Flex M Engineered Receiver Instruction Manual
May 2019
Page 18 of 50
4.2 RF/CPU MODULE – GEN 2
This section is applicable to the following RF/CPU module part number(s) with the following format:
•
198-80104-yRFxxx
The “x” in the part number indicates the frequency and power level of the module. The “y” in the part
number indicates which RF module type is present (Part 15 = 0 or 1, Part 90 = 2, ETSI = 3).
Identifying a GEN2 CPU module:
•
The module will contain a label with one of the part numbers listed above
•
The LED overlay decal will be blue
The Flex RF/CPU Module is the main module that receives radio signals from a paired transmitter and
interprets those commands into an appropriate response to the attached I/O modules. There is one
RF/CPU module in the Flex M System.
The software application, Radio Control Programmer (RCP), is used to set the channel, access code, and
virtual dip switches. Communication and configuration is done through J2, the USB connector, which is
located opposite the RF connection. In addition to the RF connection to the RP-SMA antenna, the CPU
module also contains connections for the E-STOP relays, an auxiliary CAN port, and an external
connection for IR communication.
The E-STOP output consists of two relays in series. These relays can be configured as either NO or NC.
This is set via J8 (NC) or J10 (NO). To configure the output, remove the module as described in Section
3.9 and then reference Figure 7 for the location of jumpers J8 and J10.
The external CAN bus is not intended to be used for communication outside of the receiver system. This
is intended for future expansion of the Flex M platform. For CAN bus communication outside of the Flex
M receiver system, a communication module will need to be used within the system. Jumper J1 is used
to indicate if the CAN bus termination resistor is used or not.
Figure 7. GEN2 RF/CPU Module Detail View