INSTALLATION AND SETUP
2.11 Keypad Protocols and Conversion
The keypad is assigned “A” as its 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 (see below). When Keypad Ahas 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, thus you
can use different protocols to limit responses.
NOTE: Matching the protocol on the projector to that of a keypad is done through a setting in the
Serial Setup menu. See 3.7, Adjusting System Parameters and Advanced Controls for further
information on how to change the projector’s infrared sensor (rear and front) protocol.
Aprotocol for either type of remote keypad - IR or wired - can be changed through software com-
mands entered on the keypad. Anew 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). Aremote 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.
A hard-wired protocol can be temporarily overridden by the software protocol change, effective
until the keypad is unplugged and plugged in again (if a wired remote) or until a battery is
removed (if an IR remote).
2-14
Independent Keypads and Projectors