HU-PYXIS
86
PYXIS
System User Guide
8
Break Out Boards
8.1 RS422
Snell have created an RS422 breakout board assembly (9124) which gives the user access to the RS422
ports using a standard 9 Way D-Type Sockets in a 2U form factor panel. The 9124 RS422 breakout assembly
converts the 50 way connectors on the rear of the Pyxis to individual RS422 9 way D-type connectors, using
Snell standard pin-outs for ease of wiring. Each 9124 assembly breaks out up to 64 RS422 ports.
The 9124 Breakout board assembly is supplied as a complete kit of parts as listed below (six digit part
numbers are only included for spares or repairs, contact Snell for prices):
o
912426
: 8 x Transition Boards, 50-way D-Type to 34 way IDC header;
o
912825
: 8 x 34-way twisted pair ribbon cable, 455 mm (18 Inches)
o
912427
: 1 x Breakout Panel,
8 x IDC header to 64 x 9-Way D-Type Sockets
Figure 67: 9124: RS422 Breakout System Diagram
The transition board connects directly onto the 50 Way sockets of the rear panel, the Breakout Panel is a 2U
high module mounted in the 19” rack to the rear of the Pyxis frame and the Ribbon Cable connects the two
boards quickly and cleanly.
This system also allows expansion as more ports are required and added you simply add more transition
boards and if necessary another breakout panel.