Lucent Technologies Lineage 2000 ECS-12U - Order Wire Board; Shunt Isolator Circuit; Mixed Types of Rectifiers in One Plant

Lucent Technologies Lineage
®
2000 ECS-12U Controller J85501E-2
2 - 20 Product Description Issue 3 July 1998
Circuit Options
Order Wire Board
The Order Wire Interface feature is optional for the ECS-12U
Controller. This feature is a field installation kit ordered per
J85501E-2 List H. It should be ordered when the controller will
be monitored over the FT- Series G embedded maintenance
system or a similar order wire system. The Microprocessor
Board (CP2) must be used along with the Order Wire Interface
feature to allow the interface between the modem and the
FT-Series G order wire circuit. Additional equipment and
connections are required outside the controller to establish the
communication link over the FT-Series G embedded telemetry
system (see Section 4, “Optional 248A Order Wire Board”).
Shunt Isolator
Circuit
The ECS-12U controller was designed for operation in a battery
plant that has the plant shunt in the return (ground) lead. If the
plant shunt is in the battery lead, the shunt isolator circuit is
required. The shunt isolator circuit can also be used to interface
non-standard shunts to the ECS controller. (Non-standard shunts
are shunt sizes other than those listed as compatible with the
ECS controller.)
The AKC1B shunt isolator circuit uses DIP switch selectable
programming to marry a wide range of shunt and current
combinations to the standard values accepted by the controller.
If the plant shunt is in the battery lead, the AKC1B provides the
required isolation of the shunt signal and references it to ground.
The AKC1B shunt isolator circuit is provided with J85501E-2,
List P. It replaced the AKC1B provided with J85501E-1, List J,
to provide a more rugged power supply with reverse polarity
protection and voltage transient protection.
Mixed Types of
Rectifiers in
One Plant
The ECS-12U controller may be used to control a total of 12
rectifiers. There are 12 rectifier interface ports on the lower
backplane of the controller. Rectifiers may be of different types
with each requiring different cable types. Cables for each
rectifier type are available; however, cables for rectifiers other
than those made by Lucent Technologies will require
termination to either a screw or wire wrap terminal at the
rectifier end of the control cable. If Lineage
®
2000 SR series and
J855 series ferroresonant rectifiers are used, only the rectifier
interface boards (RIB) are required. All other rectifiers require