Issue 2.3
31
PYXIS
System User Guide
5.1
3U Frame Control Connections
Figure 22: Pyxis Control Rear Panel Connectors
This section discusses the rear connectors and ports on a 3U frame. Figure 22 shows a
diagrammatic view of the 3U rear connector panel. The EXP IN/ Port 1 and Port 2/ Config sockets
have dual functions which require jumper and switch settings on the Nebula Control module.
Operation of Port 3 and the Ethernet ports is dependent on jumper settings and software
configuration. Details of settings and modes are below.
5.1.1 Interconnections and Safety
Due to the nature of some of the data ports, especially high-speed video ports, it is impossible to
include fuse protection therefore; any equipment attached to the data ports must comply with Clause
4.7 of IEC/EN60950-1.
5.1.2 Port 1 RS422 or EXP_IN
If the Pyxis is a Master Frame (using 2449 or 2450 Controllers) Port1 should be configured as
RS422 and the required protocol selected in the Nebula database (refer to section 4.2 for details of
Nebula Database and Control Protocol options)
In a slave frame (which must use the 2451 Slave controller) this port will automatically configure to
EXP_IN.
