SAM64 User Manual v1.6
9
Hardware Considerations
The SAM64 is built in a 1U 19” enclosure. It is
intended to be permanently installed in a standard
19” equipment rack. There are ventilation grilles in
the top, bottom and both sides of the enclosure, and
care must be taken to ensure that these are not
blocked by cables or other equipment when the unit is
installed. Do not install any other items of equipment
immediately above or below to the SAM64; the use
of 1U blanking panels is recommended.
Power Supply Considerations
The SAM64 is fitted with two separate, auto-ranging
switch-mode power supplies (PSUs). The operating
voltage range is 100 to 240 V AC, 50/60 Hz. The
internal power rails are diode-paralleled to the two
supplies, and the unit will operate normally if only
one PSU is powered or functional. For maximum
protection when using both PSUs, the two AC inlet
cables should be connected to mains circuits which
are as independent of each other as possible.
If redundant operation is not required, only one AC
supply cable need be connected; either AC inlet may
be used.
Fuses And Ratings
Each of the SAM64’s PSUs has an internal resettable
fuse for PSU protection. These fuses are not
accessible to the user. The unit should be powered
from a mains supply (supplies) fitted with an external
HRC-type fuse (High Inrush Current) rated at 1 A.
Unit Connections
SDI Inputs
The SAM64 can simultaneously de-embed the
16 audio channels in each of four separate SDI
video signals. Four BNC sockets are provided at
the rear panel for connecting the SDI inputs. The
characteristic impedance is 75
Ω
. The SAM64 is
compatible with all SDI formats up to 3G (2.9 Gbps)
and auto-detects between them. See the
Technical
Specifications
on page 16 for full list of compatible
formats.
Each SDI input has an active “loopthrough” output,
to simplify the connection of further equipment. The
outputs are fully buffered from the inputs and are re-
clocked. The SDI bitstream is otherwise unaltered.
Note:
recomendation is that cable lengths be 3 m in
length or less.
AES3 Outputs
The 64 audio channels de-embedded from the four
SDI inputs are available as 32 AES3 digital audio
outputs on the rear panel 37-way female Dsub
connector. The outputs are unbalanced (AES3-
id), but are compliant with AES3-1992 in all other
respects. The table below gives the pinout:
PIN
OUTPUT
SDI
SOURCE
AUDIO
CHANNELS
1
AES 1
SDI 1
Chs 1 & 2
2
AES 2
Chs 3 & 4
3
AES 5
Chs 9 & 10
4
AES 6
Chs 11 & 12
5
AES 9
SDI 2
Chs 1 & 2
6
AES10
Chs 3 & 4
7
AES 13
Chs 9 & 10
8
AES 14
Chs 11 & 12
9
AES 17
SDI 3
Chs 1 & 2
10
AES 18
Chs 3 & 4
11
AES 21
Chs 9 & 10
12
AES 22
Chs 11 & 12
13
AES 25
SDI 4
Chs 1 & 2
14
AES 26
Chs 3 & 4
15
AES 29
Chs 9 & 10
16
AES 30
Chs 11 & 12
17
n/c
18
n/c
19
GND
20
AES 3
SDI 1
Chs 5 & 6
21
AES 4
Chs 7 & 8
22
AES 7
Chs 13 & 14
23
AES 8
Chs 15 & 16
24
AES 11
SDI 2
Chs 5 & 6
25
AES 12
Chs 7 & 8
26
AES 15
Chs 13 & 14
27
AES 16
Chs 15 & 16
28
AES 19
SDI 3
Chs 5 & 6
29
AES 20
Chs 7 & 8
30
AES 23
Chs 13 & 14
31
AES 24
Chs 15 & 16
32
AES 27
SDI 4
Chs 5 & 6
33
AES 28
Chs 7 & 8
34
AES 31
Chs 13 & 14
35
AES 32
Chs 15 & 16
36
n/c
37
GND
Bel Digital Audio Limited
Installation
