© 2004 Wohler Technologies Inc. ALL rights reserved
12
AMP2-VSD and AMP2-VSDA
User Manual P/N
821581
Rev-
B
G
E
D
A
B
C
F
Please refer to
Figure-2b
on the facing page to familiarize yourself with the rear panel features of the
AMP2-VSD
and
AMP2-
VSDA
unit. The following sections describe these features and are referenced, by letter, to
Figure-2b
.
Rear Panel Features
Section 2:
Operation
(Continued)
Power Connector
Attach a standard IEC-320 power cord between this connector and mains power (100 - 250VAC, 50/60 Hz). The front panel
Power LED
(
Item 5
, page
8
) will glow GREEN to indicate operating voltages are present.
AES Input Unbalanced BNC Connectors (AES IN 1 and AES IN 2)
These two female BNC input connectors (
AES IN 1
and
AES IN 2
) are meant to receive standard
AES
signals and are
configured for unbalanced, 75
Ω
connections. Note that the unit will monitor these inputs
only
when the
Analog/Digital
Source Select Switch
(
Item 7
, page
8
) is set to
DIGITAL
and the
AES/SDI Digital Source Select Switch
(
Item 13
,
page
10
) is set to
AES
.
Note:
Do
not
input signals simultaneously to the BNC and XLR
AES
input connectors of the same channel (i.e. BNC
connector
AES IN 1
and XLR connector
AES IN 1
)
.
AES Output (From SDI Input) Connectors (1 and 2)
These two
"AES OUT-FROM SDI"
BNC connectors output an
AES
digital signal as converted from the
SDI IN
input
connector (
Item D
) and function regardless of any monitor selection settings. The
left
AES OUT-FROM-SDI
connector
(next to
AES IN 1
) outputs a signal converted from
SDI sub-group 1
(channels
1/2
) and the
right
AES OUT-FROM-SDI
connector (next to
AES IN 2
) outputs a signal converted from
SDI sub-group 2
(channels
3/4
).
SDI Input and Output Connectors
The
SDI IN
input connector is meant to receive a standard
SDI
signal. This female BNC connector is configured for an
unbalanced, 75
Ω
connection. The unit monitors sub-group 1 (channels
1/2
) and sub-group 2 (channels
3/4
) of
SDI Group
ID #1
. Note that the unit will monitor the
SDI
input
only
when the
Analog/Digital Source Select Switch
(
Item 7
, page
8
)
is set to
DIGITAL
, and the
AES/SDI Digital Source Select Switch
(
Item 13
, page
10
) is set to
SDI
.
The
SDI OUT
loop-through connector outputs a reclocked (regenerated) copy of the signal entering the
SDI IN
input
connector. This female BNC connector is configured for an unbalanced, 75
Ω
connection.
Level Meter DIP Switch
This DIP switch sets the
Line Level Calibration
,
Reference Level
, and
PPM/VU Display Mode
for the level meter LED
bargraph displays on the front panel. See page
23
for for setting information.
Selected Analog Output Connectors
These two 3-pin male XLR connectors are
analog
outputs of the selected source(s) as assigned to the left and right
speakers. The left connector outputs the left channel (
Channel A
) and the right outputs the right channel (
Channel B
).
Both connectors are configured for low impedance connections and the output signals are not affected by the volume/
balance controls or headphone mute. For XLR pinout information see the diagram below.
AES Input Balanced XLR Connectors (AES IN 1 and AES IN 2)
These two 3-pin female XLR input connectors (
AES IN 1
and
AES IN 2
) are meant to receive standard
AES
signals and
are configured for balanced, 110
Ω
connections. Note that the unit will monitor these inputs
only
when the
Analog/Digital
Source Select Switch
(
Item 7
, page
8
) is set to
DIGITAL
, and the
AES/SDI Digital Source Select Switch
(
Item 13
,
page
10
) is set to
AES
. For XLR pinout information see the diagram under
Selected Analog Output Connectors
(
Item
F
).
Note:
Do
not
input signals simultaneously to the XLR and BNC
AES
input connectors of the same channel (i.e. XLR
connector
AES IN 1
and BNC connector
AES IN 1
)
.
High (+)
Low (-)
Gnd
(Shield)
Pin-1
Pin-2
Pin-3
Pin-1
Gnd
(Shield)
Pin-2
High (+)
Pin-3
Low (-)
Female XLR Pinout
Male XLR Pinout
