Universal Remote Control MSC-400 Programming Manual page 85

terminal on the device to be controlled. Some devices will use other types of connectors such as RJ45 and
mini jacks. Custom cables can be made using the pin-out for the MSC-400 jacks as shown in Typical System.
Please refer to the device owner's manual for the pin-out of RS232 Terminals that are not DB9 connectors.
1 Connect the 3.5 mono 4 circuit mini plug end of a URC RS232M/F to the appropriate IR or RS232
programmable output jack.
TIP - This step is critical in that once cond and programmed, the MSC-400 will only
send a specific device's RS232 commands to that device via the assigned RS232 Port.
If an RS232 cable is not connected to the proper RS232 port, the MSC-400 will be
sending commands to the wrong device. Keep written notes of which device's RS232
cables are connected to which RS232 ports and label each RS232 cable at the plug
end for type, brand and model as well as the RS232 Port number.
2 Connect the DB9 Connector to the device RS232 terminal. Tighten the thumb screws to secure the
connection.
IR In
1 Using appropriate 3-conductor 24-14AWG wire, connect the +12, signal and ground from an IR
repeater system to one of the included three-pin plug-in connectors for IR control of Connected
Devices. The MSC-400 will output IR signals input to this terminal to all IR ports. (No routing for
selective control.)
NOTE - If the IR repeater system has it's own power supply, do not make the 12V connection.
2 Confirm polarity from the IR system prior to making connections. Be sure there are no loose strands
that can cause shorts.
RF In (RFX-250 RF Sensor)
1 Using the included 10' 4-circuit mini-mini cable, connect the RF out on the RFX-250 RF sensor to
the RF In on the MSC-400 Rear Panel as shown in Typical System. The RFX-250 can also be con-
nected via three conductor wire, using one of the included 3-pin plug-in connectors.
2 If connecting multiple RFX-250's, the 3.5 mono jack and plug-in terminal are parallel, so both can
be used. When connecting multiple RF sensors with the plug-in connector, check polarity from each
RFX-250 prior to making connections. Be sure there are no loose wire strands that can cause shorts.
3 Once the system has been powered up, the RFX-250 Power LED should illuminate red.
Reference: Features and Parts Type in Section Title
RS232 3.5 Mono Mini Plug Pin-Out
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