Autronica BSS-103A Power Supply Loop Interface Module

Description

Key Technical Specifications

Product Introduction & Supply Chain Strategy

The Autronica BSS-103A (Assembly P/N 7212-323.0001) is a specialized sounder and alarm output driver module engineered for legacy Autronica BS-100 series marine and industrial fire alarm panels. It manages monitored output channels for audible sirens, visual beacons, and plant trip signals while continuously checking field wiring for open-circuit and short-circuit faults.

Because Autronica has officially retired the legacy BS-100 product line, securing this module as New Surplus is a vital risk-mitigation strategy for vessel superintendents and offshore plant managers. Installing factory-sealed surplus eliminates the severe degradation risks of second-hand marine parts, preserving life-safety compliance without forcing a costly, multi-week panel overhaul.

Installation & Configuration Guide

1.Pre-Installation (Prep & Safety):Notify watch team and apply LOTO.

1. Switch the fire main controller to Maintenance Mode and notify all vessel/facility watch officers.
2. De-energize primary 230 V AC panel power and disconnect 24 V DC emergency backup batteries using Lock-Out/Tag-Out (LOTO) procedures.
3. Put on a grounded ESD wrist strap clamped to the panel’s earth ground.
4. Photograph all output field wiring, terminal block assignments, and jumper positions on the existing BSS-103A module before touching any leads.

2.Removal:Disconnect field wiring and unseat card.

1. Carefully unplug or unscrew field sounder terminal connectors from the front header. Do not pull directly on individual field wires.
2. Loosen the upper and lower panel card retention screws.
3. Slide the board straight out along its guide rails to prevent bending or stressing the backplane connector pins.
4. Store the removed PCB inside an ESD-shielded protective bag.

3.Installation (Clone & Seat):Match jumpers and seat module firmly.

1. Unpack the New Surplus BSS-103A unit within an ESD-safe workspace.
2. Compare hardware jumper configurations against the pre-installation photos and match them exactly.
3. Align the card with the designated chassis slot guide rails and push firmly until the backplane connector locks into place.
4. Secure the top and bottom retaining screws, then reattach field terminal blocks.

4.Power-On & Testing:Verify supervision voltage and trip sounders.

1. Restore 24 V DC bus power and reconnect standby battery leads.
2. Confirm that power LEDs illuminate solid green and no sounder loop fault lamps are lit on the main CPU operator display.
3. Check monitored output circuits for proper end-of-line (EOL) resistor supervision voltage.
4. Initiate a controlled alarm test to confirm sounder/beacon activation across all configured output zones.

BSS-103A

BSS-103A

Firmware/Software Versions & Upgrade Notes

• System Integration: The BSS-103A operates directly as a hardware output interface card within the BS-100 panel architecture. It does not require independent board-level firmware flashes.
• Hardware Revisions: BSS-103A (P/N 7212-323.0001) serves as a direct drop-in replacement for earlier BSS-103 output variants. Always verify that end-of-line resistor values on field circuits match panel specifications when replacing older revisions.
• Over-Current Warning: Never exceed the maximum rated current per sounder channel. Overloading monitored sounder outputs can blow internal onboard PCB traces or thermal fuses, resulting in unexpected loss of alarm notifications during an emergency.

Frequently Asked Questions (FAQ)

Is this card genuine brand new surplus or a refurbished pull?

This unit is Brand New Surplus. It is not used, has never been installed in an operational system, and is not pulled from a ship breaking yard. All cards undergo rigorous quality verification and remain in anti-static protective packaging to ensure OEM-level performance.

Why is New Surplus preferred over cheaper used marine pulls?

Refurbished or used marine circuit boards are routinely exposed to salt mist, vibration, and thermal stress, which severely degrades output switching relays and capacitors. A failed sounder interface card can cause complete loss of audible alarms or trigger unexpected safety shutdowns, costing far more in vessel delays than the initial savings on a used part.

Since the is an obsolete item, how is quality verified?

Every module undergoes comprehensive non-destructive quality checks under our standard operating procedures. We inspect PCB traces under magnification, check backplane pin integrity, confirm jumper setups, and verify anti-static handling throughout storage.

Can I swap the card while the system is powered on?

No. Hot-swapping output modules on legacy fire panels can induce voltage transients across the backplane. This can damage sensitive central processing logic or trigger false field trips. Always isolate power before replacing hardware.

Does replacing the require system reprograming?

No. The acts as a physical output interface. As long as hardware configuration jumpers match the original card, the main BS-100 controller will automatically recognize and monitor the unit upon power-up.