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FleX Controller – User Manual 11

Version 1.0

2.5.2 Back Panel Module

The sub-assemblies installed onto the back panel are described below:

2.5.2.1 Serial Interface Board Sub-Assembly (M58571A).

This serial communications interface board is used to interface with devices that are part of ITS and

NEMA cabinets. The LINESYNC, POWERDOWN and POWERUP signals are available on this board.

Below are briefly described the circuits and interfaces included onto the serial interface board:

 Two Ethernet jack connectors (RJ1, RJ2).

 One USB interface that goes to the USB switch on host board.

 Two asynchronous communication ports (SP1 and SP2) over DB-9 female connectors.

 SP3 for synchronous communication channel, it is available on “SDLC SP3” and “C12S

SP3/SP5”.

 SP5 for synchronous communication channel, it is only available on the “C12S SP3/SP5”.

 Two harnesses (SERIAL 1 and SERIAL 2) to connect the board with the host board (M58570A)

and receive the voltage power.

 Indicator leds for Tx and Rx status for the communication ports.

 Circuitry to provide 5V isolated.

2.5.2.2 Field I/O Board Sub-Assembly (M58573A).

This sub-assembly provide input and output ports to interact to the external world. The LINESYNC,

POWERDOWN and POWERUP signals are available on this board.

This sub-assembly contains the below circuits and connectors:

 64 parallel input ports and 64 parallel output ports supported on the C1S and C11S connectors.

 One harness (FIO) to connect the Field I/O board with the host board (M58570A).

 A three positions header for receiving the voltage power from the control signal board (M58574A).

 Circuitry to provide +5 and +12 isolated voltages.

 A two positions header to configure the watch dog function.

2.5.3 Bottom Panel Module

The bottom module (Figure 7) is composed by one main bottom panel provided with openings to cool the

electronic components; on this panel is installed another panel used to support the power supply and the

control signals assembly used to supply the necessary lines to the Hostboard assembly. The bottom

module is also provided with a RTC (Real Time Clock) backup capacitor and four bumpers foot in order to

place the controller upon a shelf.

McCain FleX M73101S User Manual

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