NEC VT770 Installation Manual page 6

Optional Ceiling Mount Dimensions (Model #: VT65CM)
The following drawings show ceiling mount dimensions.
Dimensions are in inches. For millimeters multiply by 25.4.
The VT65CM comes with a threaded pipe connector and a ceiling plate for flush mounting and minimal height.
1.5" NPT
pipe connector
10.74
6.19
0.40 DIA
ceiling plate
3.00 5.00
6.19
10.74
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