Product manual

41
Controls and Jumpers
Jumpers
JP1 2-wire RX
Termination (1)
Selects whether the unit provides a high or low impedance termination to
Line 1. The default position is “A”, which terminates the line at 600 Ω. In
multiple remote systems, all the remotes should be in the “B” position
(6000 Ω), except for the farthest remote that terminates the line in 600 Ω.
JP1 should always be in position “B” for 4-wire systems.
JP2 2-wire RX
Termination (2)
This jumper is used in the Model 284 to select a high or low impedance
termination to Line 2. In multiple remote systems, all the remotes should
be in the “B” position (6000 Ω), except for the farthest remote that
terminates the line in 600 Ω. JP2 should always be in position “B” for 4-
wire systems. Not used in the Model 280 tone remote.
JP3 4-wire RX
Termination (2)
This jumper is used in the Model 284 to select a high or low impedance
termination to Line 2. In multiple remote systems, all the remotes should
be in the “B” position (6000 Ω), except for the farthest remote that
terminates the line in 600 Ω. JP3 should always be in position “B” for 2-
wire systems. Not used in the Model 280 tone remote.
JP4 4-wire RX
Termination (1)
Selects whether the unit provides a high or low impedance termination to
Line 1. The default position is “A”, which terminates the line at 600 Ω. In
multiple remote systems, all the remotes should be in the “B” position
(6000 Ω), except for the farthest remote that terminates the line in 600 Ω.
JP4 is always in position “B” for 2-wire.
JP5 There is no JP5 in the Digital Tone Remotes.
JP6 External Audio
Enable
Enables or Disables the external mic input. Default position is disabled,
position “A”.
JP7 2-wire RX
Termination (4)
This jumper is used in the Model 284 to select a high or low impedance
termination to Line 4. In multiple remote systems, all the remotes should
be in the “B” position (6000 Ω), except for the farthest remote that
terminates the line in 600 Ω. JP7 should always be in position “B” for 4-
wire systems. Not used in the Model 280 tone remote.
JP8 4-wire RX
Termination (3)
This jumper is used in the Model 284 to select a high or low impedance
termination to Line 3. In multiple remote systems, all the remotes should
be in the “B” position (6000 Ω), except for the farthest remote that
terminates the line in 600 Ω. JP8 should always be in position “B” for 2-
wire systems. Not used in the Model 280 tone remote.
JP9 4-wire RX
Termination (4)
This jumper is used in the Model 284 to select a high or low impedance
termination to Line 4. In multiple remote systems, all the remotes should
be in the “B” position (6000 Ω), except for the farthest remote that
terminates the line in 600 Ω. JP9 should always be in position “B” for 2-
wire systems. Not used in the Model 280 tone remote.
JP10 2-wire RX
Termination (3)
This jumper is used in the Model 284 to select a high or low impedance
termination to Line 3. In multiple remote systems, all the remotes should
be in the “B” position (6000 Ω), except for the farthest remote that
terminates the line in 600 Ω. JP10 should always be in position “B” for 4-
wire systems. Not used in the Model 280 tone remote.