Extron electronic MAV User Manual Page 65

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B-3MAV Series Switchers • Reference Information
Closing the switcher
To close the switcher when you have finished performing a procedure in this
chapter, do the following:
1. Reinstall any cables you removed. To connect a self-latching cable to a
receptacle, align the holes in the connector with the pins in the
receptacle, and press evenly until the receptacle tabs lock into
place.
2. Place the top cover (and the front cover if a firmware
upgrade was performed) in place and replace all the
screws that were removed in Opening the switcher on
page B-2.
Swapping the serial ports
The MAV switchers are usually configured for RS-232 use. If you want to use
RS-422 and the switcher is configured for RS-232, or if you want to use RS-232 and
the switcher is configured for RS-422, do the following:
1. Follow the instructions in Opening the switcher on page B-2 for removing the
top cover.
2. Locate the switcher’s front panel board (figure B-2).
J1 RS-422
receptacle
Slots for removing IC
with PLCC IC puller
Label includes
Extron part number &
Software version (Vx.xx)
Key
J2 RS-232
receptacle
Pin 1 (red stripe on ribbon cable )
19-965-01
Vx.xx
19-965-01
Vx.xx
U7
Figure B-2 — Front panel board
3. On the side of the front panel board that faces the rear of the switcher, locate
the RS-232 ribbon cable. The RS-422 ribbon cable receptacle, which is
normally empty, is located to the left of the RS-232 ribbon cable receptacle.
4. Remove the RS-232/RS-422 ribbon cable by pressing the two RS-232/RS-422
receptacle tabs outward, and pull up evenly on the cable
connector to remove it from the current receptacle.
5. Plug the cable in to the desired receptacle by aligning
the holes in the connector with the pins in the RS-232 or
RS-422 receptacle, and pressing evenly until the
receptacle tabs lock into place.
6. Reinstall the switcher’s cover. See Closing the
switcher on page B-3.
Ribbon cable
Self-latching receptacle
Ribbon cable
Connector
Self-latching receptacle
Ribbon cable
Self-latching receptacle
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