Setting The Dip Switches; Swapping The SErial Port Protocol (Rs-232/Rs-422) - Extron electronics Matrix 12800 Wideband video User Manual

Upgrades and Maintenance, cont'd

Setting the DIP Switches

Swapping the serial port protocol (RS-232/RS-422)

N If this BME is equipped with a redundant controller, the primary and redundant
The Matrix 12800 controller cards are factory configured for RS-232 use. Change
the RS-232/RS-422 configuration of the controller card as follows:
1.
2.
C
3.
N The controller card is shown removed for clarity, but the card does not need to be
Figure 6-8 — Serial port selection DIP switch
4.
C
5.
6-10 Matrix 12800 Switchers • Upgrades and Maintenance
controllers must be configured for the same communications protocol.
If changing the configuration of an installed card, open and remove the front
door.
If changing the configuration of an installed card, turn the left and right
knurled knobs on the fan assembly door ¼-turn counterclockwise. Raise the
door and rest it on the roof of the power distribution enclosure.
Do not touch the electronic components or the connectors on the power
distribution plane or on the circuit cards without being electrically
grounded. Handle circuit cards by their edges only. Electrostatic
discharge (ESD) can damage ICs, even if you cannot feel, see, or hear it.
Set DIP switch 3, on the rear edge of the controller card (figure 6-8), to the Off
position for RS-232 or to the On position for RS-422.
removed.
Controller
Board
Serial Port
Selection
DIP Switch (3)
If you changed the configuration of a card that is installed, close the fan
assembly door and turn the left and right knurled knobs ¼-turn clockwise.
Ensure that you close and secure the fan assembly door when you have
finished this maintenance procedure. The Matrix 12800 may overheat
otherwise.
If you changed the configuration of a card that is installed, close the front
door.