Reference Information, cont’d
CrossPoint Plus Matrix Switchers • Reference Information
B-4
Swapping the serial ports
The CrossPoint Plus switchers are factory 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 appropriate instructions in “Opening the Switcher” on page B-2 to
gain access to the interior of your switcher.
2.
Locate the switcher’s front panel board (figure 47).
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 )
19-708-01 Vx.xx
U7
Figure 47 — CrossPoint Plus 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.
To remove the cable from the current receptacle, press the two receptacle tabs
outward as shown at the left, and pull up gently on the cable
connector to remove it from the receptacle.
5.
To plug the cable into the desired receptacle, align the
holes in the connector with the pins in the receptacle,
and press evenly until the receptacle tabs lock into
place.
6.
Reinstall the switcher’s cover. See “Closing the
switcher” on page B-3.
7.
Attach the power cord to the switcher and to the AC power source. Ensure
the switcher is working properly.
8.
If the switcher was removed from a rack, remove its power cord, reattach the
switcher to the rack, and reconnect the power cord.
9
.
Reconnect the input and output cables.
Installing a firmware update
The IC that contains the firmware for the matrix switcher also contains the
memory in which presets and audio levels are saved. When you replace the IC,
these settings will be lost. You may want to record the presets and audio levels
before you replace the IC.
Ribbon cable
Self-latching receptacle
Ribbon cable
Connector
Self-latching receptacle
Summary of Contents for CrossPoint 124
Page 20: ...Installation cont d CrossPoint Plus Matrix Switchers Installation 2 8...
Page 40: ...Operation cont d CrossPoint Plus Matrix Switchers Operation 3 20...
Page 48: ...Programmer s Guide cont d CrossPoint Plus Matrix Switchers Programmer s Guide 4 8...
Page 55: ...CrossPoint Plus Matrix Switchers A Appendix A Specifications Specifications Part Numbers...
Page 68: ...Reference Information cont d CrossPoint Plus Matrix Switchers Reference Information B 8...
