12
Connecting the Control Bus
If it is desired to control a Cambridge Audio Azur amplifier by the 650T’s
Alarm or Sleep timers, connect the two units via the orange Control Bus
sockets using the supplied orange RCA/phono lead as shown below:
Custom installation (C.I.) use
The 650T features a Control Bus input/output that allow un-modulated
remote control commands (positive logic, TTL level) to be received
electrically by the unit and looped to another unit if desired. These control
commands are typically generated by custom installation (multi-room)
systems or remote IR receiver systems. The Control Bus sockets are
colour-coded orange.
An IR Emitter Input is also provided that allows modulated IR remote
control commands to be received electrically by the unit. Commands on
this input operate the unit only and are not looped out demodulated on
the Control Bus Output.
An RS232 port is also featured which allows the 650T to be controlled by
C.I. systems.
In addition the unit features direct IR/Control codes as well as toggle
codes for many of its features to simplify programming custom installation
systems. Special direct commands can be accessed on the supplied
remote control for teaching into C.I. systems as follows:
Specific power on/off commands – press and hold the Standby button.
The remote first generates it's usual amp and tuner standby (toggle)
commands (both are sent). Keep the button held down, after 12 seconds
an Amp On command will be generated, then if the button is kept held
down after a further 12 seconds an Amp off command is generated, then
separated by 12 second pauses, Tuner On, and finally Tuner Off.
Specific band selection commands – Press and hold the Band key. The
usual band toggle command is first, then the DAB/SIRIUS Mode
command, then the FM Mode command, then finally followed by the AM
Mode command is generated.
Specific NCT commands – Press and hold the NCT button. The usual NCT
toggle command is first, then the ‘Warm’ command, the ‘Dynamic’
command and then the ‘Off’ command.
Specific Mute On/Off commands – press and hold the Mute key. The
usual mute toggle command is first, followed by the Mute On command,
and then the Mute Off command.
A full code table for this product is available on the Cambridge Audio
website at www.cambridge-audio.com.
650T
650A
Technical specifications
Frequency Range FM (87.5–108MHz) Europe
FM (88–108MHz) US
AM (531–1620kHz) Europe
AM (530–1710kHz) US
DAB Band 3 (175MHz to 240MHz)
DAB L Band (1453MHz to 1491MHz)
Aerial Inputs 50 Ω F-Type (DAB)
75 Ω (FM)
AM Loop
Sensitivity -25dBm typical
Signal to Noise 105dB typical (DAB)
60dB typical (FM)
47dB typical (AM)
DAB codec types supported DAB (MP2) / DAB+ (ACC+)
Frequency Response 20Hz-20kHz ±0.3dB (NCT at Flat, DAB)
20Hz-18kHz ±1dB (NCT at Flat, FM)
Distortion <0.005%, @ 1kHz 2vrms o/p (DAB)
<0.3%, @ 1kHz, 50kHz deviation (FM)
<0.9%, @ 1kHz (AM)
S/P DIF output sample rate 48kHz
Input voltage 220 - 230V AC ~ 50/60Hz (Europe)
115V AC ~ 50/60Hz (US)
Maximum Power Consumption 15W
Standby Power Consumption <1W
Dimensions – H x W x D 70 x 430 x 305mm (2.75 x 17 x 12”)
Weight 4.10kg (9 lbs)
Operating instructions (continued)
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