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S P E C I F I C AT I O N S U B M I T TA L Page
Job Name:
Job Number:
Model Numbers:
GRAFIKTM Systems NTOMX Keyswitch Custom Wallstation
369-320 Rev. A 4 08.31.10
Mounting
Installation
PELV (Class 2: USA) Wiring
• Use PELV (Class 2: USA) wiring to daisy-chain
wallstations to the processor panel.
• Make connections inside the wallbox or in a switch/
junction box with a maximum wire length of 8 ft
(2.5 m) from the link to the wallstation.
• Two 18 AWG (1.0 mm2) conductors for common
(terminal 1) and 24 V (terminal 2). If wires are
larger, splice a 18 AWG (1.0 mm
2
) wire to the wires
to make the connection.
• One shielded, twisted pair 18 AWG (1.0 mm
2
) for
data link (terminals 3 and 4).
• Connect Drain/Shield as shown. Do not connect to
Ground (Earth) or wallstation. Connect the bare
drain wires and cut off the outside shield.
Cable is available from Lutron:
GRX-CBL-346S-500 (non-plenum) and
GRX-PCBL-346S-500 (plenum). Check compatibility
in your area.
Control Wiring
1: Common
2: 24 V
(2) 18 AWG (1.0 mm
2
)
D: Drain/
Shield
Data Link
3: MUX
4: MUX
(1) Shielded, twisted pair
18 AWG (1.0 mm
2
)
Control
Faceplate
adapter
Faceplate
Key
Multi-Ganging
• Order Insert (I) style controls.
• To order Wallplates for multi-ganging, specify
“R3” openings in a NovaT ® multi-gang FB (fins
broken) Series model number.
Example:
Wallplate for 2 OMX Keyswitches,
Model # NT-R3-R3-FB-(color)
(2) 12 AWG
(2.5 mm
2
)
(2) 12 AWG
(2.5 mm
2
)