
Avaya MPS Architectural Overview
# P0602477 Ver: 3.1.11 Page 23
The VRC backplane is located midway between the front and rear of the chassis. The
backplane contains connectors for the modules that plug into each slot, front and back.
The backplane provides connections for:
• Inter-module signals
• Power from the power supplies to the module slots
• A Time Delay Multiplexing (TDM) bus for PCM (voice/audio)
communications between the TMS assemblies
• Clocking signals for the TDM bus
SLOT 1
SLOT 4
SLOT 2
SLOT 3
AUDIO CONSOLE
HUB B HUB A
E
X
T
S
L
4
S
L
3
M
P
C
O
L
E
X
T
S
L
2
S
L
1
M
P
C
O
L
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
SLOT 1
SLOT 4
SLOT 2
SLOT 3
AUDIO CONSOLE
HUB B HUB A
E
X
T
S
L
4
S
L
3
M
P
C
O
L
E
X
T
S
L
2
S
L
1
M
P
C
O
L
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
SLOT 1
SLOT 4
SLOT 2
SLOT 3
AUDIO CONSOLE
HUB B HUB A
E
X
T
S
L
4
S
L
3
M
P
C
O
L
E
X
T
S
L
2
S
L
1
M
P
C
O
L
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
SLOT 1
SLOT 4
SLOT 2
SLOT 3
AUDIO CONSOLE
HUB B HUB A
E
X
T
S
L
4
S
L
3
M
P
C
O
L
E
X
T
S
L
2
S
L
1
M
P
C
O
L
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Slot 1 Slot 2 Slot 3 Slot 4
VRC Front View (Populated with Four TMS’)
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