Sierra Video Ponderosa 3G Series Routing Switcher Family with MediaNav - Manual (Page 78)

SIERRA VIDEO
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Serial Control Ports
The system has three serial ports for Host protocol control. These three serial ports are used for
local or networked PC computer control, and control panel network operation. The three serial
ports are shipped with a factory default as described below;
Ctrl Port
#
Protocol Baud Rate
Data
Bits
Parity
Stop
Bits
Emulation
1 Host 115.2K 8 None 1 ANSI
2 Host 115.2K 8 None 1 ANSI
3 Host 115.2K 8 None 1 ANSI
Connections to the 9-pin can be made using a standard one- to-one cable. Pin functions are
described below.
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
Host Port Installation
Pin RS-232 RS-422
1 Ground Ground
2 Transmit
Transmit (-)
3 Receive Receive (+)
4 Not used Not used
5 Ground Not used
6 Not used Not used
7 Not used Transmit (+)
8 Not used Receive (-)
9 Ground Ground