Overview
The Q-SYS QIO-L4o is a network audio endpoint native to the Q-SYS Ecosystem, serving as a line output that enables network-based audio distribution. The compact form factor includes surface mounting hardware permitting discreet and strategic mounting while an optional rack kit fits one to four devices into a standard 1U nineteen-inch format. The four-channel granularity locates the right amount of analog audio connectivity in desired locations without bulk or waste. Up to four devices may be daisy-chained off one access switch port, provided 24 VDC power is available. Alternatively, each may be individually powered over Ethernet.
The peripheral shall provide four (4) channels of analog audio output that are remotely configurable. The peripheral shall receive up to 4 networked audio channels, formatted as Q-LAN networked audio, from the system processor. The peripheral shall operate natively on a standard gigabit Ethernet infrastructure available from a broad range of network infrastructure manufacturers. The peripheral shall employ DiffServ quality of service, IGMP, IEEE 1588-2008 (PTPv2) precision time protocol, and UDP/IP audio data transport with floating-point format audio data representation. The peripheral shall support 802.1x authentication. The peripheral shall not require IEEE 802.1AS, IEEE 802.1Qat, or IEEE 802.1Qav support on the network infrastructure to function. The overall system latency to analog output from any analog input on the network shall be 3.167 ms. The system shall also be able to achieve an overall system latency of 3.167 ms over Layer-3 routed network infrastructure without any additional hardware, software, or connection services between subnets.
The peripheral shall operate on PoE or DC power input and have the following front panel controls and indicators: Unit ID button, green ID LED, and blue Power LED. A web interface shall provide basic network and security configuration, status, and log retrieval. The peripheral shall be natively integrated into Q-SYS Designer Software for network discovery, real-time configuration, control, monitoring, supervision, and network audio routing.
The peripheral’s rear panel shall provide two 2-pin power Euroblock connectors for daisy-chainable DC power, four (4) balanced audio outputs on a 12-pin Euroblock connector, a recessed settings reset button, and two (2) RJ45 connectors for daisy-chainable Ethernet configured as Q-SYS Network ports: one (1) PoE port, RJ45 1000 Mbps only; one (1) Pass-thru port, RJ45 1000 Mbps only.
The peripheral shall feature multiple mounting options including a standard 19-inch rack or surfaces such as under-table or on-wall. It shall be one-quarter (1/4) rack space wide and less than one (1) rack unit tall (1.59 inches / 4.04 cm), allowing mounting alongside quarter-rack width QSC Q-SYS QIO peripherals using an optional rack tray kit. The peripheral shall include two (2) reversible steel angle brackets for surface mounting.
The peripheral dimensions shall be 1.59" x 4.25" x 8.5" (4.04cm x 10.80cm x 21.59cm).
The peripheral shall be the QSC QIO-L4o.
Features
- Native audio I/O expanders for Q-SYS
- QIO-ML4i: Four (4) mic/line inputs
- QIO-L4o: Four (4) line outputs
- QIO-ML2x2: Two (2) mic/line inputs and two (2) line outputs
- QIO-AES8x8: Four (4) AES3 Inputs and four (4) AES3 Outputs
- QIO-TEL2: Two (2) PSTN (POTS) interfaces
- Professional mic/line level inputs with +48 VDC phantom power and/or line outputs
- Microphone detection on inputs enables monitoring, usage statistics, and failure notifications
- Power-over-Ethernet capable
- Daisy-chain up to four QIO network I/O expanders on a single network run (with local daisy-chained DC power)
- Simple drag-and-drop integration and comprehensive management via Q-SYS Designer Software and Q-SYS Reflect
- Surface- or rack-mountable
- Includes surface mounting hardware
- QIO-RMK rack mounting kit sold separately
- QIO-PSU DC power supply sold separately
Specifications
- Connectivity: Four (4) line outputs
Line Outputs
- Output audio range level: -36 dBu to +24 dBu
- Input Frequency Response
- 20 Hz - 20 kHz: +/- 0.5 dB
- Output THD+N @ 1 KHz
- +10 dBu output level: < 0.01%
- Output dynamic range: 108 dB
- Output to output crosstalk @ 1 kHz: > 85 dB
- Output Impedance: 150 Ω to 300 Ω
- Sample rate: 48 kHz
- Bit depth: 24 bit
Other Connectors
- External power supply: 24 VDC nominal, 2.5 A on Euro connector with second connector for daisy-chaining (QIO-PSU power supply sold separately)
- LAN (PoE): Gigabit LAN connection for Q-LAN, PoE
- PoE specification: Conforms to IEEE 802.3af Type 1
- LAN (Thru): Ethernet daisy-chaining
General
- Dimensions: 8.5 x 4.25 x 1.59 in (215.9 x 108 x 40.4 mm)
- Weight: 1.72 lb (0.78 kg)
- Mounting options: Surface- and wall-mountable (hardware included)
Rack-mountable; 1RU, quarter-rack width (QIO-RMK rack kit sold separately)
Environmental
- Ambient operating temperature range: 0°C to +50°C
- Thermal dissipation: 11.9 BTU / Hour
- Humidity: 0% - 85% through 30°C, non-condensing
- Storage temperature: -20° to 70°C
- Compliance: FCC 47 CFR Part 15, IC ICES-003, CE (EN55032, EN55035), EU RoHS directive 2011/65/EU, WEEE directive 2012/19/EU,
China RoHS directive GB/T26572, EAC, UL, C-UL, NOM-019