User manual QSC AUDIO RAVE S

[. . . ] RAVE "S" series Digital Audio Router USER MANUAL w w w w w w RAVE 80s RAVE 81s RAVE 88s RAVE 160s-24 RAVE 161s-24 RAVE 188s-24 (8 AES3 outputs) (8 AES3 inputs) (4 AES3 inputs + 4 AES3 outputs) (16 analog audio outputs) (16 analog audio inputs) (8 analog audio ins + 8 analog audio outs) TD-000070-00 Rev. C *TD-000070-00* 1 Attention! ·Maximum operating ambient temperature is 65° C. ·Never restrict the airflow throught the devices' fans or vents. ·When installing equipment into a rack, distribute the units evenly. [. . . ] The loss of this signal to the slave initiates a fail-over event and the slaved unit becomes active. Redundant operation provides a second RAVE for audio backup in mission-critical applications. 2A 250V 20 x 5 mm FUSE (2 required) Sync connections on the rear panel of a RAVE unit SLAVE/SYNC INPUT This 50 ohm BNC female jack can be used to synchronize the network to an external clock source. The unit must be acting as the system "conductor" and the external clock must be a valid increment of the isochronous cycle clock. This cycle is currently fixed at 750 Hz. The valid external clock range is from 15 kHz to 49. 5 kHz. To implement external synchronization, the first group of front panel hexadecimal switches must be set between "80" and "FE". This provides well over 100 bundle assignments possible for use with the external synchronization feature. As with all managed features, external synchronization can be configured through the management interface using a software application implementing SNMP. How to use for Redundant Operation: SLAVE INPUT is connected to master (main) unit's SYNC OUTPUT. During redundant operation, the slave input provides the backup unit with a sample clock from the primary or master RAVE. As long as this signal is present, the slave unit will exist on the network in standby mode. In standby, all network audio communication is suspended and output relays are forced open. If the master clock is lost, the slave senses the missing clock on its slave input and commences network audio communication. The slave unit becomes enabled when the sample clock is missing from its SLAVE INPUT. 16 Connections: Sync Connection for Redundant Operation, RS-232 Port Rear panel coax cable and Ethernet connections 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 master unit. Bundle assignments and additional parameters available for redundant operation may be configured through MI variables 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. 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. [. . . ] Rather than randomly choosing a wiring scheme for the networking cable, it is important to have the RX wires in one pair and the TX wires in another pair, especially in longer cable runs. RS-232 PORT INFORMATION Pin assignments of 9-pin female D connector: Pin 2: TX out Pin 3: RX in Pin 5: Ground Pins 1 (DCD), 4 (DSR), and 6 (DTR) are tied together. Pins 7 (RTS) and 8 (CTS) are also tied together. DCE (receives on TD) operation; parity bit not checked. 32 Appendix: Resources QSC RAVE resources: http://www. qscaudio. com - Visit our website regularly for up-to-date RAVE information such as: Technology papers Configuration procedures Management aids Internet links to other networked audio information sources Client list (venues utilizing RAVE) Articles and reviews pdf versions of product documentation CobraNet resources: http://www. peakaudio. com - Peak Audio provides the official reference information for CobraNet. One of their currently available software tools available for free download is the CobraNet Discovery utility. [. . . ]