Lutron Electronics EM-9300SD Operation Manual page 27

Meter
Center Pin..........................Pin 4
(3.5 mm jack plug)
Ground/shield.......................Pin 2
The 16 digits data stream will be displayed in the
following format :
D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
Each digit indicates the following status :
D0 End Word
D1 & D8 Display reading, D1 = LSD, D8 = MSD
For example :
D9 Decimal Point(DP), position from right to the
left
0 = No DP, 1= 1 DP, 2 = 2 DP, 3 = 3 DP
D10 Polarity
0 = Positive 1 = Negative
D11 & D12 Annunciator for Display
℃
℉
ft/min = 11 LUX = 15
% RH = 04
D13 When send the upper display data = 1
When send the lower display data = 2
D14 4
D15 Start Word
If the display reading is 1234, then D8 to
D1 is : 00001234
= 01 Knot = 09
= 02 Km/h = 10
PC
(9W 'D" Connector)
Pin 5
25
2.2 K
resistor
mile/h = 12
m/S = 08
Ft-cd = 16