For those unable to find the original manual, this guide provides the foundational knowledge to understand the MC 404’s architecture, wiring, and basic programming. However, for safety and compliance with local fire/burglary standards, always aim to get the official document or consult a professional security technician familiar with legacy IBE systems.
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| Feature | Specification | | :--- | :--- | | | 4 basic zones (expandable via expansion modules) | | Zone Types | Normally Closed (NC), Normally Open (NO), balanced (EOL) resistors | | Outputs | 1-2 open collector outputs, 1 siren driver (12V), 1 relay output | | Communication | Built-in PSTN dialer (voice/SIA formats) | | Power Supply | 230Vac primary, 12Vdc (7Ah battery backup) | | User Codes | 1 master + up to 8 user codes | | Programming | Via keypad (menu-driven) or sometimes PC software | For those unable to find the original manual,
| Terminal | Label | Function | | :--- | :--- | :--- | | 1-2 | AC 230V | Mains input (fused) | | 3 | +12V | Power output for detectors (max 500mA) | | 4 | GND | Common negative | | 5-8 | Z1, Z2, Z3, Z4 | Zone inputs | | 9 | TAMP | Global tamper loop input | | 10 | BELL+ / BELL- | Siren driver output (12Vdc) | | 11 | STROBE+ | Strobe light output | | 12 | AUX/ PGM | Programmable output (e.g., for GSM dialer trigger) | | TEL LINE | TIP, RING | Telephone line input from wall | | TEL SET | TIP, RING | Telephone output to house phones | and basic programming. However