![](https://www.radialeng.com/wp-content/uploads/2018/04/relay-xo-input-768x621.jpg)
JR1 Remote
Locking XLR and ¼” combo jack used to connect the Radial JR1 Remote footswitch. The Relay Xo powers the JR1 Remote LED indicators to provide local visual feedback.
Remote Link
1/4" link output used to expand switching to additional Relay Xo units.
14-Gauge Steel
I-beam enclosure makes it impossible to torque the PC board.
Mic/Line Input
Balanced XLR input for microphone or any other audio source. Features locking XLR connector.
![](https://www.radialeng.com/wp-content/uploads/2018/04/Relay-xo-output-3-768x571.jpg)
Output-B
Alternate balanced XLR output. This output is active when the select switch is pressed inward or when a remote switch is closed.
No Slip Pad
This provides electrical isolation and plenty of ‘stay-put’ friction to keep the Relay Xo in place.
Output-A
Main balanced XLR output. This output is active when the switch is in the outward position or when a remote switch is open.
Cable Clamp
Prevents accidental power disconnection by locking down the AC adapter cable.
Power Jack
Connection for the included 15 volt (400mA) AC power adapter.
![](https://www.radialeng.com/wp-content/uploads/2018/04/relay-xo-right-768x384.jpg)
Output Select
This switch toggles the Relay Xo’s outputs. Two LED indicators display which output is active.
Ground Lift
Disconnects pin-1 (ground) on the input XLR jack to help reduce hum and buzz caused by ground loops.