Bosch DCN Next Generation Installation & User's Instructions page 189

DCN Next Generation | Installation and User Instructions | Flush-mounted Devices
27.3.2 Auto standby function
Use the X11 solder spot to enable or disable the auto
standby function of the channel selector.
table 27.2: Solder spot X11 (* = default)
Solder spot
Not soldered*
Soldered
Note
When you use the channel selector to record
audio, you must close the X11 solder spot.
The channel selector measures the impedance between
pin 1 and pin 2 of the headphones plug (see section
27.5.2). When this impedance is less than 1 kΩ, the
channel selector identifies that the headphones are
present.
Bosch Security Systems | 2007-02 | 9922 141 70525
Function
The auto standby function is
enabled. When the headphones
are disconnected, the channel
selector is disabled.
The auto standby function is
disabled. When the headphones
are disconnected, the channel
selector remains enabled.
27.3.3 Volume increment/decrement
With the X12 solder spot, you can enable or disable the
volume increment/decrement function of the channel
selector.
table 27.3: Solder spot X12 (* = default)
Solder spot Function
Not soldered* The volume increment/
decrement function is enabled.
When the volume up (down)
button is pushed for longer than
0.25 seconds, the volume level is
increased (decreased) with 12
dB per second.
Soldered The volume increment/
decrement function is disabled.
When the volume up (down)
button is pushed, the volume
level increases (decreases) with
one step of 1 dB.
en | 189