Sierra Video Tahoe Series 16 - Manual (Page 26)

Sierra Video Systems
20
Control Panels
(RS-485)
Tahoe Family video routing switcher frames have two 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
Power Up
Once all signal and control connections have been made, turn on the power switch. AC to
the router is indicated by an LED above the power switch. If you have power up problems
ensure that the AC fuse on the back of the switcher is seated properly.
On power up, the controller will restore the routing switcher to the last state it was in
before the power was turned off including all configuration settings as well as crosspoint
switcher status.
.
Host & Terminal Port
Installation
Pin RS-232 RS-422
1 Ground Ground
2 Transmit Transmit (-)
3 Receive
(Tied to pin 8)
Receive (+)
4 Not used Not used
5 Not used Not used
6 Not used Not used
7 Not used Transmit (+)
8 Receive Receive (-)
9 Ground Ground