QIO-ML2x2
The Q-SYS QIO-ML2x2 is a network audio endpoint native to the Q-SYS Ecosystem, serving as a mic/line input, line output device, 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.
Note: This topic provides an overview of the QIO-ML2x2. For specifications and installation documentation, see the QIO Series Network Audio Expanders product page on the QSC website.
The Q-SYS QIO Series network audio I/O expanders include these features:
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Native audio I/O expanders for Q-SYS
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QIO-ML4i: Four (4) mic/line inputs
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QIO-L4o: Four (4) line outputs
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QIO-ML2x2: Two (2) mic/line inputs and two (2) line outputs
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QIO-AES8x8: Four (4) AES3 Inputs and four (4) AES3 Outputs
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QIO-TEL2: Two (2) PSTN (POTS) interfaces
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Professional mic/line level inputs with +48 VDC phantom power and/or line outputs
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Microphone detection on inputs enables monitoring, usage statistics, and failure notifications
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Power-over-Ethernet capable
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Daisy-chain up to four QIO network I/O expanders on a single network run (with local daisy-chained DC power)
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Simple drag-and-drop integration and comprehensive management via Q-SYS Designer Software and Q-SYS Reflect
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Surface- or rack-mountable
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Includes surface mounting hardware
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QIO-RMK rack mounting kit sold separately
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QIO-PSU DC power supply sold separately
These Inventory components are available for the QIO-ML4i:
Front Panel
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Power LED – Illuminates blue when the Q-SYS ML2x2 is powered on
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ID LED – LED blinks green when placed into ID Mode via ID Button or Q-SYS Designer Software
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ID Button – Locates the ML2x2 in Q-SYS Designer Software.
Rear Panel
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External Power Input 24V DC 2.5 A – Auxiliary power, 24 VDC, 2.5 A, 2-pin Euro connector
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Daisy-Chain Power Output 24V DC 2.5 A – Auxiliary power, 24 VDC, 2.5 A 2-pin Euro connector
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LAN [PoE] – RJ-45 connector, PoE Type 1 Class 3, Q-LAN
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LAN [THRU] – RJ-45 connector, Ethernet daisy-chaining
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Device Reset – Use a paperclip or similar tool to restore default network settings and recover factory default settings. Before attempting a reset, refer to the Device Reset section for details.
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Line Outputs – two channels, balanced or unbalanced – green
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Mic/Line Inputs – two channels, balanced or unbalanced, phantom power – orange
Product specifications and dimension drawings for the QIO-ML2x2 can be found on the QIO Series Network Audio Expanders product page.
You can perform either a short reset or long reset:
- Use a Short Reset to restore connectivity to a device in the event that unintended network settings were specified in Q-SYS Peripheral Manager or the device is otherwise unreachable. A short reset will restore device IP settings back to Auto mode (DHCP) and delete all Static Routes. The configured hostname is retained.
- Use a Long Reset to restore the device to factory condition. This is useful for deeper troubleshooting, or when preparing the device for decommissioning or transfer.
CAUTION: A Long Reset clears all network settings (including hostname), disables 802.1x, deletes user-installed device certificates, deletes all logs, and clears the device password.
Performing a Short Reset
- Press and hold the Reset Button until the Status LED (NL, NM Series) or Power LED (QIO Series) begins flashing blue slowly – approximately 10 seconds.
- Release the button before 20 seconds elapse.
- The device performs its prescribed Short Reset and reboots.
Note: To cancel the Short Reset, release the button before 10 seconds has elapsed.
Performing a Long Reset
- Press and hold the Reset Button until the Status LED (NL, NM Series) or Power LED (QIO Series) begins flashing blue rapidly – approximately 20 seconds.
- Release the button when the LED begins flashing rapidly.
- Within 30 seconds, press the Reset Button again to confirm the reset.
- The device performs its prescribed Long Reset and reboots.
Note: To cancel the Long Reset, do not press the Reset Button again during the 30 second confirmation period.