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Matrix 12800 Switchers • Upgrades and Maintenance
PRELIMINARY
Changing the erial port baud rate
N
If this BME is equipped with a redundant controller, the primary and redundant
controllers must be configured for the same RS-232/RS-422 communications
baud rate.
The Matrix 12800 controller cards are factory configured for 9600 baud rate on the
RS-232/RS-422 port. Change the RS-232/RS-422 baud rate of the controller card as
follows:
1. If changing the baud rate of an installed card, open and remove the front door.
2. 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.
C
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. ESD can damage
ICs, even if you cannot feel, see, or hear it.
3. Set DIP switches 1 and 2, on the rear edge of the controller card (figure 6-9), to
the positions for the desired baud rate. See the table in figure 6-9 for switch
positions.
N
The controller card is shown removed for clarity, but the card does not need to be
removed.
PRIMARY A REDUND
ANT A
ON = GOOD
OFF = FAILED
2 LED's:
ON = GOOD
OFF = F
AILED
2 LED's:
PRIMAR
Y B
REDUND
ANT B
ON = GOOD
OFF = F
AILED
2 LED's:
ON = GOOD
OFF = F
AILED
2 LED's:
CONT
POWER SUPPLY B
POWER SUPPLY A
Baud Rate
Selection
DIP Switches
(1 and 2)
Controller
Board
1WS 2WS Rate
f
f
Off
Off
On
On
115200 baud
38400 baud
19200 baud
9600 baud
Off
On
Off
On
1 2
3 4
ON
Figure 6-9 — Serial port selection DIP switch
4. 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.
C
Ensure that you close and secure the fan assembly door when you have
finished this maintenance procedure. The Matrix 12800 may overheat
otherwise.
5. If you changed the baud rate of a card that is installed, close the front door.