QSC Audio S series - Manual (Page 17)

17
REDUNDANT CONFIGURATION
(hardware setup)
To slave one RAVE unit to another, connect a male-to-male
BNC jumper cable from the sync output of the master unit to
the slave input of the redundant unit. Select the same bundle
assignment(s) on the slave unit as are selected on the mas-
ter unit.
Bundle assignments and additional parameters available for
redundant operation may be configured through MI variables
via SNMP. Redundancy for network links, hardware and
routing is also possible. Refer to the Peak Audio and QSC
Audio websites regarding additional methods for redundant
and fail-safe operation on switched Ethernet LANs.
RS-232 PORT
The RS-232 port is an auxiliary interface which serves two
primary functions. It provides a serial method for upgrading
the CobraNet program code and it provides a means to bridge
serial data onto Ethernet. The serial bridge allows the user
to transmit serial data over the network, from one RAVE unit
to another. This is a handy feature for remotely controlling
and/or programming accessories and processors that require
an RS-232 serial interface. The serial data format is opti-
mized for RAVE at 19,200 baud, 9 bits (or 8 bits w/ parity), 1
stop bit. Note that no parity or data validity detection is done
within RAVE. The unit simply bridges the serial data onto
the network.
Incoming serial data is buffered and broadcast over the net-
work. All attached stations receive these broadcasts and
transmit the data simultaneously out their respective serial
ports. When the RS-232 electrical connection is in use, the
serial port operates in a half duplex mode. Port parameters
(including unicast transmission) may be configured via the
management interface, using SNMP.
For the DB-9 pinout information, see the Appendix.
Rear panel coax cable and Ethernet connections
Configuration example for redundant audio transmission
Note that audio connections must be present at both devices. This may be accomplished through
the use of “Y” connections or by channel duplication from a console or other source device.
Configuration example for redundant audio reception
Note that destination devices will need to be connected to audio sources from both RAVEs.
Although RAVE provides a means to do this directly, a splitter box, duplicate console inputs or
redundant amplifiers may also be used.
Connections:
Sync Connection for Redundant Operation, RS-232 Port