Using The Expansion Bus - Extron electronics DMP 128 User Manual

4. Connect the EXP port of one unit to the EXP port of a second unit
MIC/LINE INPUTS
100-240 ~ 0.6A
using the included shielded (or similar) CAT 6 cable.
MIC
+48V
1 2 3 4
NOTE: The front panel EXP LED indicates device to device
5 6 7 8
50/60 HZ
connection and configuration status as follows:
•
MIC/LINE INPUTS
100-240 ~ 0.6A
•
MIC
+48V
1 2 3 4
•
5 6 7 8
50/60 HZ
•
•
•
•
•

Using the Expansion Bus

After configuration and connection, the two units have 16x16 channels of bi-directional
audio communication.
The expansion bus from the primary unit (see figure 52,
•
inputs 1 to 16 of the secondary unit (see figure 52,
• At the same time, the expansion bus from the secondary unit sends audio to Expansion
inputs 1 to 16 of the primary unit.
Figure 52.
1 2 3 4 9 10
5 6 7 8 11 12
(non-AT models)
1 2 3 4 9 10
Off — The unit is not connected to a second DMP 128.
5 6 7 8 11 12
On — The unit is connected to another DMP 128 and
configured as the primary unit.
Blinking — The unit is connected to another DMP 128
and is currently configured as the secondary unit.
(AT Models)
Off — Dante device is not responding.
On — The EXP port is connected to a non-AT DMP 128
and configured as the primary unit.
Blinking — The EXP port is not connected.
Î Î
EXP Bus Connections
DMP 128 C AT
1 2 3 4
O
U
1 2 3 4
T
P
U
11 12 13 14 15
5 6 7 8
T
S
DMP 128 C
1 2 3 4
O
U
1 2 3 4
T
P
U
11 12 13 14 15
5 6 7 8
T
S
) sends audio to Expansion
A
).
B
EXP Bus Connection
Primary (1) to Secondary (2)
A A
Ï Ï
Õ Õ
0
1
2
3
4
5
6
Ö Ö
DMP 128 • Software Control
DIGITAL I/O
5 6 7 8 9 10 1 2 3 4
EXP LAN
16 17 18 19 20
RS-232
RESET
Tx Rx
DIGITAL I/O
5 6 7 8 9 10
EXP LAN
16 17 18 19 20
RS-232
RESET
Tx Rx
B B
81