Sensors & IoT

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    DMP 1142-GUARD Under-Desk Hold-Up Transmitter Guard (view 2)
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    DMP 1142-GUARD

    DMP 1142-GUARD Under-Desk Hold-Up Transmitter Guard

    Concealed under-desk mount for DMP wireless panic-holdup transmitters

    • Purpose-built guard ensures mechanical fit with DMP wireless panic-holdup transmitters.
    • Under-desk concealed mount prevents tampering and accidental activation in high-traffic areas.
    • Ergonomic guard design allows authorized staff rapid two-button activation during incidents.
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    DMP 1148-G Personal Pendant Wireless Panic Button
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    DMP 1148-G

    DMP 1148-G Personal Pendant Wireless Panic Button

    Wireless pendant for panic and holdup alerts in commercial facilities

    • Wearable panic button transmits wireless emergency alerts without reaching a hardwired device.
    • Status LED confirms signal transmission to the receiver, enabling rapid deployment verification.
    • Pre-installed non-removable battery eliminates ongoing maintenance; water-resistant for typical indoor use.
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    DMP 1154 Wireless Four-Zone Input Module
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    DMP 1154

    DMP 1154 Wireless Four-Zone Input Module

    Four wireless zones for door/window monitoring with HID and NFC support

    • Four independent wireless zones accept legacy door/window contacts with no new conduit runs.
    • Supports HID and NFC/13.56MHz credentials, reducing reader hardware across distributed sites.
    • 12VDC operation allows CR123A battery or PS12-5 supply for flexible permanent or temp installs.
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    DMP 1158 Wireless 8-Zone Input Module
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    DMP 1158

    DMP 1158 Wireless 8-Zone Input Module

    Wireless 8-zone input module for retrofit door/window monitoring without cables

    • Eight independent 12VDC zone inputs cover doors and windows without new cable runs.
    • Wireless connectivity eliminates conduit work in retrofits, leased spaces, and warehouses.
    • Integrates with DMP control panel ecosystems to expand zone capacity without panel replacement.
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    DMP GP-23 Hidden Wire Surface Mount Magnetic Contact (view 2)
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    DMP GP-23

    DMP GP-23 Hidden Wire Surface Mount Magnetic Contact

    Surface mount magnetic contact for DMP door and window monitoring

    • Surface mount design eliminates frame drilling, simplifying retrofits and commercial installs.
    • 1-inch rated gap tolerance gives installers reliable trigger thresholds on doors and windows.
    • Concealed screws and multi-direction wire routing reduce visible footprint and deter tampering.
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    DMP MET-44WG-18 Overhead Contact (view 3)
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    DMP MET-44WG-18

    DMP MET-44WG-18 Overhead Contact

    TCP/IP overhead contact for networked door/window detection

    • TCP/IP communication eliminates dedicated analog wiring runs to each sensor point.
    • Overhead form factor enables ceiling or transom mounting without door-frame hardware.
    • Integrates directly with DMP TCP/IP-zone-capable control panels and management systems.
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    DMP P2S-001 High Security Single Zone Magnetic Sensor (view 2)
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    DMP P2S-001

    DMP P2S-001 High Security Single Zone Magnetic Sensor

    Single zone magnetic sensor for door/window monitoring with HID integration

    • Single-zone magnetic detection simplifies per-door/window wiring in multi-zone panels.
    • HID credential integration correlates door contact events with cardholder access logs.
    • Intrusion/contacts cable category ensures signal compatibility with standard detection circuits.
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    DMP SM-20WG 3" Wide Gap Magnetic Reed Contact
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    DMP SM-20WG

    DMP SM-20WG 3" Wide Gap Magnetic Reed Contact

    3" wide gap magnetic reed contact for networked door monitoring

    • 3-inch operating gap handles reinforced steel frames and non-standard door geometries.
    • TCP/IP connectivity enables remote event logging across distributed perimeter door networks.
    • Supports up to 500 NFC/13.56MHz credentials for multi-zone access control deployments.
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  • DMP STB-10 3/8" Recessed Contact
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    DMP STB-10

    DMP STB-10 3/8" Recessed Contact

    3/8" recessed contact for concealed door and window monitoring

    • 3/8" recessed body fits tight door and window frame cavities for flush, hidden install.
    • Closed-loop wiring integrates directly with DMP panels and standard intrusion alarm systems.
    • Miniature form factor eliminates surface-mount housing, keeping hardware invisible post-install.
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  • Save $52.21
    DSC PG9939 Wireless Temperature Sensor
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    DSC PG9939

    DSC PG9939 Wireless Temperature Sensor

    Wireless temperature sensor for DSC systems, -20°C to 50°C range

    • PG9939 wireless temperature sensor, -20C to 50C
    • 128-bit AES encryption on CR2032 lithium battery
    • Up to 5-year battery life for facility monitoring
    Usually Ships in 2-3 Weeks Free shipping over $499
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  • Save $36.97
    Eaton Temperature & Humidity Sensor TH-Module - 103005822
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    Eaton 103005822

    Eaton Temperature & Humidity Sensor TH-Module - 103005822

    Temperature and humidity sensor module designed for environmental monitoring in surveillance, access control, and data center environments

    • Temperature and humidity sensor module for environmental monitoring
    • Detects thermal runaway and condensation risk in equipment racks
    • Integrates with Eaton UPS and PDU management systems
    Usually Ships in 2-3 Weeks Free shipping over $499
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  • ELK Products ELK-M1ZTSR ELK M1ZTSR Zone Temp Sensor Remote Probe
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    ELK Products ELK-M1ZTSR

    ELK Products M1 Zone Temp Sensor - ELK-M1ZTSR

    Zone temperature sensor expansion module for ELK M1 control panels

    • Zone temp sensor with remote probe for off-panel placement
    • Probe extension lets you sense temperature away from panel housing
    • Drops onto ELK M1 zone input for environmental automation
    Usually Ships in 2-3 Weeks Free shipping over $499
    $140.99
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  • ELK-M1ZTS Zone Temperature Sensor M1 Control Panel
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    ELK Products ELK-M1ZTS

    ELK Products M1 Zone Temperature Sensor M1Zts - ELK-M1ZTS

    Zone temperature sensor designed to integrate with ELK M1 control panels, enabling HVAC automation and environmental monitoring within a security

    • Zone temperature sensor adds HVAC monitoring to ELK M1 panels
    • Wired zone input integrates temperature data into security logic
    • Trigger automation on temperature thresholds at any monitored zone
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    $85.99
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  • Save $15.01
    GRI 2600 Water Sensor with Relay (view 3)
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    GRI 2600

    GRI 2600 Water Sensor with Relay

    Passive water sensor with relay for 12V/24V alarm systems, no power needed

    • Water sensor with built-in N.O. relay - no intermediate switching
    • Conductive moisture probe distinguishes water from humidity
    • 12V/24V alarm system compatible for direct panel zone wiring
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  • Save $0.89
    GRI 4561 tilt sensor for security monitoring and surveillance systems
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    GRI 4561

    GRI 4561 Tilt Sensor

    Miniature tilt sensor detects 13.3mm displacement for tamper detection

    • Compact 2.0 x 0.75 inch tilt sensor for covert equipment monitoring
    • Detects panel, cabinet, or display rotation away from secured position
    • 25A switching capacity, 5VA max for direct alarm zone wiring
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    GRI 4561R Tilt Sensor with Relay - Image 2
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    GRI 4561R

    GRI 4561R Tilt Sensor with Relay

    Tilt sensor with relay output for door and window monitoring

    • Tilt sensor with integrated N.O./N.C. relay output to panel
    • Switches clean contact closure - no software parsing needed
    • 5VA max switching capacity for direct alarm zone integration
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    GRI DPARM Closed Loop Pool Access Alarm (view 2)
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    GRI DPARM

    GRI DPARM Closed Loop Pool Access Alarm

    Closed-loop pool perimeter alarm with integrated access control

    • Closed-loop pool access alarm with continuous circuit monitoring
    • Detects tampering or line cuts immediately - no silent failures
    • 9V battery operation - drop-in for residential pool perimeter
    Usually Ships in 2-3 Weeks Free shipping over $499
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  • Save $5.93
    GRI GR3045 Panic Switch
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    GRI GR3045

    GRI GR3045 Panic Switch

    Hardwired panic switch with 80A relay capacity for emergency response

    • Finger-tip panic switch handles up to 80A direct alarm relay loads
    • Deliberate-actuation lever prevents accidental triggering
    • Operates 32 to 140 degrees F for unconditioned panic-button placement
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    GRI H8800 Humidity Sensor (view 2)
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    GRI H8800

    GRI H8800 Humidity Sensor

    Precision RH sensor for HVAC, data centers, and facility monitoring

    • Humidity sensor for HVAC, climate control, and facility monitoring
    • 10VDC operation drops into standard sensor power buses
    • Reliable output for commercial and industrial environment tracking
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    GRI PAA Pool Access Alarm (view 2)
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    GRI PAA

    GRI PAA Pool Access Alarm

    Standalone pool perimeter alarm with instant visual and audible alert

    • Closed-loop pool access alarm tuned for pool perimeter coverage
    • Ultralife 9V lithium battery for multi-year unattended operation
    • Filters wind, animals, and vegetation movement false alarms
    Usually Ships in 2-3 Weeks Free shipping over $499
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    GRI SG-2 ShockTec Vibration Sensor (view 2)
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    GRI SG-2

    GRI SG-2 ShockTec Vibration Sensor

    Ground vibration sensor with 5–500 Hz detection for perimeter breach warning

    • ShockTec vibration sensor detects climbing, cutting, and impact
    • Standoff warning before intruder reaches the fence or barrier
    • 12V DC or battery operation - relay contact closure to panel
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    GRI T8800

    GRI T8800 Temperature Sensor

    Industrial temperature sensor for HVAC control and facility automation

    • Industrial temperature sensor for factory floor and server rooms
    • 10VDC operation drops into standard environmental monitoring loops
    • US-made 1 lb housing for outdoor equipment enclosure deployments
    Usually Ships in 2-3 Weeks Free shipping over $499
    $156.92 $112.99 Save $43.93
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    GRI WVS Water Valve Shutoff
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    GRI WVS

    GRI WVS Water Valve Shutoff

    Automatic water shutoff controller stops floods at the source

    • Automatic water valve shutoff triggers on flood or abnormal flow
    • 55 mA draw at 12V DC - low alarm panel aux power impact
    • Integrated battery backup keeps shutoff active during AC outage
    Usually Ships in 2-3 Weeks Free shipping over $499
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  • Save $474.01
    Hanwha TRTN-PR001 Multi-Detection Environmental Sensor
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    Hanwha TRTN-PR001

    Hanwha TRTN-PR001 Multi-Detection Environmental Sensor

    Multi-threat environmental sensor for vaping, THC, aggression detection

    • Detects vaping, nicotine, THC, aggression, and emergency keywords in real time
    • PoE+ powered, IP65 rated, IK10 vandal resistant for indoor/outdoor mounting
    • AWS cloud alerts and Triton Dashboard integration for centralized monitoring
    Usually Ships in 2-3 Weeks Free shipping over $499
    $1,890.00 $1,415.99 Save $474.01
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    Hanwha TRTN-UA001 Environmental Sensor
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    Hanwha TRTN-UA001

    Hanwha TRTN-UA001 Environmental Sensor

    Multi-threat environmental sensor with substance & acoustic detection, PoE+

    • Detects vaping, smoke, marijuana, gunshots, screams, and glass breakage in real time
    • People counting and loitering analytics with IP66 rating and 10-year warranty
    Usually Ships in 2-3 Weeks Free shipping over $499
    $2,360.00 $1,533.99 Save $826.01
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    Honeywell 4191SN-WH

    Honeywell 4191SN-WH Recessed Door Contact Sensor

    Recessed wired door contact for commercial perimeter security without batteries

    • Hard-wired connection eliminates battery cycles and RF interference for 24/7 uptime.
    • Recessed form factor mounts flush into door frames, reducing tamper and damage risk.
    • Triggers zone detection automatically on door open, requiring no post-programming intervention.
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  • Honeywell 5819S Wireless Door/Window Contact with Shock Sensor - image 3
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    Honeywell 5819S

    Honeywell 5819S Wireless Door/Window Contact

    Wireless shock sensor and transmitter designed to integrate with Honeywell 5800 Series alarm systems

    • Three independent zones (shock, reed switch, external contact) reduce panel input consumption.
    • 6–8 ft omni-directional shock coverage detects forced entry without line-of-sight alignment.
    • Loop 3 accepts hardwired contacts, bridging legacy glass-break sensors into the 5800 RF chain.
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  • Honeywell PROSIXTEMP ProSIX Wireless Temperature Sensor - image 1
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    Honeywell PROSIXTEMP

    Honeywell ProSIX Wireless Temperature Sensor - PROSIXTEMP

    Wireless temperature sensor designed to integrate with Honeywell ProSIX security systems

    • Wireless integration eliminates sensor wiring runs to the ProSIX control panel.
    • Monitors ambient temperature alongside intrusion events in a single ProSIX system.
    • Suits data centers and climate-sensitive storage where temperature excursions need alerts.
    In stock · Ships same business day Free shipping over $499
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    Optex AP-360BR(C) 360-Degree Ceiling-Mount PIR Detector
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    Optex AP-360BR(C)

    Optex AP-360BR(C) 360-Degree Ceiling-Mount PIR Detector

    360° ceiling PIR detector, battery-powered, recessed mount

    • 360-degree omnidirectional PIR motion coverage from one ceiling unit
    • Battery-operated at 200 mA - no hardwired power pull to ceiling
    • Compact 52 x 42.5 mm ceiling-mount housing for discreet install
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    Optex AX-100TFRI

    Optex AX-100TFRI Outdoor Photoelectric Beam Detector

    Battery-powered outdoor beam detector, 200 ft range, IP65 rated

    • 200ft (60m) active infrared beam detector for outdoor perimeters
    • Battery-powered with 4 SAFT LSH20 lithium cells - no AC pull
    • Operates -13 to 140 degrees F for year-round outdoor exposure
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    Optex AX-130TN

    Optex AX-130TN Outdoor Beam Detector 20m

    4-beam outdoor detector with 20m range and IP65 rating

    • Outdoor 4-beam photoelectric detector with 20m (70ft) range
    • 4 independent channels for layered perimeter zone coverage
    • 38 mA draw at standard alarm panel voltage - low aux power impact
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    Optex AX-200TFRI

    Optex AX-200TFRI Outdoor Photoelectric Beam Detector

    Outdoor perimeter beam detector with 200ft range and IP65 rating

    • 200ft active infrared beam detector with IP65 outdoor housing
    • Operates -13 to 140 degrees F for year-round outdoor exposure
    • Standalone perimeter zone protects fence lines and rooftop edges
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    Optex AX-200TN

    Optex AX-200TN Outdoor Photoelectric Beam Detector 20m (70ft.)

    Outdoor thermal motion detector, 20m range, IP65 rated

    • Outdoor PIR motion sensor with dual-element pyroelectric design
    • Two-element filtering rejects sun and temperature swing false alarms
    • Hardwired install for stable outdoor perimeter motion coverage
    Usually Ships in 2-3 Weeks Free shipping over $499
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Sensors & IoT

Environmental sensors, I/O controllers, and IoT devices for monitoring temperature, humidity, door state, water detection, and other site conditions. IP-connected sensors integrate with VMS and BMS platforms for automated alerting.

Plan Your Deployment

  • Define sensor types needed per monitoring zone
  • Confirm IP connectivity and PoE availability at sensor locations
  • Evaluate SNMP, MQTT, or API integration with your management platform
Plan Sensor Deployment Browse Infrastructure

Sensors & IoT — Engineering-Grade Network Infrastructure for Commercial Deployments

This category covers 111 working models of sensors & iot 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

Port count and PoE budget come first. An 8-camera install needs at least 9 ports (cameras + uplink), with PoE budget covering the sum of per-camera PoE class. Account for uplink speed: 1 Gbps uplinks bottleneck under heavy video load on switches with 8+ high-resolution cameras. SFP+ or 10 Gbps uplinks remove that bottleneck on growing sites.

Managed versus unmanaged switches affect troubleshooting and VLAN segmentation. Managed switches (HPE Aruba, Cisco, Netgear ProSAFE M-series) support VLANs, link-aggregation, port mirroring, and SNMP monitoring — essential for any deployment over 16 cameras or with mixed traffic. Unmanaged switches work for small isolated camera networks but limit growth and troubleshooting visibility.

Layer 3 capability (routing, VLAN inter-VLAN routing) becomes important when surveillance, access control, and corporate traffic share the same physical network. Surveillance VLAN isolation is now standard practice — segregate camera traffic from corporate Wi-Fi and guest networks to prevent broadcast storms and lateral attack paths. Confirm the switch supports the VLAN count and ACL complexity you need.

Outdoor/industrial deployments need ruggedized switches. ComNet, Antaira, and Moxa make hardened switches rated for -40°C to +75°C, vibration, and waterproof housings. DIN-rail mounting fits standard outdoor enclosures. Standard data-closet switches in outdoor enclosures fail within 1-2 years from condensation and temperature swings; spec the right environment rating up front.

Key Specs in This Category

SpecAvailable Options
Resolution2MP, Thermal
IP RatingIP66, IPX5, IP56, IP65
ConnectivityWired
PowerAC/DC, Battery, ON, PoE, 9VDC via alkaline battery @ 40µA (resting)
TypeSecurity Device, Accessory, Motion Sensor, Beam Sensor, Laser Sensor, Vehicle Sensor, Access Point, Switch
DurabilityIndoor

Top Brands in This Category

Frequently Asked Questions

What's the difference between managed and unmanaged PoE switches?

Unmanaged switches power-on and forward traffic without configuration — simplest deployment but no VLAN, no monitoring, no troubleshooting visibility. Managed switches add VLANs, link-aggregation, port mirroring, SNMP, and remote-management interfaces. For deployments above 16 cameras or those sharing infrastructure with other systems, managed is the right choice; the per-port cost is modest and the operational benefit is large.

How much PoE budget should I size for?

Sum the PoE-class budget of all PoE-powered devices, then add 20-30% headroom for growth. Eight 802.3at cameras at 30W max each is 240W minimum — but a 130W-budget 8-port PoE+ switch can't deliver that. Confirm both per-port budget and total PoE budget; many entry-level switches advertise PoE+ ports but cap aggregate budget at half the per-port maximum.

Do I need 10 Gbps uplinks?

For installations under 32 cameras with mid-resolution streams, 1 Gbps uplinks suffice. Above that, or when you need fast investigative playback for many simultaneous reviewers, 10 Gbps (SFP+) uplinks remove the choke point. NVRs writing to NAS over the network also benefit. SFP+ has become reasonably affordable on managed switches; opt for it on new installs over 16 cameras.

Can I run VoIP and video on the same switch?

Yes — modern managed switches use VLAN segregation to keep VoIP, video, and data traffic separated even on shared physical ports. Use QoS (Quality of Service) to prioritize VoIP for low latency and assign video its own queue. Avoid mixing untagged traffic types on a single switch port without VLAN configuration; broadcast storms and bandwidth competition cause both voice and video quality issues.

What's the right uplink between buildings on a campus?

Single-mode fiber for runs over 100 m, multi-mode for shorter runs (typically up to 550 m on OM3, 300 m on OM4 at 10 Gbps). Bidirectional SFPs (single fiber instead of pair) save fiber count when the run is already deployed. Avoid copper between buildings — ground-potential differences during lightning strikes destroy switch SFP modules even when surge-protected.

Need help choosing? Talk to a Senior Specialist — direct line 877-277-7147 or request a quote.