bittner XB400 - Backup Switching

To Next Page

To Previous Page

Page 92

3 Speciﬁcations of the Devices

• In case the error has been removed, the AMPLIFIER LINK STATUS LED will permanently light up again.

This safety feature is certainly not needed in every installation. Therefore, it may be deactivated. The

necessary parameter ClrErrorAuto in the menu SXLSTAT is only available after the activation of Service

Mode 2 (refer to section 3.14.7.2).

Caution

If the conﬁrmation of errors is deactivated, the SXL II will no longer be compliant with safety

requirements. Therefore, it may be deactivated only in appropriate installations.

3.14.9.5 Backup Switching

The SXL II works seamlessly with the Bittner Audio Intelligent Backup Switch AX16. This device may be

connected to the SXL II via the system bus. Combined, the two devices offer a powerful solution for un-

interrupted operation.

In case of error of an ampliﬁer, the SXL II is in direct control of the switching to the backup ampliﬁer:

• The SXL II copies every setting of the defective ampliﬁer to the backup ampliﬁer

• The SXL II transmits the ID of the failed ampliﬁer to the AX16

• The AX16 switches to the backup ampliﬁer

This whole procedure will take only 250ms.

If the defective ampliﬁer and the backup ampliﬁer are not of the same model, the SXL II will copy as many

settings as possible. Different gain structures of the ampliﬁers are considered in advance and will – if possible

– be made up for.

The Force Amp Error function of the web interface (refer to section 3.14.8.7) offers a comfortable way to test

the combination of SXL II, AX16 and ampliﬁers, as well as their wiring. Every possible type of defect may be

tested.

Split Mode

Split Mode allows for the simultaneous operation of ampliﬁers with or without SXL II data port with an

AX16. Every combination or group is possible. Please note that that the ampliﬁers of a group (7+1, 3+1 or

1+1) have to be of the same type (i.e. low impedance or 100V).

Split Mode may be activated in the web interface of the SXL II on page AX16 (refer to section 3.14.8.7).

Please mind the followint points:

• Ampliﬁers without a dataport will be connected to the AX16 using the alive relay. The corresponding

DIP switch has to be set to the ON position (refer to section 3.13.5.2).

• Ampliﬁers with dataport have to be connected with the appropriate cable. The corresponding DIP

switch has to be set to the OFF position (refer to section 3.13.5.2).

• DIP switch 3 of the AX16 has to be set to the ON position (refer to section 3.13.5.4).

Caution

The 4X/8X cross cabling is not available in Split Mode.

 2016 Bittner Audio Int. GmbH