Christie DLV1280 DX, User Manual, Page: 76 / 143

OPERATION
DLV1280 DX User’s Manual
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2. Unplug the keypad and change the protocol in the keypad as desired. Do
this either by entering the short-cut software command or by hard-wiring
the keypad as described in 2.10, Keypad Protocols and Conversion.
3. Plug the keypad back into the projector. Return to the Communications
menu and select the new protocol you have just set up in the wired
keypad.
TURNING OFF THE WIRED KEYPAD:
Use the IR remote keypad to select
OFF
in the
“Wired Keypad” list. The projector will no longer respond to the wired keypad.
Broadcast Key
Enter a checkmark if you want keypad commands sent to one projector to be relayed
to all projectors in a network. Note the
key will temporarily “override” the
effect of a broadcast setting and allow you to control a specific projector when
necessary.
Projector
Enter a three-digit number (such as "001") to assign or change a number to the
projector currently in use–if the current projector already has a number assigned, that
number will appear here. Numerical identity for projectors is required whenever you
want to communicate with a
single projector within a
multiple-projector application
(see
key description in 3.3,
Using the Keypad). If you make
a mistake in assigning or
changing the projector number,
press
Exit to cancel.
For complete information about
controlling multiple projectors,
see Section 3.8.
Split Network
NOTES: 1) Requires double serial links—RS-232 and RS-422—between all
projectors in a network. 2) Set each projector’s Broadcast Key OFF. 3) Keypads
cannot broadcast in a split network—use controller(s) instead. 4) Do not use a split
network when downloading new projector software to a network.
Enter a Split Network checkmark if you have a network in which each projector is
connected via both its RS-232 and RS-422 serial ports (Figure 3.23A). At each
projector, serial communications will then remain on either its RS-232 or RS-422
path (depending on the controller) rather than being broadcast to all 3 remaining
serial ports. Should a projector or path ever fail, the other path will be available as a
back-up. The Split Network feature is unnecessary when only a single serial link is
connected between any two projectors (Figure 3.23B), and will cause communication
errors if these single links vary from RS-232 to RS-422 anywhere in the network.
Likewise, if you have two serial links connected between any two projectors, failure
to use the Split Network checkbox can also cause a communication error.