McCain ATC eX2 NEMA, Руководство пользователя

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
A -12VDC power supply, it receives the +12VDC from the power supply sub-assembly (M45891)
and returns -12VDC to the P1 connector.

A 12 positions connector (P1) for providing the DC voltages and control signals to the host board
(M69945A) and modem board (M66279A).

A three positions header (CONN BOX) for providing the DC voltages for the optional connector
box.
*** The power input for this sub-assembly depends on the configuration chosen; it can receive the AC line
input either through the
“A” connector resident on the optional connector box or from the front panel’s A2
connector (M44301).
2.5.3 Host Board Sub-Assembly (M57133A).
This sub-assembly supports almost all of the circuitry and physical connections of the communication
interfaces, as the name indicates, it is the host which supports the engine board, so that it contains all the
necessary circuitry to receive all communication channels, control lines from the engine board and all the
necessary I/O interfaces to the external world.
Below are briefly described the circuits and interfaces included onto the host board:

Two 50pos receptacle connectors to allow the Engine board to be plugged (P1 and P2).

The +5VDC backup circuit.

Voltage and Fault monitor driver circuit with a 3 positions header (P10) to
plug front panel’s A2
connector harness plug.

An ACTIVE LED driver circuit.

A 12 position connector (P8) to receive DC voltages and control signals.

A 10 position box connector (P9) to handle the communication with an optional connector box,
when configuration for a TS2 Type 2 controller is needed.

A 40 positions header (P3) for routing SP-1, SP-2, Ethernet, POWERUP and CPURESET signals
to the Modem board (M66279A).

One D-sub 15 positions connector (SP3) for SDLC communications.

One D-sub 25 positions connector, for SLDC communications and general purpose
communications (C12S).

Two D-sub 9 positions connectors (SP4 and SP8) for general purpose communications.

Two Ethernet switches and three Ethernet jack connectors (RJ1, RJ2, RJ3).

A USB switch and two USB connectors (USB1, USB2).

An SPI EEPROM with factory set configuration parameters.

A twenty positions header (P6) for attaching the LCD display.