INSTALLATION & SETUP
VistaGRAPHX 2500 User's Manual
2-17
Figure 2-19. Three Networked or "Chained" Projectors
Notes: 1) To avoid damage, connect only properly wired RS-232 serial
communication cables. See Appendix D for details. 2) It is recommended that
each communication cable be no more than 25 feet in length.
Each projector can be assigned a unique 3-digit projector number (for example,
001). These numbers are particularly useful when you are working with multiple
linked projectors, enabling you to direct commands to a certain projector rather
than broadcast to all projectors. For complete information on how to assign
projector numbers, see 3.7, Adjusting and Checking System Parameters.
At manufacture every keypad is assigned a default protocol, which is simply a
collection of settings that determine how the keypad operates. Once assigned,
this protocol remains in effect until it is changed — that is, the keypad will
operate as it currently does until you change its protocol.
Protocols are most useful for multiple-projector applications. For example, you
might want to change a keypad protocol if you are working with two projectors
and two remote keypads in the same room and need to control each projector
independently (Figure 2-20). When Keypad A has a different protocol than
Keypad B, each keypad communicates only with the projector having a matching
protocol. Or, if you have a network of two or more projectors connected together
via RS-232 serial ports, you may want only certain projectors to respond to a
wired keypad.
NOTE: Matching the protocol on the projector to that of a keypad is done
through a setting in the VistaGRAPHX 2500 Preferences menu. See 3.7,
Adjusting and Checking System Parameters for further information on how to
change the projector's infrared sensor (rear and front) protocol.
A protocol for either type of remote keypad — IR or wired — can be changed
through software commands entered on the keypad. A new protocol set through
software commands remains in effect until the keypad batteries are removed and
replaced (if an IR remote), or until the keypad is unplugged (if a wired remote).
A remote can also be changed manually —you can "hard-wire" new jumper
settings inside the keypad so that they remain in effect until you change the hard-
wiring. Note that a hard-wired protocol can be temporarily overridden by the
Projector Number
'
2.10 Keypad
Protocols
Содержание VistaGRAPHX 2500
Страница 81: ...KEYPAD REFERENCE B 2 VistaGRAPHX 2500 User s Manual Figure B 2 Built in Keypad ...
Страница 82: ...Appendix C Menu Tree VistaGRAPHX 2500 User s Manual C 1 ...
Страница 84: ...SERIAL COMMUNICATION CABLES D 2 VistaGRAPHX 2500 User s Manual ...
Страница 87: ...THROW DISTANCE CHARTS E 2 VistaGRAPHX 2500 User s Manual ...
Страница 88: ...THROW DISTANCE CHARTS VistaGRAPHX 2500 User s Manual E 3 ...
Страница 89: ...THROW DISTANCE CHARTS E 4 VistaGRAPHX 2500 User s Manual ...
Страница 90: ...THROW DISTANCE CHARTS VistaGRAPHX 2500 User s Manual E 5 ...
Страница 91: ...THROW DISTANCE CHARTS E 6 VistaGRAPHX 2500 User s Manual ...
Страница 92: ...THROW DISTANCE CHARTS VistaGRAPHX 2500 User s Manual E 7 ...
Страница 93: ...THROW DISTANCE CHARTS E 8 VistaGRAPHX 2500 User s Manual ...
Страница 94: ...THROW DISTANCE CHARTS VistaGRAPHX 2500 User s Manual E 9 ...