Specifications
8
HY-03 User Handbook
CONFIGURATION & CONTROLS
CONFIGURATION & CONTROLS
2
Adjusting the Microphone Gain Level
The Mic Level Preset Pot controls the level of the input signal when the input signal mode
is set to Mic. The input signal level in Line mode is factory set and is not aected by this
control. The Mic Input will accept 200 ohm microphone level signals and is balanced/
oating with a maximum gain of 74dB. Use a jeweller’s screwdriver to adjust the gain
between 74dB and 40dB.
Mic/Line Input Select Switch
This push-button switch sets the input signal mode :
Switch depressed (down) - Mic input mode selected
Switch not depressed (up) - Line input mode selected
Remote Mode Select Switch
This switch determines the operation of the remote line connect switch, if connected:
Switch depressed (down) - Permanent (latching) mode selected
Switch not depressed (up) - Momentary mode selected
Conguration Settings Switches
These switches are used to congure the HY-03 in the modes that you want it to operate.
A label on the top panel of the unit shows the orientation of the switches :
Figure 2-3 : Conguration Settings Switches
Dial Tone Disconnect Enable - SW1
When enabled (ON), the HY-03 will automatically disconnect from the telephone line when
an appropriate dial tone is detected. See “Using the Dial Tone Disconnect option” later in
this section.
Note : This feature is an optional extra and requires an additional plug-in PCB to be tted.
Please contact Sonifex for further information and pricing on the HY-03DTD board.
K-Break Disconnect Enable - SW2 and JP4
When SW2 is enabled (ON) (and for serial number HY-03 units after HY000323 when JP4
is on), the HY-03 will automatically disconnect from the telephone line by detecting the
K-break. The K-break signal only operates in the UK and is available on nearly all electro-
mechanical exchange systems. The signal consists of a momentary disconnection or
signicant reduction in current (to below 1mA) lasting from about 1ms to 100ms (modern
HY-03 SETTINGS
DIAL TONE DISCONNECT
ENABLE
RING DETECTOR ENABLE
INPUT / OUTPUT MIX ENABLE
4
4
2
2
1
1
3
3
ON
OFF
ON
ON
ON
ON
K-BREAK DISCONNECT
ENABLE