Relays & I/O Interfaces
Showing Results for Relays & I/O Interfaces
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System Sensor
SKU: PR-1
System Sensor PR-1 Single Relay Module
Single relay module for fire alarm system expansion across multi-voltage setups
- Single relay output expands auxiliary control channels for locks, strobes, or dampers.
- Multi-voltage input eliminates power conditioning hardware in mixed-voltage installations.
- Relay contacts integrate third-party access control and signaling devices via standard switching.
$33.99 -
System Sensor
SKU: PR-2
System Sensor PR-2 Multi-Voltage Dual Form C Relay Module
Dual Form C relay module with TCP/IP control for multi-voltage access systems
- Dual Form C relays support both NO and NC logic for flexible strike and lock sequencing.
- TCP/IP control eliminates dedicated hardwired runs, reducing installation labor across sites.
- Supports NFC and 13.56 MHz credentials for modern card-based authentication workflows.
$32.99 -
System Sensor
SKU: PR-3
System Sensor PR-3 Multi-Voltage Dual Form C Relay Module
Dual Form C relay module with 115V/230V switchable input for fire/security
- Accepts 115V or 230V input on one unit, eliminating region-specific spare-parts inventory.
- Dual Form C contacts support NO, NC, or changeover wiring for alarm and control circuits.
- TCP/IP integration enables remote relay status monitoring and actuation from a central console.
$32.99 -
System Sensor
SKU: R-10T
System Sensor R-10T Single SPDT Relay Module with Tamper
Single SPDT relay module with tamper detection for networked fire systems
- Switches loads up to 10 A at 125/250 VAC for door strikes and notification devices.
- Rated 35VDC with SPDT contacts (NO/NC/COM) for flexible wiring in fire alarm panels.
- Integrated tamper detection alerts operators to unauthorized module removal or access.
$43.99 -
System Sensor
SKU: R-14E
System Sensor R-14E 4-Gang SPDT Relay Module with EOL
4-gang SPDT relay module with EOL supervision for access control
- Each of 4 independent SPDT gangs switches up to 10 A at 125/250 VAC.
- EOL supervision on every gang catches open-circuit faults before silent failures occur.
- Operates at 35VDC across –40°F to 158°F, suited for distributed alarm architectures.
$209.99 -
System Sensor
SKU: R-14T
System Sensor R-14T 4-Gang SPDT Relay Module with Tamper
4-gang SPDT relay module with tamper monitoring for addressable fire loops
- Four independently addressable SPDT relays distribute switching across zones on one loop.
- Operates at 24 VDC across –40°F to 158°F, supporting harsh commercial and industrial sites.
- Integrated tamper monitoring alerts the control panel to enclosure access or removal attempts.
$137.99 -
Valcom
SKU: VIP-848AR-IC
Valcom VIP-848AR-IC IP Input & Relay Module
Rack-mount IP input/relay module with PoE for InformaCast systems
- PoE (802.3af) eliminates separate 24V supplies at remote modules
- Hardwired contact closures convert to networked input events
- 6.6 lb rack-mount IP input/relay module InformaCast compatible
In stock · Ships same business day$1,008.00 $537.99 Save $470.01
Relays & I/O Interfaces
Relays and I/O interfaces enable integration between surveillance, access control, and external systems. These components support automation, alarm triggers, door control, and system expansion within commercial security deployments.
Plan Your Deployment
- Input and output channel requirements
- Voltage and load compatibility
- Integration with cameras, NVRs, or control panels
- Automation and trigger event planning
- Expansion capacity for future system growth
Relays & I/O Interfaces — Engineering-Grade Installation Accessories for Commercial Deployments
This category covers 38 working models of relays & i/o interfaces sourced manufacturer-direct or through channel-direct US distribution. Build the rest of your system around the architectural choices below — compatibility, environmental rating, and lifecycle decisions made here propagate through every downstream component you specify.
What to Look For
Compatibility comes first. Mounting brackets, housings, and adapters are specific to the camera or device they support — the same manufacturer often makes parallel lines that don't share accessories. Verify the part number against the camera/device datasheet or compatibility list before ordering. Installation labor consumed troubleshooting a mismatched mount is the most common rework on commercial jobs.
Environmental rating determines material and finish. Indoor accessories typically use steel or aluminum with a powder-coat finish; outdoor accessories need stainless steel or specifically-rated coastal-grade finishes for salt-air resistance. UV exposure degrades plastic over years; choose UV-stabilized polymers or metal for sun-exposed installs. Plan for replacement at year 7-10 on outdoor plastic accessories.
Mounting load capacity must exceed device weight by a healthy margin. Camera weight, housing weight, and any wind loading on PTZs combine. Wall, ceiling, and pole mounts each have rated maximum loads — check before specifying. Pole-mount and pendant-mount installations need conduit, junction boxes, and weather-sealing that aren't always specified in the camera kit.
Wire management and accessibility for service get overlooked in early planning. Bottom-loaded cable entry in housings, swing-out mounting plates, and accessible junction boxes save hours when a camera needs service. Cheap mounts that require complete dismount to access cables drive labor cost up at every service call. Specify service-friendly mounting hardware on installs you expect to service for 10+ years.
Key Specs in This Category
| Spec | Available Options |
|---|---|
| IP Rating | IP66 |
| Power | 24VDC, AC/DC, PoE+, PoE, 12VDC, 24VAC, 48VDC |
| Channels | 128 |
| Type | Relay Module, Power Supply, Network Sound Projector, I/O Box |
Top Brands in This Category
Frequently Asked Questions
Will this mount work with my camera?
Mounts are camera-specific in most cases. The product description and manufacturer's compatibility list are the authoritative source. If you're not certain, send the camera model and the mount part number to our Senior Specialists; we'll confirm compatibility before you order. Returning a mismatched mount after installation labor is significantly more expensive than checking up front.
Do I need a junction box?
For most outdoor and exposed-conduit camera installs, yes — junction boxes house cable terminations and protect splices from weather. The camera's mounting requirements often specify the junction-box size and material. Some camera-and-mount combinations integrate the junction box into the mount; others require a separate box. Confirm before ordering to avoid pulling cable into an installation that can't accept it.
What's the difference between a wall mount and a pendant mount?
Wall mounts attach to vertical surfaces and project the camera outward. Pendant mounts attach to ceilings or overhead structures and suspend the camera below. Pole mounts are a specialized wall mount for poles. Choose by the mounting surface available and the field-of-view orientation required; many cameras work in any mount with the right adapter.
Are stainless steel mounts worth the extra cost?
For outdoor coastal installs (within ~5 miles of saltwater), yes — galvanized steel rusts visibly within 2-3 years in coastal air. For inland outdoor, marine-grade is overkill; powder-coated galvanized lasts 10+ years. For corrosive industrial environments (chemical plants, wastewater), stainless steel or specifically-rated coatings extend service life dramatically. Match the material to the environment, not the budget pressure.
Can I use one brand's mount with another brand's camera?
Sometimes — many mounts accept standard mounting patterns (¼-20 thread, M6 pattern, VESA spacing) and cross brands. Manufacturer-specific cast housings rarely do. Check the mount's hole pattern and weight rating against the camera's specs. When in doubt, use the camera manufacturer's recommended mount; cross-brand savings on mounts are typically small and the warranty implications of mismatched hardware aren't worth the risk.
Need help choosing? Talk to a Senior Specialist — direct line 877-277-7147 or request a quote.