ADB Safegate ACE2, Руководство пользователя

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3.4 Combo Box-Mount
Figure 3: ACE2 Combo Box-Mount Assembly
1. Enclosure
2. ACE2 Front Display
3. ACE2 Control Keys
3.5 Main Circuit Board
The Main Printed Circuit Board ( Figure 4 ) is the central part of the design. It includes a micro-controller core that implements
main logic and provides calculating functions. A communication circuit provides the interface for the redundant
communication network (RCN), which is how ACE2 receives and transmits data to the ALCMS vault computer. It contains a
fiber optic interface connection for the Current Voltage Monitor (CVM), optional Insulation Resistance Monitoring System
(IRMS), and an RS-232 local configuration interface. The watchdog jumper (J2) is used to select whether the watchdog timer is
On or Off. Connecting pins 1 and 2 enables the watchdog timer. Connecting pins 2 and 3 disables watchdog timer, and
removing the jumper also disables watchdog timer. The normal setting for the watchdog timer is On. The watchdog timer
should only be set by qualified ADB Airfield Solutions personnel. The reset switch (SW1) is used during the design and test
phase, and has no application for the user. The keypad switches and an LCD connector provides a Graphic User Interface (GUI)
for local control and monitoring for all controllable functions. The display is connected to the main board by a ribbon cable.
The two-position DIP switch (SW2), is not currently used, but allows for future upgrades. The DIP switch must remain with
both selectors in the On position for proper operation. The Power Supply circuitry provides all ACE2 equipment with a
regulated and isolated power source.
96A0357, Rev. G, 2019/11/08 9
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