Sierra Video Ponderosa 3G Series Routing Switcher - Manual (Page 43)

PONDEROSA
37
Control Panels
(RS-485)
Ponderosa Family video routing switcher frames have four male 3-pin connectors labeled
“Control Panels” on the rear. These connectors are “looped” together.
The maximum system cable length is 2,000 feet (310m) when the RS-485 network operates at
the higher speed of 31.25K baud. The maximum system cable length is 5,000 feet (1,524m) when
operated at 9600 baud. Consult your Control Panel Manual for more detailed information.
If you make your own interconnect cables, Pin 2 is Ground. Pin 1 and 3 connect pin for pin.
RS-485 Interconnect Cable