Wallbox Input Closure Interface
GRX-WCI
PELV (Class 2: USA) Devices
GRAFIK Eye 3000 12 V
200 mA
GRAFIK Eye 4000 24 V
100 mA
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Overview
The GRX-WCI is for use
with
GRAFIK Eye
3000
and 4000 series systems.
The GRX-WCI mounts
behind the user-supplied
switch to select or adjust
scenes in up to eight
control units. The
interface provides from
two to seven contact
closure inputs.
Specifications
• Operating voltage: PELV (Class 2: USA) low-voltage
type inputs, 12 V
when used on a GRX-3000 system
and 24 V
when used on a GRX-4000 system.
• If input switch is solid state, it must have an output with
an on-state saturation voltage less than 1 V
at 1 mA
and an off-state leakage current of less than 1 mA.
Outputs must be capable of switching operating
voltage for desired life of system.
• The recommended wallbox depth is 61 mm. The
wallbox depth requirements vary with the depth of the
switch being used.
• The GRX-WCI uses one address on the communication
link.
• If there is any question as to whether a switch is
compatible with these specifications, contact the
manufacturer of the switch.
•
Environment:
Ambient operating temperature 0-40 °C
(32-104 °F), 0-90% humidity, non-condensing.
Indoor
use only.
Caution:
The GRX-WCI is
not
designed to work
with the line/mains voltage switches. Use with
line/mains voltage switches could result in
premature failure of the switch being used.
Caution:
Install in accordance with all local and
national electric codes.
Low-Voltage PELV (Class 2: USA) Wiring
• Use low-voltage PELV (Class 2: USA) wiring to daisy-
chain the GRX-WCI to GRX-3000/4000 control units
and other components.
• Make connections inside the wallbox, switchbox, or
junction box with a maximum wire length of 2.5 m
from the link to the GRX-WCI.
When used with GRX-3000 control units:
• Use two 1.0 mm
2
(#18 AWG) conductors for common
(terminal 1) and 12 V
(terminal 2). Be sure to wire the
terminal 2 connection correctly; refer to the GRX-3000
Installation Guide
.
• Use one shielded, twisted pair 1.0 mm
2
(#18 AWG)
wires for data link (terminals 3 and 4).
When used with GRX-4000 control units:
• Use two 2.5 mm
2
(#12 AWG) conductors for common
(terminal 1) and 24 V
(terminal 2). These will not fit
into terminals; see next page for connection details.
• Use one shielded, twisted pair 1.0 mm
2
(#18 AWG)
wires for data link (terminals 3 and 4).
• Connect drain/shield as shown on next page.
-Do not connect ground/earth to GRX-WCI.
-Connect the bare drain wires and cut off the outside
shield.
Installation Instructions
Please Read before Installing
Input wiring
harness
Program
button
Addressing
and function
switches
Power
LED
