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"Discrete Mode"
In the Discrete Mode each relay in the panel is visible on
the Clock display. T he relays may be controlled individually
or in groups as programmed by the clock.
These groups or individual relays may be controlled as part
of a schedule or by a photocell or switch push button.
8 Zone and 16 Zone Modes
In the 8 zone and 16 zone modes the individual relays are
not visible from the clock. Instead only the Zones are visi-
ble. To indicate this the numbers listed in the clock will be
proceeded by a small "z". Also in the panel listings the word
"load" is replaced by "Zone"
Types of GR 2416 Card
The GR 2416 comes in two versions.
a) In systems with a DTC (Ivory) Clock.
In these systems the DTC (Ivory) Clock is both the pro-
grammer for the system and the source of Time based
commands. The back of the Ivory clock has the place
where the modem is connected. All control cards in such a
system have an 8 Position "RJ45" connector at the top of
the board to plug the clock into.
TopSectionofa
GR 2432/48 Card
in systems w ith a
DTC (Ivory) Clock.
Systems with a BLUE BOX
Here the intelligence for the clock is built into the "Master"
relay card. Usually in such a system there are not more than
3 panels. With large systems it is easier to set up the sys-
tem by walking the clock around the system and plugging
into each section.
The Blue Box is designed for small stand alone systems
with less than 20 addresses on a bus. The Slave card for
theBlueboxmayalsobeusedinaGR2400systemwitha
central Clock/Programmer.
LIGHTING CONTROL & DESIGN
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30 Mar 98 Mon
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