NRS70 Series
SECTION 3
NRS70OPS
070803 Version 1 Issue 2
www.snellwilcox.com
3.3
AES A & B (25 way D Rear Panel)
All balanced audio connections are made via the 25
way D Connector.
AUDIO
25 Way D Connection Details
25 Way D Connector
Pin Number
Description
Ribbon Cable
Strand Number
Standard Pin Assignment
1
1
CHASSIS
14
AES IN A Gnd
2
GND1
2
AES IN A +
3
1+
15
AES IN A -
4
1-
3
AES IN B +
5
2+
16
AES IN B -
6
2-
4
AES IN B Gnd
7
GND2
17
Unused
8
GND3
5
Unused
9
3+
18
Unused
10
3-
6
Unused
11
4+
19
Unused
12
4-
7
Unused
13
GND4 (CH)
20
Unused
14
GND5
8
Unused
15
5+
21
Unused
16
5-
9
AES OUT A +
17
6+
22
AES OUT A -
18
6-
10
AES OUT A Gnd
19
GND6
23
AES OUT B Gnd
20
GND7
11
AES OUT B +
21
7+
24
AES OUT B -
22
7-
12
Unused
23
8+
25
Unused
24
8-
Reference Inputs
525 and 625
When suitable signals are connected to these
inputs, the video output of the unit will be fully
synchronised to the relevant signal source when the
genlock function is selected. There are separate
inputs for 525 and 625 line standard signals. If no
signal is present the unit will automatically revert to
internal free-running operation.
BNC loop-through connectors are provided and the
signal may be black burst or composite video at
standard level.
625
REFERENCE
525
