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Installation and Operation, cont'd
4.
In the Relay & Misc. Options portion of the control
program, select the appropriate options for each relay.
For example, set the relays that are tied to the Screen
Position Up ( ), Screen Position Down ( ), and Stop
buttons to Momentary, and select the duration for the
momentary contact. For the relay that is tied to the
Lighting On/Off button (RCM-SCLT only), select Latched.
5.
Set each relay to (NO) Open (normally open). Refer to the
MediaLink Controllers User's Manual and the MediaLink
Control Program for more information.
6.
Repeat steps 3, 4, and 5 for each RCM button.
The MLC contains three relays, so you may install a
maximum of one RCM-SC or one RCM-SCLT in a
system with an MLC.
Relay Control Modules • Installation and Operation
2-14
Testing/Troubleshooting
Before installing the control modules into the wall or furniture,
test the system to make sure that the connections are correct and
the modules are working correctly.
1.
Connect the cables between the MLC and the control
module(s), connect IR Emitters or an IR Broadcaster to the
MLC (if IRCM modules are used), and connect a host
computer to the MLC's Config port. If available, cable the
A/V source device(s) to the display device (projector), and
connect the projector and any relay-controllable items to
the MLC. Refer the MediaLink Controller User's Manual for
wiring diagrams.
2.
Connect the MLC to a 12VDC power source. Connect the
host computer, A/V source device(s), and projector to a
power source and turn them on.
3.
Start the MediaLink Control Program, and set up the
control modules and the MLC (for each button set up the
relays, select or type in RS-232 commands, or perform IR
learning).
4.
Press the buttons on the control module, watch the
module's LED (for IRCM and ACM modules), and observe
the item being controlled by the module (lights, screen,
projector mount, VCR, DVD, MLS switcher, etc.).
4A
If the LED does not light when a button is pressed,
check the captive screw connector wiring at both the
MLC and the control module. If the conductor
assignments are not the same at both ends, the
circuits may be damaged if power is applied to the
wrong pole, and the control module will not turn on.
Verify that the connectors are wired identically at
both ends of the cable.
If power is present at the MLC and at the control
4B
module, but the item being controlled does not
respond when a button is pressed:
• Make sure the control module's address DIP
switch settings are correct and that each module
has a unique address.
• For IRCM
control software to verify that an IR command
has been "learned" for that button.
• For IRCM
Emitter or IR Broadcaster has been connected to
the MLC's Display/Source Control IR connector.
Relay Control Modules • Installation and Operation
and CM
modules, check the MediaLink
and CM
modules, verify that an IR
2-15
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