Crest Audio NEXSYS - VERSION 3.0, Software Manual

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3.4 Network Addressing
Hardware address settings are determined in two ways (depending on the amplifier class.)
In Pro class amplifiers, the network address is given by its Supervisor’s address. A
Supervisor is a unique network node whose address is set via DIP switches on the rear
panel. This is the primary address. The rear of the Supervisor holds up to 12 daughter cards
– each with 2 ports for a total of 24 ports. An amplifier’s secondary address is given by the
port number to which it is connected. The maximum number of amplifiers that can be con-
nected to a network is 744 (31 Supervisors, each with 24 amplifiers.)
Pro class Load Monitor Mainframe’s network addresses are set in the same manner as
Supervisors. Load Monitors can hold up to 12 daughter cards which can accommodate 2
amplifier channels for a total of 24 amplifier channels.
CK family Power Processing amplifiers are connected directly to the network – there is no
need for Supervisors and Load Monitors. Each address is set via a hexadecimal* rotary
selector on the back of the NexSys network module (NC-NXS.) A network can accommo-
date 31 CK family amplifiers before a hub is needed. For systems with more than 31 nodes,
a NexSys Hub is needed. The secondary network of the hub can accommodate 31 more
nodes. So the largest CK class system would contain 961 amplifiers. Load Monitoring and
other processing functions in the CK family amplifiers use the same address as the amplifi-
er.
* NexSys displays most addresses in decimal (Base 10). You must address
the CK family amplifiers using the hexadecimal spinwheels. A hex-to-dec-
imal table is provided in Appendix A.
When NexSys displays or requires a number to be entered in hexadecimal
(Base 16), an ‘H’ will appear next to the number. The bus server address
in the options bus server window is a prime example.
NexSys v. 3.0 Crest Audio Inc.
Page 3.6 Software Manual