Tait T800 SL2 25W - Page 362

G5.2 DC Line Keying M8SL2-00-002-812
© Copyright Tait Electronics Limited August 2004. All rights reserved.
Figure 5.8 Isolated Loop Current Switch
Figure 5.9 Typical System
O
+
O
O
-
O
+
O
-
SW
SW
Isolated
Supply
-
Unit 1 Unit 2
+
Long Line
Det
Optional bridge
to protect against
polarity reversals
(T223 only).