Runco Reflection VX-3c Owner's Operating Manual page 31

Projector Numbers!
Each projector can be assigned a unique 3-digit projector number (for example, 001). These num-
bers are particularly useful when you are working with multiple linked projectors, enabling you
to direct commands to a certain projector rather than always broadcasting to the entire network.
For complete information on how to assign projector numbers, see 3.7, Adjusting System
Parameters and Advanced Controls.
NOTE: To loop a single incoming video source through to another projector or display device on
a network, see Video Loop Through in 2.4, Source Connections.
2.10 Keypad Protocols and Conversion
At manufacture every 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 proto-
col.
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 2.24). 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, 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
Communications menu. See 3.7, Adjusting System Parameters and Advanced Controls for fur-
ther 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 com-
mands 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 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).
INSTALLATION AND SETUP
2-25