Lucent Technologies Lineage
®
 2000 ECS-12U Controller J85501E-2
Issue 3  July 1998  Product Description  2 - 19
will also show the status of the Contactor. The red LVD/OPEN 
LED and Form C contact closure are powered from the battery 
side of the Contactor, while the yellow LVD/FAIL LED is 
powered from the load side of the Contactor. If the rectifiers are 
powered down and the Contactor is open, the red LVD/OPEN 
LED will be illuminated, the Form C contact closure will show 
the Contactor as open, and a Minor Fuse Alarm will be given 
because the 113B sends all alarms when it loses power.
In battery plants without a Contactor, the red LVD/OPEN LED 
will never illuminate, and the Form C contact closure will 
always show the non-existent Contactor as open.
Controller 
Options
A separate product manual, Lineage
®
 
2000 ECS Controller 
Options (Select Code 167-790-109), provides additional 
information on the Microprocessor Board, Datalogger Board, 
and Voice Response Option.
Microprocessor
Board
The microprocessor board adds sophisticated firmware features 
such as remote communications, optional voice response, 
diagnostics, and statistics to the controller. The Voice Response 
Option provides high-quality voice reporting of plant 
information and access to plant functions from a remote 
location. 
Datalogger Board
The datalogger board may be used together with the 
microprocessor option to provide general purpose ac and dc 
voltage, current, and transducer monitoring and relay control.
Rectifier Adapter
Board
One or two Rectifier Adapter Boards (RAB) may be added to the 
basic ECS-12U controller to permit non-Lineage
®
 2000 
rectifiers, whether manufactured by Lucent Technologies or not, 
to be used in any combination in the battery plant. This permits 
the user to obtain the latest technology features of the ECS 
controller in a variety of battery plants. The bottom RAB is 
associated with rectifiers 1-6. The upper RAB is associated with 
rectifiers 7-12. See Figure 2-2 and Section 4, “Rectifier Port 
Selection,” for more details.