XI AUDIO HP505, Mini Instruction Manual, Page: 1 / 12

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HP505
HP505
MINI
INSTRUCTION
MANUAL
XI Audio – HP505
Headphone
PANEL
Stereo Line Input Connector
This 3.5mm jack socket is located on the right side
of the front panel above the volume control. The
input is balanced up, given 12dB of gain and
routed to the rear panel output.
The connections are as follows:
Tip: Left Ring: Right Sleeve: Screen
Headphone Connector 6.35mm
This .1/4” (6.35mm) jack socket is located on the
left of the front panel above the volume control. It
is connected to the headphone amplifier in
parallel with the 3.5mm headphone jack socket.
The maximum output is +18dBu.
The connections are as follows:
Tip: Headphone Left Ring: Headphone Right
Sleeve: Ground
Headphone Connector 3.5mm
This 3.5mm jack socket is located at the centre of
the front panel above the volume control. It is
connected to the headphone amplifier in parallel
with the 6.35mm headphone jack socket. The
maximum output is +18dBu.
The connections are as follows:
Tip: Headphone Left
Ring: Headphone Right
Sleeve: Ground
Headphone Volume
This is the volume control of the headphone
outputs with a range of +12dB to -60dB using a
logarithmic potentiometer.
Talkback Button
This button, when pressed briefly (less than 350ms)
activates and latches pin 3 of the GPO RJ45.
When pressed for more than 350ms the button
and GPO output act momentarily and deactivate
when released. The button illumination responds
to pin 3 of the GPI RJ45.
Mute Button
This button, when pressed briefly (less than 350ms)
activates and latches pin 5 of the GPO RJ45.
When pressed for more than 350ms the button
and GPO output act momentarily and deactivate
whenreleased. The button illumination responds
to pin 5 of the GPI RJ45.
Mic Button
This button, when pressed briefly (less than 350ms)
activates and latches on the GPO on pin 1 of the
RJ45. Pin 2 provides an inverted output of pin 1.
When pressed for more than 350ms the button
and GPO output act momentarily and deactivate
when released. The button illumination responds
to pins 1 and 2 of the GPI RJ45 All button illumina-
tion colors can be changed using the 4 pole DIP
switch on the back panel. There are 8 color
choices in total: off, red, green, blue, cyan,
magenta, yellow and white.
DIP Switch
DIP Switch 1: LED current bit 1 (see table)
DIP Switch 2: LED current bit 0 (see table)
DIP Switch 3: Enables/disables LED color
programming mode (see table)
DIP Switch 4: Determines which switch state
programming mode is active on (DIP off = off
color, DIP on = on color) (see table)
LED Color Programming (on start-up)
When DIP3 is enabled on power up, the unit will
enter programming mode. Each button illumi-
nates in the color designated for its off or on state
(controlled by DIP4). The user can press each
button to cycle through 8 color options to set the
desired color. Setting DIP3 switch back to off
stores the colors to EEPROM and enters normal run
mode. See programming mode flowchart for
more information.