Operation and performance – Lab.gruppen C Series 5:4X User Manual
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C Series C 20:8X, C 10:8X, C 10:4X and C 5:4X Operation Manual rev. 1.1.4
Operation and Performance
Each networked group of amplifiers being controlled
by an individual NLB 60E is referred to as a Subnet.
When the NLB 60E is powered up, the NomadLink network receives phantom power. This causes the blue
NomadLink LED on the amplifier front panel and the NomadLink LED on the rear panel to light up. Because the
entire network receives phantom powering from the NLB 60E, NomadLink is active even when the amplifier has
mains power disconnected or is not yet powered up. Should an amplifier fail or be inadvertently disconnected
from the mains, network integrity is fully maintained and all amplifiers remain visible on the system.
5.7.2 Connection and setup
The NomadLink network requires use of an NLB 60E. The NomadLink network is established by connecting
the NLB 60E OUT port to the first amplifier’s IN port. Then a daisy-chain is established by connecting the first
amplifier’s OUT port to the next amplifier’s IN port, and so on. If a closed loop network is desired for improved
redundancy (highly recommended), the last amplifier’s OUT port must be connected to the NLB 60E’s IN port.
For all connections, straight Cat-5 RJ45-equipped Ethernet cables should be used.
Figure 6.7.2a: Rear panel NomadLink connections
Figure 6.7.2b: XLR to RJ45 co´nnections
Optimal NomadLink performance can only be
assured when using Cat-5 cables. However, as
NomadLink requires only two wires plus ground for
communication and phantom power, it is possible
to create converters from RJ45 to, for example,
XLR connectors using 2-wire shielded cable. The NomadLink
network can then be operated using a standard tie-line in a
multicore signal distribution system. See the drawing below for
an example of how to create a converter.
If any cable format or connection other than Cat-5
(or better) and RJ45 is utilized, network perfor-
mance may be compromised. In this event Lab.
gruppen cannot guarantee that the NomadLink
network will be fully operational.