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Q-SYS QIO-LVR4 Low-Voltage Relay Network I/O Expander

Q-SYS QIO-LVR4 Low-Voltage Relay Network I/O Expander

SoundPro Item: 145114 | Part Number: QIO-LVR4

Pricing available upon request

Pricing available upon request

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  • Four Dry Contact Relay Circuits Enable Control Of Non-Networked Devices
  • NO, C, And NC Terminals Support Flexible Control Wiring Configurations
  • PoE Operation Consolidates Power And Data Onto A Single Cable Run
  • Ethernet Thru Port Allows Daisy-Chaining Without Extra Network Switches
  • Drag-And-Drop Integration In Q-SYS Designer Speeds System Commissioning
  • Surface And Wall Mounting Hardware Included For Immediate Deployment

The QIO-LVR4 is designed for AV integrators and system designers who need to bridge Q-SYS networked control environments with legacy or non-networked control hardware. By providing four dry contact closure relay circuits over a Gigabit Q-LAN connection, it allows installed systems to trigger external devices such as room dividers, lighting controllers, projector screens, and door interlocks without requiring those devices to have native network connectivity.

Its modular I/O architecture keeps local wiring separate from core processing hardware, which simplifies physical installation and supports phased or scalable deployments in corporate AV, higher education, hospitality, and house-of-worship environments. PoE operation reduces cabling complexity by consolidating power and data onto a single Ethernet run, while Ethernet thru ports allow multiple units to be daisy-chained without additional network infrastructure. DC power daisy-chaining provides an alternative power path when PoE is not available.

Setup is handled entirely within Q-SYS Designer Software v9.12, using a drag-and-drop workflow that reduces commissioning time compared to proprietary relay expanders that require separate configuration utilities. Surface and wall mounting hardware is included, and an optional rack kit accommodates half-rack, 1RU panel installations where needed.

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Specifications

Relay I/O
Connectivity
Four (4) dry contact closure relay circuits with Normally Open (NO), Common (C), and Normally Closed (NC) connections
Rating
30 V AC @ 1A, 24 V DC @ 2A
Controls and Indicators
Front Panel LEDs
Power (blue LED), ID (green LED)
Front Panel Control
ID button (momentary)
Rear Panel Indicators
LAN (Thru): link, speed, activity multi-color LEDs; LAN (PoE): link, speed, activity multi-color LEDs
Network and Power
LAN (PoE)
Gigabit LAN connection for Q-LAN, PoE
PoE Specification
Conforms to IEEE 802.3af Type 1, Class 1
LAN (Thru)
Ethernet daisy-chaining
External Power Supply
24 VDC nominal, 2.5 A on Euro connector with second connector for daisy-chaining (QIO-PSU sold separately)
Power Consumption
2.2 W typical
Heat Load
7.5 BTU/hr
Dimensions
Dimensions
5.5 x 4.25 x 1.59 in (139.7 x 108 x 40.4 mm)
Weight
Product Weight
1.18 lbs (0.54 kg)
Shipping Weight
1.84 lbs (0.83 kg)
Environmental
Ambient Operating Temperature
0° C to +50° C
Humidity
5% to 85% RH through 30°C, non-condensing
Storage Temperature
-20° C to +70° C
Compliance
Compliance
FCC Part 15 Subpart B, ICES-003:2020, cTUVus, CAN/CSA 22.2, IEC 62368-1, RoHS 2, WEEE, CE, EN 55032, EN 55035, RCM: AS/NZS CISPR 32, NOM, GB8898, GB13837, GB17625.1, China RoHS, KS C 9035, KS C 9032, KC 62368-1

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