Power Requirements - Shure DDS 5900 User Manual

5.5 Power Requirements

For most installations, the CU 5905 supplies sufficient power for the discussion units. Depending on the setup, the CU
5905 supports anywhere from 22-48 units at a time without additional equipment.
To maximize the unit count without adding equipment:
• Use shorter cables. More units are supported when the distance is minimized between the CU and the discussion
units.
• Use both outputs from the CU. Units must be divided evenly across each chain.
A B Chain
5.5.1 Units Supported by the CU 5905
The following tables show how to connect the most discussion units without adding additional equipment.
Note: When using two chains, distributable the discussion units evenly across both chains to maximize unit count.
1 Meter between Discussion Units
Distance to DU chain One Chain
10 44
30 39
50 34
100 21
Figure 19. Power Decreases when Cables Increase
2 Meters between Discussion Units
Two Chains
48
44
40
22
① Length from CU 5905 to first unit
Distance to DU chain One Chain
10 40
30 36
50 31
100 11
② Distance between participants
Two Chains
48
44
40
22