AEM SM60 N300-001, Инструкция по установке и эксплуатации

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N300-001 and N300-002 Audio Controller
SM60 Installation and Operation Manual
May 26, 2012 Rev: 2.00 Page 1-2
ENG-FORM: 800-0100.DOTX
CONFIDENTIAL AND PROPRIETARY TO ANODYNE ELECTRONICS MANUFACTURING CORP.
The intercom audio will be live (Hot Mic) when the VOX potentiometer is set fully ccw (but not in the
detent position). In the fully cw position, the intercom will operate in PTT mode. In the detent position,
the VOX circuit will operate at a predetermined factory setting.
The sidetone from the selected transmitter is attenuated to be below the RX audio level and will follow the
front panel setting. This option is internally activated/deactivated via an internal switch.
The microphone input utilizes an automatic level control amplifier for maximum intelligibility without
distortion.
1.3.4 Performance/Function (N300-003 only)
The radio inputs are designed to provide a minimum output even when the respective volume control is
set to minimum. If the control is set fully counter-
clockwise into the ‘detent’ position
, the input is turned
off. The transceiver audio inputs are also controlled by the Auto RX circuit. This ensures the radio
selected at the left or right rotary switch will be audible regardless of the position of the associated receive
volume control. If the volume setting for the radio selected on the transmit selector switch is set higher
than the Auto RX level, the panel volume potentiometer setting will take precedence.
Selection of a transceiver for transmit microphone operation is achieved by rotating the respective rotary
switch to the appropriate position. The left switch selects the respective transceiver directly, while the
right switch becomes active only when the left switch is selected to the TRANSFER position. The left
switch is also protected from inadvertently being selected to the PA position by a mechanical stop. The
knob must be lifted and turned to select/deselect PA.
The MVOL momentary push button switch will mute all audio except the auto receive audio and direct
audio. It can also be activated from an external source (switch).
The SWAP key input is routed to one of four SWAP key outputs when one of the two rotary selector
switches is in either the VHF1, VHF2, FM2 or FM3 positions. These lines are fully floating so the SWAP
key signal can be defined by the customer. When the rotary selector switches are not in any of these four
positions, all SWAP key outputs are open circuit.
1.4 Specifications
1.4.1 Electrical Specifications
Power Supply Multiple switchers and linear regulators with
reverse and over voltage protection
Input Voltage 30.3 Vdc Maximum
(normal operating) 27.5 Vdc (nominal)
24.8 Vdc (minimum)
18.0 Vdc (emergency)
12.0 Vdc (starting, degraded performance)
(abnormal operation) 32.2 Vdc (maximum)
27.5 Vdc (nominal)
16.0 Vdc (minimum)