The XFOC card allows NEXUS base devices to be connected via fiber optic cables. This makes it possible to create complex networks whose topology has virtually no limits.
The ports of the XFOC card can be equipped with interchangeable SFP fiber optic modules to meet different applications. The modules can be included in the delivery or fitted by the user. Multimodemodemodules are used as standard, which allow a transmission with a range of 500m. Alternatively, single-modem modules with a range of up to 100Km can also be used.
If two basic devices are connected redundantly, the signals are sent over both lines, so that in the event of an accident the signals can be switched over with sample accuracy and without crackling.
In card redundancy, routing is performed by two XFOC boards in the same base device to maintain communication, even if one board fails.
In both port-based redundancy and card redundancy, signal switching is not audible and can only be detected by a message from the operating software.
When the optional rerouting is enabled and a fiber optic connection fails or is disconnected, the board automatically searches for another route to the destination. This happens with an interruption of the data stream.
The network topologies are freely selectable and, for example, a circular or star-shaped connection structure can be set up.
As the interface between the individual NEXUS base units, the XFOC fiber optic board forms the basis for setting up any NEXUS network. All connection variants are possible, from circular to star-shaped topologies. A different NEXUS base unit can be connected to each of the four fiber ports of the XFOC card because all 256 channels can be transmitted. Complex networks are thus set up, with cross and ring connections: on the one hand to compensate for the failure of individual lines, and on the other hand to maintain the capacity of the bus circuit boards for I/Os, since the XFOC has no routing function. The XRT routing and fiber optic board was developed for such purposes because it has its own matrix of 8448 sources on 8448 sinks and is therefore also suitable for daisy-chaining and as a star point, as previously only known from the Star Router.
| XFOC_07 | 1 x 4TE |
| SFP | 4x | Nexus-Format | bidirectional |
| Audio channels | 256, duplex channels per port (32 Bit) |
| Communication channel | 1, duplex channel per port |
| Sync channel | 1, duplex channel per port |
| Transmission rate per fiber | max. 1250 MBit/s |
| Multimode | Graded-index fiber 62,5/125 μm or Graded-index fiber 50/125 μm |
| Single mode | Graded-index fiber 9/125 μm |
| Standard version LC for spanning distances of up to 220/500 m | |
| Mode | multimode |
| Wavelength | 830…860 nm, nom. 850 nm |
| Optical power (transmitter) | –9,5…–4 dBm @ 50/62,5-μm optical fiber |
| Optical sensitivity (receiver) | –17…0 dBm |
| Distance | max. 500 m @ 50-μm optical fiber(220 m @ 62,5-μm-Faser) |
| on request, for spanning distances of up to 100 km | |
| Mode | Singlemode, multimode, automatic detection |
| Wavelength (transmitter) | 1285...1350 nm, nominal 1300 nm |
| Optical power (transmitter) | –9,5…–3 dBm @ 9-μm optical fiber |
| Wavelength (receiver) | 1260…1580 nm |
| Optical sensitivity | –20…–3 dBm |
| Distance | max. 550 m @ 50/62,5-μm optical fiber; (up to 5000 m @ 9-μm optical fiber) |
| Temperature range | 0° C to +50° C |
| Max humidity | max. 90 %, non-condensing |
| Temperature range | –35° C to +70° C |
| Max humidity | max. 90 %, non-condensing |
| Voltage | +4,75…5,25 V |
| Currrent | ca. 1,3 A |
| Weight | 0,31 kg |
Contact
| Stage Tec Entwicklungsgesellschaft |
| für professionelle Audiotechnik mbH |
| Tabbertstraße 10-11 |
| 12459 Berlin/Germany |
| Tel. +49 30 63 99 02 - 0 |
| Fax +49 30 63 99 02 - 32 |
| office@stagetec.com |
