Spirax Sarco ILVA20 - Page 28

IM-P337- 6 9 EMM Issue 2
28
+
-
TX-
Fig. 22 2 wire dc wiring terminals
DO NOT USEDO NOT USE
TEMPERATURE PRESSURE
SLAVE
B = Data +
-Ve -Ve -Ve -Ve +Ve +Ve +Ve +Ve
A = Data - COMMON
EARTH*
EARTH*
Tx
Tx
Tx
Tx
Rx
Rx
Rx
Rx
MASTER SLAVE SLAVE SLAVE
R*
COMMON
T1A
+24Vdc +/-10%
250mA (min)
20FF WIRE LINKS
EARTH*
R*