5
Selectors
Analog selector controls are wired with pin 3 being the reference voltage (+10V), pin 2 being the wiper, and
pin 7 or 8 being the ground. A resistance ladder is added with the value of the resistors being recommended at
2.2kOhms.
1
2
3
4
5
6
7
8
RJ45 JACK
TIA/EIA 568B STANDARD
Ref
er
enc
e = 10V
W
iper
Gr
ound
2.2kR
Logic Onputs
Each logic output can control an LED or low power relay. Pin 6 of the RJ45 jack has a 50k Ohm ‘pull-up’ to
12V DC when not asserted. When asserted, it will sink 25mA at 0.6V DC. Maximum asserted external voltage
is 30V DC. For logic outputs that will drive LED’s directly (without any other source), see the RMPC line of
I/O expander modules. See also the ‘Relay’ module of the MAP series module list for power relay options.
I/O Modules
All MAP modules are color coded for ease of identification. Modules are labeled with these colors in 2 places
- the back panel, and the front panel display. On the back panel the modules have color-coded labels. On the
front panel display, audio channel numbers are displayed in the different colors. The list of modules and their
colors is listed below.
Module
Color
Quad-In
Yellow
Quad-Out
Green
Dual-I/O
Yellow&Green
Quad-AEC
Orange
Quad-FIR
Blue
Quad-AES-In
Black
Quad-AES-Out White
Quad-Tel
Red
Relay
Gray
Tri-Control
Purple
