Rane HAL1x Installation Guide - Page 54

Toggle, Command, Logic Inputs

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HAL SYSTEM INSTALL GUIDE NOTE: A DR3 requires a two-gang standard switchbox for installation into a wall. DR4 The DR4 provides a variety of inputs and outputs: 8 Logic Inputs, 8 Logic Outputs, 8 Analog Control Inputs, and 6 IR Remote Inputs. Logic Inputs These inputs on the DR4 are similar to the Logic In ports on a HAL. You can configure each of the eight input ports in one of three ways: l Toggle: The Toggle configuration allows you to control the state of a toggle control in the Control palette of the Processing Workspace. You can configure each port type to be either Momentary or Latching, which tells HAL how to process the port's input signal. For a complete description of Momentary and Latching toggle inputs, see "Momentary and Latching Toggle Configuration" on page 68. l Command: This option allows the Logic In port to trigger a Command control in the Control palette of the Processing Workspace, which you can link to one or more Command controls such as a Command preset or a linkable button in a processing block property dialog. When nothing is connected to a Logic In port, the hardware internally pulls the port to logic high (5 V). To trigger the command, a hardware device connected to the Logic In port must pull the port voltage lower than the logic low threshold, which is specified in the Rane data sheet for the DR4. One way to do this is to connect a physical normally open momentary push button switch to the port. When the end user pushes the button, the switch contacts close, pulling the Logic In port low, which causes the Command to trigger. When the user releases the button, the port signal returns high and the port is ready for the next command. The following diagram shows a momentary switch wired to a DR4 Logic In port. 48

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NOTE
:
A DR3 requires a two-gang standard switchbox for installation into a wall.
DR4
The DR4 provides a variety of inputs and outputs: 8 Logic Inputs, 8 Logic Outputs, 8 Analog Control Inputs, and
6 IR Remote Inputs.
Logic Inputs
These inputs on the DR4 are similar to the Logic In ports on a HAL. You can configure each of the eight
input ports in one of three ways:
l
Toggle:
The Toggle configuration allows you to control the state ofa toggle control in the Control palette of
the Processing Workspace. You can configure each port type to be either Momentary or Latching,
which tells HAL how to process the port’s input signal. For a complete description of Momentary and
Latching toggle inputs, see "Momentary and Latching Toggle Configuration" on page 68.
l
Command:
This option allows the Logic In port to trigger a Command control in the Control palette of the Proc-
essing Workspace, which you can link to one or more Command controls such as a Command preset or
a linkable button in a processing block property dialog.
When nothing is connected to a Logic In port, the hardware internally pulls the port to logic high (5
V). To trigger the command, a hardware device connected to the Logic In port must pull the port volt-
age lower than the logic low threshold, which is specified in the Rane data sheet for the DR4. One
way to do this is to connect a physical normally open momentary push button switch to the port.
When the end user pushes the button, the switch contacts close, pulling the Logic In port low, which
causes the Command to trigger. When the user releases the button, the port signal returns high and the
port is ready for the next command.
The following diagram shows a momentary switch wired to a DR4 Logic In port.
HAL SYSTEM INSTALL GUIDE
48