Parallel Operation For Redundancy - Tait T809-10 Service Manual

MBZ-00001-01
Transistor Switch
+RC
1K
PSU
–RC
R*
Additional resistor
Figure 3.5 Remote control using a transistor or standard switch
When V
Note:
CC
the resistor R* must be connected.
The value of R* in kΩ is given by:
3.7

Parallel Operation for Redundancy

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Copyright © 2004 Tait Electronics Ltd
V
CC
PSU
is 4 to 10V , the resistor R* is not required. When V
DC
V
( )
R KΩ = ----------------------
Installation Guidelines
Standard Switch
Additional resistor
R*
+RC
1K
10mA
–RC
– 1.1
cc
1 –
10
29
max
V
CC
External
power
source
is >10V
CC DC
November 2004