Altronix ALEOL10 End-of-Line Resistor Pack (8x 10K Ohm)
Overview
The Altronix ALEOL10 supplies eight 10,000 ohm end-of-line (EOL) resistors in a single pack — the passive termination components required to supervise detection loops in commercial intrusion, fire, and access control systems. If your panel requires supervised zones and you're wiring door contacts, motion detectors, or glass-break sensors into a normally-closed or normally-open loop, an EOL resistor at the end of each circuit is mandatory for code-compliant, tamper-indicating operation. The ALEOL10 keeps a job-site supply of these components on hand without the nuisance of sourcing individual resistors from a general electronics distributor.
Key Features
- 10K Ohm Resistance Value: 10,000 ohm is the industry-standard EOL value specified by the majority of commercial alarm control panels and UL-listed intrusion systems. Having the correct value on hand avoids panel zone-fault conditions caused by mismatched termination.
- 8-Resistor Pack: Eight units per pack means a single ALEOL10 covers up to eight supervised zones — enough for a typical small commercial buildout or a multi-door Altronix power and control installation without opening multiple component bags mid-job.
- Passive Component, Zero Configuration: EOL resistors require no programming, no power, and no configuration. Wire in series or parallel per your panel's zone wiring diagram and supervision is immediately active — no commissioning step required.
- Broad Panel Compatibility: 10K ohm EOL resistors are accepted by the supervised zone inputs of the vast majority of commercial-grade intrusion and fire alarm panels. Verify your specific panel's EOL resistance requirement before ordering — some manufacturers specify alternate values (1K, 2.2K, 4.7K).
Integration & Compatibility
EOL resistors in the security accessories category are passive components without active electronics, firmware, or protocol dependencies. The ALEOL10 is compatible with any supervised-zone panel input that specifies a 10K ohm termination resistor. Always confirm the EOL value in your panel's installation manual before deploying — mixing EOL values across zones will generate persistent fault conditions and can prevent UL listing compliance on the installed system.
Frequently Asked Questions
Q: What resistance value do the ALEOL10 resistors provide?
A: Each resistor in the ALEOL10 pack is rated at 10,000 ohms (10K ohm), the most common EOL value specified for supervised alarm zones.
Q: How many resistors are included in the ALEOL10 pack?
A: The ALEOL10 includes eight (8) individual 10K ohm resistors.
Q: What types of systems can use the ALEOL10 resistors?
A: Any supervised-zone alarm panel — intrusion, fire, or access control — that specifies 10K ohm EOL termination can use these resistors. Confirm your panel's required EOL value in its installation documentation before wiring.
Q: Do the ALEOL10 resistors require any programming or configuration?
A: No. EOL resistors are passive components. Install them at the end of each supervised zone loop per your panel's wiring diagram — no programming, firmware, or power required.
Q: Can I use the ALEOL10 with panels that specify a different EOL resistance value?
A: No. If your panel requires a different EOL value (such as 1K, 2.2K, or 4.7K ohm), using a 10K ohm resistor will generate a zone fault. Always match the resistor value to the panel specification exactly.
The ALEOL10 is exactly the kind of consumable that gets overlooked during job-site prep and then causes delays when a zone won't supervise. Eight 10K ohm resistors per pack — the correct value for the overwhelming majority of commercial intrusion and access control panels — means you can terminate a small commercial buildout from a single order without running to a supply house mid-install.
Technical Highlights:
- 10K Ohm Value: Matches the default EOL specification for most commercial alarm panel manufacturers; installing the correct value is required to achieve a valid supervised-zone reading and avoid persistent zone-fault alarms.
- 8-Pack Quantity: Enough to terminate eight independent supervised zones — practical for a single small commercial site or to stock a service van without carrying bulk loose components.
- Passive Construction: No power, no configuration, no firmware. The ALEOL10 resistors wire directly into the zone loop per the panel's diagram; supervision is active the moment wiring is complete.
Deployment Considerations:
- Confirm the EOL resistance value in your specific panel's installation manual before pulling the ALEOL10 from your kit — some panels (DSC, Bosch, certain Honeywell models) specify non-standard values; a mismatched resistor will produce a continuous zone fault.
- For dual-EOL wiring schemes (where resistors are placed both at the panel and at the end of the loop), verify that your panel's wiring diagram calls for 10K on both positions — some dual-EOL configurations use different values at each termination point.
The ALEOL10 is the right stocking item for integrators commissioning supervised intrusion or access control zones on commercial panels that specify 10K ohm EOL termination — straightforward consumable, no surprises on the bench or in the field.
