 - XLR Pinout
The XLR input has an internal 100
Ω
termination. This is done to
reduce errors caused by reflections in the cable.
Troubleshooting
If for some reason the MLA-XLR does not give you the expected
results, take a moment to do some investigating. The most
important concept is that you have your MLA-XLR connected
properly as outlined in
Setting up the MLA-XLR
. Take a moment to
double check this setup.
The MLA-XLR has three LEDs to aid you in troubleshooting your
setup. There is one green LED that indicates the presence of
power. Two red LEDs indicate the presence of MIDI activity.
Care and Service
If properly cared for, your MLA-XLR should provide years of
troublefree performance. While the MLA-XLR is built in a rugged
steel enclosure, please avoid dropping the MLA-XLR.
Clean with a soft, damp cloth. Do not allow liquids to get inside
the unit.
There are no user-serviceable parts in the MLA-XLR. Please refer
to the JLCooper Electronics Limited Factory Warranty for detailed
warranty and service information.
