Lucent Technologies Lineage
®
2000 ECS-12U Controller J85501E-2
4 - 18 Installation and Setup Issue 3 July 1998
Shunt Isolator
Circuit
When a plant whose shunt is located in the “hot” or battery lead
is connected to the ECS-12U, the AKC1B Shunt Isolator Circuit
must be used. This circuit provides an isolated signal, BATSH
and BATSH G, that is connected to the terminal block
TB1, 1 and 2 respectively. Power for the circuit is connected
from the lower backplane connector J716. A 20-foot cable with
fused shunt leads is furnished for bolting directly to the plant
shunt. If the plant shunt is located further than 20 feet, the
installer must splice the 22-gauge blue and white-blue wires in
order to provide adequate length. This circuit, along with the
mounting hardware, 847270022 wire set, and four 403929219
shunt fuses, is provided per J85501E-2, List P, field installation
kit. Figure 4-13 shows the installation of the circuit in the
controller.
A shunt isolator is required when retrofitting the originating bay
of 152A-155A power plants. A 259A terminal strip and
associated mounting is also included with this kit to provide a
common fuse alarm (FAJ) connection point for distribution
panels and the controller. Mount this terminal strip in the
Table 4-D: External Connections Required to Establish
a Communication Link
Over the FT-Series G Embedded Telemetry System
Connection For Site
SD-7C441-01
417
Repeater
T-96654-32
1.7
Repeater
T-96654-37
Terminal
T-96653-32
Fig. Note Fig. Note Fig. Note Fig. Note
2 A25C
cables (from
alarm
interface
panel)
Repeater CAD 5 307 8, 7
13,
14
23
thru
26
71
Call, TL
Repeater
Terminal
CAD 6
CAD 7
311
321
33766
2 or 3 digit
dialing
address
Repeater
Terminal
CAD 6
CAD 7
315 3 55 3 55 7 62
GND
Repeater
Terminal
CAD 6 309 3 60 3 60 7 69
DDD EN Terminal CAD 7
312
313
764
Line Terminal CAD 7
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