Lucent Technologies Lineage
®
2000 ECS-12U Controller J85501E-2
Issue 3 July 1998 Product Description 2 - 1
2 Product Description
Overview
The ECS-12U Controller consists of a chassis equipped with two
slide-out trays. The upper tray is equipped with a standard
analog control unit, the 113B, which consists of two circuit
boards, the control board (CP1) and the display board (CP4).
The control unit is plugged into a backplane with expansion slots
for two optional circuit packs: the Microprocessor Board (CP2)
and the Datalogger Board (CP3). See “Controller Options” for
more information.
Located behind the tray is a rectifier multiplexing circuit board
(BCC1) that allows signals to pass between the lower and upper
backplanes.
The lower tray is equipped with two standard Rectifier Interface
Boards (RIB) plugged into a backplane with expansion slots for
two optional Rectifier Adapter Boards (RAB). See “Rectifier
Adapter Board” for more information.
The lower tray also provides space for the optional Order Wire
Board and the AKC1B Shunt Isolator Circuit Board. See
“Circuit Options” for more information.
A Fuse Board (CP5), which is mounted inside the front door, is
always required to provide fusing for the controller and rectifier
sense leads. An optional CP5, the LVD/Fuse Board, also
provides the low voltage disconnect function for plants with this
feature. See “Fuse Board” for more information.
A front view of the ECS-12U controller is shown in Figure 2-1.
Figure 2-2 is a block diagram of the controller.