Polycom SoundStructure C16 Design Manual page 51
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Also See for SoundStructure C16:
- Design manual (712 pages) ,
- Hardware installation manual (66 pages) ,
- Application note (13 pages)
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device and continue for additional devices. This connection strategy, shown in the following figures,
simplifies the sequential physical channel numbering as described next.
OBAM Connection Strategy for SoundStructure Devices
LAN
C-LINK2
LAN
C-LINK2
LAN
C-LINK2
Once multiple devices are OBAM linked, it is easy to determine the system's input and output physical
channel numbering based on the individual device's physical channel numbering. The way the physical
channels in a multiple device installation are numbered is as follows:
1 The SoundStructure device that only has a connection on the OBAM OUT connection
(recommended to be the highest unit in the rack elevation) is the first device and its inputs and
outputs are numbered 1 through N where N is the number of inputs and outputs on the device (for
instance, 16 inputs for a SoundStructure C16 device).
2 The SoundStructure device whose OBAM IN port is connected to the OBAM OUT connection of the
previous device becomes the next M inputs and outputs for the system where M is the number of
inputs and outputs on the second device (for instance, 12 inputs for a SoundStructure C12 device).
3 This continues until the last device in the link which has an OBAM IN connection to the unit above it
and has no connection on the OBAM OUT port.
Note: OBAM Linking Devices
It is recommended that the units be linked together in the top-down order
connecting the higher OBAM OUT connection to the next OBAM IN connection.
One way to remember this ordering is to imagine the data flowing downhill out of
the top unit and into the next unit and so on.
Following the connections in the previous figure, consider the system of three SoundStructure C16 devices
shown in the following figure as an example of this linking order and how the physical channels are
numbered. In this example the OBAM output of device A is connected to the OBAM input of device B and
the OBAM output of device B is connected to the OBAM input of device C. While the individual devices have
physical channel inputs ranging from 1 to 16 and physical outputs ranging from 1 to 16, when linked
together, the physical inputs and outputs of the overall system are numbered 1 to 48. These physical
Polycom, Inc.
PIN 2: TXD
PIN 3: RXD
PIN 5: GROUND
PIN 7: CTS
PIN 8: RTS
RS-232
OBAM
IR
IN
OUT
12V
Connect
OBAM Out
to OBAM In
PIN 2: TXD
PIN 3: RXD
PIN 5: GROUND
PIN 7: CTS
PIN 8: RTS
RS-232
IN
OBAM
OUT
IR
12V
Connect
OBAM Out
to OBAM In
PIN 2: TXD
PIN 3: RXD
PIN 5: GROUND
PIN 7: CTS
PIN 8: RTS
RS-232
IN
OBAM
OUT
IR
12V
1
2
3
4
5
REMOTE CONTROL 1
1
2
3
4
5
REMOTE CONTROL 2
1
2
3
4
5
REMOTE CONTROL 1
1
2
3
4
5
REMOTE CONTROL 2
1
2
3
4
5
REMOTE CONTROL 1
1
2
3
4
5
REMOTE CONTROL 2
6
7
8
9
10
11
12
13
14
15
6
7
8
9
10
11
12
13
14
15
SoundStructure C16
6
7
8
9
10
11
12
13
14
15
6
7
8
9
10
11
12
13
14
15
SoundStructure C16
6
7
8
9
10
11
12
13
14
15
6
7
8
9
10
11
12
13
14
15
SoundStructure C16
16
16
TM
16
16
TM
16
16
TM
51
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