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Universal 4.1 MLR»Web Installation and Operation Manual
INSTALLATION
Audio Inputs and Outputs
The Universal 4.1 MLR >> Web’s inputs and output have StudioHub+ compatible
RJ45 jacks, and balanced stereo XLR jacks wired in parallel. This means any input
connector can route to any output connector, providing an easy way to interface
between devices with different connectors without the need for custom cables.
Switching is accomplished via mechanical latching gold contact relays, which means
that the unit can route a signal in either direction and will keep routing that signal
even after losing power. Due to the passive nature of the switching, any input level and
impedance can be used. Inputs may be balanced or unbalanced, while output levels,
impedance, distortion, noise and balancing will match that of the selected input
XLR Connector Pinout
The input and output XLR connector pinouts conform to 3-pin XLR wiring stan-
dards: Pin 1 = Ground. Pin 2 = Positive. Pin 3 = Negative.
RJ45 Pinout
The input and output RJ45 jacks conform to StudioHub+ wiring standards.
Please use shielded twisted pair Cat5e or Cat6 cables and connectors (STP).
StudioHub+ Pinout:
Function: Wire Pair: RJ45 Pins:
Left+/AES+ White/Orange 1
Left-/AES- Orange/White 2
Right+ White/Green 3
Right - Green/White 6
n/c White/Blue 5
GND* Blue/White 4
15V-* White/Brown 7
15V+* Brown/White 8
GND Shield Shield
* StudioHub+ “DC-LINK” allows +/-15 VDC and Ground to pass on pin 8, 7, and
4 (respectively) of the RJ45. These pins are connected in parallel across all RJ45s.
NOTE: For AES/EBU signals please use AES/EBU qualified cable.
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