WhatsApp: +86 16626708626
Email: 
Phone: +86 16626708626Description
Key Technical Specifications
- Application: Internal communication backbone for AutroSafe I/O modules in fire alarm panels/controllers.
- Part Number: 116-BSL-310 (commonly referenced in marine catalogs as 060547154).
- System Compatibility: AutroSafe panels/controllers including BS-310, BS-420, BC-420 families; always paired with BSS-310A power module.
- Function: Provides common internal communication line between all I/O modules (BSD/BSB/BSJ/BSE/BSF, etc.).
- External Interface: RS-232 with full handshake (TX, RX, CTS, GND); galvanically isolated for floating reference.
- Baud Rate: 9600 baud, 1 stop bit, no parity.
- Battery Monitoring: Built-in monitoring with control outputs for charger/battery activation; thresholds: battery failure <22.6 V; charge fault <28.5 V / <25.5 V.
- Earth-Fault Monitoring: Detects insulation faults on battery lines (B+ <52 kΩ ±4 kΩ; B− <10 kΩ ±2 kΩ).
- Mounting: DIN rail; must be mounted directly above BSS-310A power module (first module at bottom of rail).
- Internal Cabling: Two ribbon cables—Cable 1 to BSF-310B connection module; Cable 2 to BSS-103A/02 power supply.
- Current Consumption: 24VREG: 15 mA total; idle 24VREG 13 mA; idle 5VREG 2 mA; idle 24VBAT 18.5 mA.
- Mechanical: 95 × 89 × 32 mm; 81 g; Zytel FR7200 housing; plug-in backplane connection.
- Certifications: Designed to meet EN 54 requirements; CE marked.
- Addressing: Automatic (no DIP switches or jumpers).
Product Introduction
The AUTRONICA BSL-310 (116-BSL-310) is the communication module that forms the internal RS-232 backbone for AutroSafe fire and gas detection panels, linking all I/O modules (loop drivers, output, input, and connection modules) to the controller.. It provides galvanically isolated RS-232, battery monitoring with charger control outputs, and earth-fault detection for the 24 V battery system..
Field teams rely on the BSL-310 in BS-310/BS-420/BC-420 panels because it auto-addresses, snaps onto DIN rail above the BSS-310A, and uses two short ribbon cables to tie the rail together—no DIPs, no firmware keys.. We stock verified units (New Surplus or Refurbished) and can supply ribbon cable pinouts and mounting photos on request..
BSL-310
BSL-310
Troubleshooting Quick Reference
| Symptom | Possible Cause | Relevance to this Part | Quick Check Method | Recommendation |
|---|
| Symptom | Possible Cause | Relevance to this Part | Quick Check Method | Recommendation |
|---|---|---|---|---|
| Panel shows “communication fault” across multiple I/O modules | BSL-310 not seated; ribbon cable 1 or 2 loose/damaged | ✅ High | Power down; reseat BSL-310; verify both ribbon cables are fully inserted at , BSF-310B, and BSS-103A/02 . | Replace damaged ribbon; ensure is directly above BSS-310A as required . |
| No RS-232 output to external device (printer/PC) | RS-232 lines open; wrong wiring at BSF-310B terminal | ✅ Medium | With panel powered, measure TX/RX at BSF-310B terminal block (pins 3/7 per wiring table); confirm GND continuity . | Correct wiring to TX/RX/CTS/GND; verify 9600/8N1 settings on external device . |
| Battery fault alarms persist after battery replacement | Earth-fault or voltage threshold trip; monitoring circuit fault | ✅ Medium | Measure battery voltage at terminals; check for leakage to chassis; verify B+ and B− insulation (>52 kΩ / >10 kΩ thresholds) . | Dry/clean battery compartment; retest; if thresholds still trip with good battery, swap . |
| Modules not auto-addressing / not seen by panel | missing or failed; rail order incorrect | ✅ High | Confirm BSS-310A is first (bottom) module and is immediately above it; check panel module list . | Reorder rail; replace if panel still reports missing comms backbone. |
| Intermittent faults after vibration (marine) | Ribbon cable connectors loosened; rail clips not fully engaged | ✅ Medium | Visual inspection; gently press each module and connector; check for cracked housing near clips. | Re-seat all modules; add cable ties for ribbon strain relief; replace worn DIN rail clips. |
❗ Before swapping, photograph the rail order (BSS-310A at bottom, then ), both ribbon cable orientations, and any fault texts. Send those plus your panel model (BS-310/BS-420/BC-420) and we’ll confirm the exact cabling map.
Frequently Asked Questions (FAQ)
Q: Is the hot-swappable in a live panel?
A: No. Power down the panel before removing or inserting the . It’s the comms backbone for the whole rail—pulling it live can drop all I/O modules and corrupt the session.
Q: Where exactly does the mount on the DIN rail?
A: Directly above the power module, which is always the first (bottom) module. The datasheet is explicit: at bottom, then immediately on top.
Q: Do I need to set addresses or jumpers on the ?
A: No. It auto-addresses on the internal backplane. Just mount it in the correct position and connect the two ribbon cables (to BSF-310B and BSS-103A/02).
Q: What baud rate and framing does the RS-232 port use?
A: 9600 baud, 1 stop bit, no parity (8N1). The port is galvanically isolated, so you can float the reference if needed.
Q: My panel has both and a separate network card—do I still need the ?
A: Yes. The handles the internal module bus. Even if you add external network options, the I/O modules on the rail still talk through the .
Q: Can I use a generic DIN-rail RS-232 card instead?
A: No. The isn’t just an RS-232 converter—it manages the internal AutroSafe module bus, battery monitoring, and earth-fault detection. Generic cards won’t speak that backplane protocol.
Q: Why is pricing lower than factory-new?
A: This is a legacy module for older AutroSafe panels; genuine new stock is limited. Our units are surplus or refurbished OEM hardware, tested for backplane comms, RS-232, and monitoring functions. Condition is stated explicitly per listing—no vague claims.
