© 2004 Wohler Technologies Inc. ALL rights reserved
12
AMP2-SDA/AVU
and
AMP2-SDA/APP
User Manual P/N
821576
Rev-
A
Please refer to
Figure-2b
on the facing page to familiarize yourself with the rear panel features of the
AMP2-SDA/AVU
and
AMP2-SDA/
APP
unit. The following sections describe these features and are referenced, by letter, to
Figure-2b
.
Rear Panel Features
Section 2:
Operation
(Continued)
Terminated
Unterminated
3
1
4
3
2
2
1
4
ERROR
TERM 1
x
TERM 2
AES Input Termination
TERM 2
TERM 1
x
ERROR
1
2 3 4
Error/Fault Type = Red LED
AES Error Indication Settings
ERROR
TERM 1
TERM 2
x
Reception
Error (Only)
TERM 2
Reception and
Data Error
1
4
3
2
x
TERM 1
ERROR
A
B
C
D
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 3
, page
8
) will glow GREEN to indicate operating voltages are present.
AES Output (From SDI) Connector
The
AES/EBU OUT
connector outputs an
AES
signal as converted from the
SDI input
(
Item F
, page
14
) and as selected
by the
SDI Subgroup Select Switch
(
Item 5
, page
8
). This connector is configured for an unbalanced, 75
Ω
connection.
AES Termination and Error Type DIP Switch
This 4-position DIP switch is used to set the termination characteristics for the
AES input
(
Item D
) and select the
AES
signal error indication type.
AES Input Termination:
In the event that the
AES
input signal is fed to downstream equipment, then DIP switch Section
S2
must be placed in the
Unterminated
(
UP
) position. If there is
no
downstream equipment connected, then Section
S2
must be placed in the
Terminated
(
DOWN
) position. See below for diagram of termination settings.
Note:
Sections
S3
and
S4
are not used.
AES Error Indication Type:
There are two DIP switch selectable modes of
AES
error detection that will create a RED error indication in the
AES Signal
Status LED
on the front panel (
Item 11
, page
10
);
•
Reception Errors:
errors in reception of data or no data stream at all (
S1
=
DOWN
)
•
Reception and Data Errors:
errors in reception
and
data errors identified by the sending device (possibly
invalid) (
S1
=
UP
).
See below for diagram of
AES
error DIP switch settings.
Note:
Sections
S3
(
x
) and
S4
(
TERM 2
) are not used.
AES Input Connector
This
AES/EBU IN
input (on female BNC connector) is meant to receive standard
AES/EBU
signals and is configured for
an unbalanced, 75
Ω
connection. Note that the unit will monitor this
input
only
when the
Analog/Digital Source Select
Switch
(
Item 4
, page
8
) is set to
DIGITAL
and
the
AES/SDI Source Select Switch
(
Item 6
, page
8
) is set to
AES
.
