XT Series DISK RECORDER - Version 9.00 - Hardware Technical Reference Manual
EVS Broadcast Equipment SA – April 2008
Issue 5.00
27
2.8 CONNECTING MULTIPLE XT[2]
SERVERS ON XNET
The XNet network is composed by several XT systems all connected with
a 75-Ohm coaxial cable (BNC).
The exchange between systems is operated through the SDTI interface at
540 or 1485 Mbps.
On XT[2] servers there are two pairs of SDTI connectors :
• XNet Relay connectors can be used at a maximum speed of 540 Mbps.
• XNet[2] Non-Relay connectors can be used at 540 or 1485 Mbps.
When connected on the SDTI network through Relay connectors, the SDTI
loop is always established, even if the XT is not powered on. If connected
through Non-Relay connectors
, the SDTI loop is closed only when the
Multicam software is started. It is therefore recommended to use XHub
when using Non-Relay connectors to avoid network interruptions.
The XNet requires a network server dedicated to the management of the
Database shared among all LSM-XTs. This is assigned to one of the LSM-
XT systems on the network. The XT acting as the network server can of
course be used for standard LSM/video server operation.