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Zodiak Installation and Service Manual
Section 6 — Functional Description
Serial Ports
Control of the seven 9-pin D connector serial ports on the rear of the
switcher (
) is provided by this module. The following
ports are available:
•
Two RS-422 HDLC ports labeled CPL 1 and CPL 2 (J8 and J9),
•
Four ASYNC RS-422 serial ports labeled Serial 1 – 4 (J4 – J7), and
•
One RS-232 Diagnostic serial port labeled Diag (J3).
Ethernet
The Video Processor frame connects to two separate LANs in the Zodiak
system, the Panel LAN for communication with the Main panel and the
Menu (also called the Facility) LAN for communication with the Menu
panel. The Video Processor frame also acts as the communication gateway
between the Menu panel and the Main panel.
Two RJ45 connectors on the rear of the frame, Menu Display (J10) and
Control Panel (J11), provide 10/100BaseT Ethernet LAN interface to the
Menu panel and the Main panel.
It is important to note that the TX and RX pairs between the frame and both
control panels must be swapped for proper operation. This is normally
done using peer-to-peer (crossover) cables. The cables supplied with the
Zodiak system are straight-through cables and polarity of the TX and RX
pairs is swapped using the
Cross Over
buttons on the rear of the Main panel
and the Menu panel.
Floppy Disk Drive
The floppy disk drive mounted on the Control Processor/DSK/Still Store
module is provided for running an emergency recovery procedure loaded
on a floppy disk provided with the system. The floppy disk completely
reformats the Video Processor frame hard drive and restores the default IP
addresses set at the factory to return the frame to a known default state for
troubleshooting. The disk should only be used for the emergency recovery
procedure and not for any other purpose. Refer to
Restore Video Processor Frame IP Address on page 176
.