Issue 2.3
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PYXIS
System User Guide
4.2.4.4
Snell Simple Switcher Protocol (SW-P-03)
Similar to General Switcher Protocol but with reduced capability, such as only being able to address
128 destinations. Has the advantage of being able to set more crosspoints per video frame than
General Switcher. The port may also be configured for baud rates up 230kbaud.
The full specification for this protocol is available from Snell.
4.2.5 2449 Configuration (Switches & Headers)
Figure 15: 2449 Nebula Controller Configuration Components
4.2.5.1
2445 Nebula Control Card
The push button reset switch forces a reboot of the card as if from power up. The functionality is the
same as the reset switch on the 2449 base card (which is easier to reach when the controllers are in
the frame). Section 4.2.5.3 explains the Reset Function in more detail.
Two banks of 4 DIP switches labeled CONFIG SWITCHES do configure the controller and its basic
operation. Table 6 and the following text describe the function of each switch and highlight the default
settings the 2449/2445 is supplied with when in a Pyxis frame.
