Using the Direct Outputs, Using Outputs a Through J

USING THE DIRECT OUTPUTS

The DIRECT OUTPUTS provide an unbalanced line- level signal from each of the 8 Input channels. This signal comes from the output of the preamplifier stage on each input channel, prior to the A/D converter and subsequent digital signal processing.

Use the DIRECT OUTPUTS to connect a continuous music source (e.g., satellite feed, prerecorded background music, or multi-disc CD player). This may connect to a telephone system music-on-hold input. It may provide a feed to a multi-track recorder (for recording), or a mixing console (for additional zone coverage).

USING OUTPUTS A THROUGH J

These outputs provide a balanced line-level signal. Connect these outputs to the inputs of a power amp.

USING THE RECORD OUTPUT

The A and B output signals are provided at the RECORD output jacks, which are industry standard unbalanced RCA connectors. Connect these to the Tape Input jacks on a tape deck or other recording device to record the mix at the A and B outputs.

USING THE REMOTE CONTROLS

Connect one or up to nine remote controls to the REMOTE BUS connection. Each remote control has an 8-position DIP switch that must be set to a unique ID. When the DX810 is first turned on, it polls the REMOTE BUS and identifies the remote controls connected to it by each unique ID.

There are two remote control versions available:

DX-SW4 Selection Remote (4-Button/4-LED)

This remote device is designed to select functions such as preset selection, mute, and force-on/off. Each of the four buttons controls a single function and its associated LED displays the current state of the function.

Refer to Appendix C for a list of the predefined functions available for the Selection Remote Control. Refer to "Remotes" on page 21 for instructions on custom programming the DX-SW4.

DX-RVC Level Remote (2-Button/12-LED)

This remote device can control a level, preselected via the 8-position DIP switch, and display the selected level on the LED meter. The predefined functions include INPUT 1A-8J level, OUTPUT A through J, and Group 1-32 level. Note that the remote control indicates the gain setting of the channel, and not the signal level in real time.

Refer to Appendix D for a list of the predefined functions available for the Level Remote Control.

Connecting One or More Remote Controls

The remote control devices are connected to the DX810 using a 3-wire half-duplex interface with +24 VDC phantom power. The REMOTE BUS connection can provide power for up to nine remotes. Provision is made to connect local power to the remote controls if required in certain applications.

The maximum distance between the DX810 and the remotes depends on the type of cable selected and type of remote controls used. Generally, with 22 gauge wire (at 0.014 Ω/ft. and 34 pF/ft), one remote can be up to 3000 feet away. Five remotes can be up to 2500 feet away, and eight remotes can be up to 500 feet away. This is to prevent transmission losses from becoming a factor. (See the instructions with the remote control for more information).

USING THE LOGIC I/O

The DX810 has 10 programmable general-purpose logic inputs, 10 programmable general-purpose logic outputs, and one preconfigured logic output (System OK). The inputs are active low with internal pull-up resistors. The outputs are active low open- collectors with internal pull-up resistors. With the inputs or outputs unconnected or inactive, the logic voltage level is high (+5 V). The active state is defined as voltage low (0 V or ground).

DX810 – 11