Lab.gruppen C Series C 16 4 Operation Manual page 7

6 QUICK GUIDE OVERVIEW
6.3 NomadLink / Ethernet
network setup
The amplifier includes, as a standard feature, internal
facilities for the NomadLink monitoring and control
network. All features of the NomadLink network
are accessible via a PC running Lab.gruppen's pro-
prietary DeviceControl software. A single rackspace
NLB 60E NomadLink Bridge & Network Controller, ac-
cepts the TCP/IP data stream from the computer and
converts it to the NomadLink protocols. Even when
no computer is connected, the NLB 60E can initiate
stand-alone power on/off and muting functions, as
well as report any fault or warning conditions.
The PC is connected to the NLB 60E using a
standard Ethernet interface and a crossed Cat-5 cable
(peer-to-peer setup). If a HUB or switch is in the
network, standard "straight" Cat-5 cables must be
used. The front and rear Ethernet connections on
the NLB 60E can be used individually, but only one
PC at a time running DeviceControl can access the
subnet.
Many newer laptop computers will allow
peer-to-peer connection with the NLB 60E
using a standard "straight" Cat-5 cable in-
stead of a crossed cable.
The default fixed TCP/IP address of the NLB 60E is
192.168.1.166. The subnet mask is 255.255.255.0.
For further details, please refer to instructions sup-
plied with the NLB 60E unit.
The NomadLink connections use standard "straight"
Cat-5/RJ45 equipped cables. For a safer mechanical
connection it is possible to use Neutrik EtherCon
"XLR-type" housings on the cables.
US National Differences cl.16.3 requires
that NomadLink network cables must be
rated VW-1.
The OUT port from the NLB 60E must be connected
to the IN port of the first amplifier. The OUT port
from the first amplifier in turn connects to the next
amplifier's IN port to form a daisy chain The OUT
port on the last amplifier is connected to the IN port
on the NLB 60E to close the loop.
12 C Series C 68:4, C 48:4, C 28:4 and C 16:4 Operation Manual
There are electrical limitations to cable
lengths on a NomadLink network, both in
terms of total cable length in the loop and
between any two devices. Read the
Operation and Performance chapter in this manual,
or the instructions supplied with the NLB 60E, to
ensure the network is configured within these
constraints.
Although the network will function as an
open loop under most circumstances, it is
strongly recommended that the loop be
closed by connecting the last amplifier's
OUT port to the NLB 60E's IN port. Doing so will
improve redundancy and communication speed.
External contact closures and 24 V low/high triggers
can be connected to GPI connectors on the NLB 60E
for control of fire-alarm systems or external power
sequencers. For more details read the instructions
supplied with the NLB 60E.
NOMADLINK
IN
ETHERNET
ETHERNET
"Crossed" RJ45 cable:
Between NLB 60E and PC.
"Straight" RJ45 cable:
Between Ethernet switch or hub and NLB 60E.
"Straight" RJ45 cables:
Between NLB 60E and amplifiers, and from
amplifier to amplifier in a subunit.
NOTE: Connection can be made to either
the front or rear panel or the NLB 60E.
Although two computers may be connected
to the NLB 60E simultaneously, only one is
allowed access to the subnet at a time.
C Series C 68:4, C 48:4, C 28:4 and C 16:4 Operation Manual 13
QUICK GUIDE OVERVIEW 6
GENERAL
PURPOSE
OUT INPUT, GPI
IN OUT
NOMADLINK
IN OUT
NOMADLINK