
DRI-STEEM Vapor-logic3 to Vapor-logic4 Adaptor Board Installation Manual • Page 11
Electric humidifiers:
Board removal and replacement
Figure 11-2:
Determining LonTalk interoperability
Corner of VL3 main board shown
VL3 board LonTalk connections (if no wires, then no LonTalk)
Figure 11-1:
Vapor-logic boards
20191817 24232221
7 8 9 101 2 3
16151411 12 13
GTS EXPANSION BOARD 1
GTS EXPANSION BOARD 2
P1P2P3P4P5P6P7P8
P19P18P17P16P15P14P13P12P11
65 87 109 1211 1413 15 1918 20 2321 22 2624 25 2927 28
GTS
31 303233
65
VLC EXPANSION
LON ProtoCessor Module
T2 T1 T1T2T2
3435
1 2 43
7 8 9 101 2 3
20191817 24232221
P21A
P21B
34
VLC
6 5 124 3
T1
1 2 43 65 87 109 1211 1413 15 1918 20 2321 22 2624 25 2927 281716
31 3034 323335
AB
EXPANSION
T2 T1 T1T2T2
VL3
keypad
LonTalk
®
network
LonTalk
®
VL3 main board
VL4 adaptor board (two stacked boards; top board shown)
Laptop or network connection
(Ethernet connection on bottom board)
VL4 keypad connection
(Display connection on bottom board)
The Vapor-logic4 adapter board pin descriptions
are listed in Table 20-1 on the back cover.
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