The Relays; Latching - Lexicon MPX R1 - V2 REV User Manual

MPX R1 Version 2 User Guide

The Relays

Relay Tip
To find out what relay state
scheme your amp uses, con-
nect a 1/4" TRS cable be-
tween the MPX R1 and the
amp's rear panel jack for
amp switching. Experiment
by pressing the four MPX R1
relay state switches to deter-
mine how the default set-
tings of the MPX R1 affect
your amp's channel-switch-
ing scheme. Write down the
results before editing custom
states and setups.

Latching

Momentary,
normally open
Momentary,
normally closed
5-6
Two MPX R1 relays can operate in one of three modes: latching, momentary
normally open, and momentary normally closed. The Edit: Program parameter
reL allows you to select one of these options.
The relays are activated by pressing a button assigned to the tip relay, the ring
relay, or to one of four channels. Any button can be assigned to turn the tip or
the ring relay on and off. You can also assign any one of the four channels to any
button. The relay jack accepts a 1/4" TRS connector.
Tip/Ring
Pressing the button assigned to Tip causes the tip relay to change state.
Pressing the button assigned to Ring causes the ring relay to change state.
Channels
Pressing a button assigned to a channel causes the channel to change. The four
channels are defined as shown below:
Channel
1
2
3
4
Tip/Ring
The tip and ring relays are defined as being normally open. Pressing the button
assigned to the tip or the ring relay closes the relay for 100ms and then opens
it again.
Channels
The "momentary, normally open" state of a channel is Channel 1. Pressing a
channel button causes the relay to momentarily change to that channel's state
and then change back to Channel 1. (Pressing a button assigned to Channel 1
does nothing.)
Tip/Ring
The tip and ring relays are defined as being normally closed. Pressing the button
assigned to the tip or the ring relay opens the relay for 100ms and then closes
it again.
Tip Relay Ring Relay
open open
closed open
open closed
closed closed
Lexicon