Behringer SRC2496 Manual - Page 5

Phones, Analog In, Analog Out, Source, Level Meter, Lock Led, Error, Aes/ebu, S/pdif, Optical,

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5 ULTRAMATCH PRO SRC2496 User Manual 2.1.1 Monitor and input sections (4) (5) (7) (9) (11) (13) (15) (12) The EMPH LED shows you whether or not the input signal includes an emphasis marker. "Emphasis" is a high-frequency boost function that (16) is appli(e1d9)duri(n2g1)the(2d3i)git(a2l5r)ecording but is undone during playback. When the LED lights up, the signal was emphasis-processed during recording. You should always make sure that the EMPH LEDs in the input and output sections read the same status. (6) (8) Fig. 2.2: Input section control elements (10) (12) (14) The COPY LED (= copyright) lights up when the input signal was supplied from a copy-protected data carrier. (17) The OR(1I8G) LED(20(=) or(i2g2i)nal)(2in4f)orm(2s6y)ou(t2h7a)t th(e28a)udio signal received is an original signal, i.e. that it can be copied (see chapter 2.1.3, section (28)). (4) Use the GAIN control to adapt the signal level perfectly to the circuitry of your ULTRAMATCH PRO. The level should be as high as possible, but the 0 dB LED should only light up occasionally or never at all to avoid distortion. (5) The PHONES control governs the headphone volume. You can monitor either the analog output or input by setting the SOURCE switch accordingly. The analog output always provides the signal applied to the selected digital input, so this signal can be monitored with the headphones, too. ◊ When the ULTRAMATCH PRO operates as an A/D-D/A converter, the digital input signal is applied to the analog output only in DIG IN mode (see (20), (21)). (6) This is the stereo 1/4" TRS connector for your headphones. (7) The ANALOG IN and/or ANALOG OUT LEDs indicate which signal (input or output) is being displayed by the level meter. (13) The AES/EBU LED lights up when an AES/EBU signal has been applied at the active input connector. The same holds true for the S/PDIF LED, i.e. when a consumer-format signal has been applied. If the unit is set to A/D and D/A converter mode, the S/PDIF LED lights up even when no digital signal is present. This is due to the circuitry used and does not indicate a malfunction of the unit. Further information on the formats AES/EBU and S/PDIF can be found in chapter 4.2. (14) Use the SOURCE switch to select the active input. Only one digital input can be activated at a time. However, in A/D-D/A converter mode, you can use one digital input and the analog inputs simultaneously (parallel A/D and D/A conversion). For further information please refer to chapter 3.1.3. (15) The LEDs XLR, RCA and OPTICAL indicate the input activated by the user. (8) The SOURCE switch routes the analog input or output signal to the 2.1.2 Mode section level meter. (4) (5) (7) (9) (11) (13) (15) (16) (19) (21) (23) (25) (9) LEVEL METER. The signal shown here can always be monitored with the headphones. (9) (11) (13) (15) (16) (19) (21) (23) (25) (6) (8) (10) (12) (14) (17) (18) (20) (22) (24) (26) (27) (28) Fig. 2.4: Mode section (10) (12) (14) (17) Fig. 2.3: Input section control elements (18) (20) (22) (24) (26) (27) (28) (16) The two LEDs SAMPLE RATE CONV and A/D & D/A CONV inform you about the operating mode of your SRC2496, i.e. sampling rate converter or A/D-D/A converter. (10) This LED array displays the sampling rate of the digital input signal. One LED lights up constantly when the sampling rate is kept accurately or does not deviate from the nominal value by more than approx. 2 kHz. Otherwise, the LED for the next value starts flashing. (4) (5) (7) (9) (11) (13) (15) (16) (11) The LOCK LED lights up when a valid digital signal-to which the ULTRAMATCH PRO can be synchronized-is applied to the active input. When digital input signals are being processed, this LED should be on all the time, showing the presence of a stable input signal. (17) Use the MODE switch to switch over between these two operating modes. 2.1.3 Output section (19) (21) (23) (25) The ERROR LED warns you of erroneous (or the absence of any) input signals. It displays Error" and v"aCroinofuisdee(n6rrcoe)rEmrrood(r8.e"sT),hsuecshigansa"lUisntlhocekn,"c(h"1Pe0ac)krietdy(1Ea2rs)rtoor(,1w"4"h)Beit-hPeh(r1ao7se)r not (18) (20) (22) (24) (26) (27) (28) it is an audio signal. Any detected error makes the SRC2496 mute all of its Fig. 2.5: Output section outputs to protect down-stream audio equipment. As long as the ERROR LED is lit, the ULTRAMATCH PRO cannot process any input signals.

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5
ULTRAMATCH PRO SRC2496 User Manual
2.1.1
Monitor and input sections
(4)
(5)
(7)
(9)
(8)
(6)
Fig. 2.2: Input section control elements
(4)
Use the
GAIN
control to adapt the signal level perfectly to the circuitry of
your ULTRAMATCH PRO. The level should be as high as possible, but the 0 dB
LED should only light up occasionally or never at all to avoid distortion.
(5)
The
PHONES
control governs the headphone volume. You can monitor
either the analog output or input by setting the SOURCE switch accordingly.
The analog output always provides the signal applied to the selected digital
input, so this signal can be monitored with the headphones, too.
◊
When the ULTRAMATCH PRO operates as an A/D-D/A converter,
the digital input signal is applied to the analog output only in DIG IN
mode (see
(20)
,
(21)
).
(6)
This is the stereo ±" TRS connector for your headphones.
(7)
The
ANALOG IN
and/or
ANALOG OUT
LEDs indicate which signal
(input or output) is being displayed by the level meter.
(8)
The
SOURCE
switch routes the analog input or output signal to the
level meter.
(9)
LEVEL METER
. The signal shown here can always be monitored with
the headphones.
(11)
(13)
(15)
(10)
(12)
(14)
Fig. 2.3: Input section control elements
(10)
This
LED
array displays the sampling rate of the digital input signal. One LED
lights up constantly when the sampling rate is kept accurately or does not
deviate from the nominal value by more than approx. 2 kHz. Otherwise,
the LED for the next value starts flashing.
(11)
The
LOCK LED
lights up when a valid digital signal—to which the
ULTRAMATCH PRO can be synchronized—is applied to the active input.
When digital input signals are being processed, this LED should be on all the
time, showing the presence of a stable input signal.
The
ERROR
LED warns you of erroneous (or the absence of any) input signals.
It displays various error modes, such as “Unlock,” “Parity Error,” “Bi-Phase
Error” and “Confidence Error.” The signal is then checked as to whether or not
it is an audio signal. Any detected error makes the SRC2496 mute all of its
outputs to protect down-stream audio equipment. As long as the ERROR LED
is lit, the ULTRAMATCH PRO cannot process any input signals.
(12)
The
EMPH
LED shows you whether or not the input signal includes an
emphasis marker. “Emphasis” is a high-frequency boost function that
is applied during the digital recording but is undone during playback.
When the LED lights up, the signal was emphasis-processed during
recording. You should always make sure that the EMPH LEDs in the input and
output sections read the same status.
The
COPY
LED (= copyright) lights up when the input signal was supplied
from a copy-protected data carrier.
The
ORIG
LED (= original) informs you that the audio signal received is an
original signal, i.e. that it can be copied (see chapter 2.1.3, section
(28)
).
(13)
The
AES/EBU
LED lights up when an AES/EBU signal has been applied at the
active input connector.
The same holds true for the
S/PDIF
LED, i.e. when a consumer-format signal
has been applied.
If the unit is set to A/D and D/A converter mode, the S/PDIF LED lights up
even when no digital signal is present. This is due to the circuitry used and
does not indicate a malfunction of the unit. Further information on the
formats AES/EBU and S/PDIF can be found in chapter 4.2.
(14)
Use the
SOURCE
switch to select the active input. Only one digital input can
be activated at a time. However, in A/D-D/A converter mode, you can use
one digital input and the analog inputs simultaneously (parallel A/D and D/A
conversion). For further information please refer to chapter 3.1.3.
(15)
The LEDs
XLR
,
RCA
and
OPTICAL
indicate the input activated by the user.
2.1.2
Mode section
(16)
(17)
Fig. 2.4: Mode section
(16)
The two LEDs
SAMPLE RATE CONV
and
A/D & D/A CONV
inform you
about the operating mode of your SRC2496, i.e. sampling rate converter or
A/D-D/A converter.
(17)
Use the
MODE
switch to switch over between these two operating modes.
2.1.3
Output section
(19)
(18)
(21)
(20)
(23)
(25)
(22)
(24)
(26)
(27)
(28)
Fig. 2.5: Output section