Partyline: What are the functions of the internal KB-702 controls / dip swtiches?
Question: I'm an integrator installing an Encore party-line system in a small live theater venue. I have several KB-702 wall panels that we are in the process of wiring into the makeup, green room and manager's office. We noticed that the KBs have some internal controls and dip switches, what are the functions of these controls / switches?
Answer:
1.) Call Alert Tone Level Control: This control adjusts the volume of the call alert tone sound. This is normally adjusted when the system is set up and there should be no need to adjust it in normal operation. This feature can be disabled by turning the control fully counterclockwise.
2.) Option Switches: Three option switches are provided. They should be configured when the system is set up, but are not changed in normal operation. Note the on position of each switch is toward the circuit board and the off position is toward the front panel. The default position of the switches is in the off position. The function of each switch is as follows:
Dip Switch 1. SINGLE CHANNEL: In some installations, the KB-702 is intended to be used only with one intercom channel. Setting the single channel switch to the on position will connect the KB-702 to the one intercom channel regardless of the position of the front panel channel selector. In two-channel installations, this switch must be set to the off position.
Dip Switch 2. LONG LINE: If a long cable run is unavoidable and approaches 700 ft. (213.5 m) or more, set the long line option switch to the on position. The ability to set a side tone null depends upon properly setting this switch.
Dip Switch 3. LATCH DISABLE: Setting the latch disable switch to the on position will disable the latching function of the talk button. In this mode, the talk button must be continuously pressed while the operator is talking.
Answer:
1.) Call Alert Tone Level Control: This control adjusts the volume of the call alert tone sound. This is normally adjusted when the system is set up and there should be no need to adjust it in normal operation. This feature can be disabled by turning the control fully counterclockwise.
2.) Option Switches: Three option switches are provided. They should be configured when the system is set up, but are not changed in normal operation. Note the on position of each switch is toward the circuit board and the off position is toward the front panel. The default position of the switches is in the off position. The function of each switch is as follows:
Dip Switch 1. SINGLE CHANNEL: In some installations, the KB-702 is intended to be used only with one intercom channel. Setting the single channel switch to the on position will connect the KB-702 to the one intercom channel regardless of the position of the front panel channel selector. In two-channel installations, this switch must be set to the off position.
Dip Switch 2. LONG LINE: If a long cable run is unavoidable and approaches 700 ft. (213.5 m) or more, set the long line option switch to the on position. The ability to set a side tone null depends upon properly setting this switch.
Dip Switch 3. LATCH DISABLE: Setting the latch disable switch to the on position will disable the latching function of the talk button. In this mode, the talk button must be continuously pressed while the operator is talking.
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