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Lucent Technologies Lineage
®
2000 ECS-12 Controller J85501D-2
Issue 3 August 1998
Installation and Setup 4 - 13
Alarm Outputs: The alarm outputs (BD, HV, ACF, LV,
PMNA, PMNV, PMNE, PMJA, PMJV, PMJE, MNF, and MJF)
are clean transfer contacts and are described functionally in
Section 2. Most office alarm systems are designed for EITHER
closure-on-alarm or open-on-alarm, requiring two wires from
each controller alarm that is used.
Alarm Inputs: The three alarm inputs (RMJ, RMN, and OS) are
compatible with battery voltage on alarm signals,
current-limited by resistors. These alarm inputs are general
purpose. They can be used to detect alarm conditions from any
auxiliary plant equipment, such as ringer, converter, inverter,
etc. The subsystems generating those alarms must be powered
off the same battery and ground system as the controller (i.e., the
dc distribution bus bars). A typical application is shown
schematically in Figure 4-5. Note that the resistor value for OS
is 1000 ohms and the value for RMN and RMJ is 4,640 ohms.
Control Inputs: The control inputs from an external equalize
timer panel (TEQ, TFL, and TF/ER) must be connected to clean
contacts with a common return (TF/ER). A momentary closure
between TEQ and the common return starts equalize. A
momentary closure between TFL and the return stops equalize.
The TR inputs from the external rectifier sequence controller
should be contact closures to discharge ground (DG) to turn off
rectifier groups. In the ECS-12 system, TR1 controls rectifiers
G1, G5, and G9; TR2 controls rectifiers G2, G6, and G10; TR3
controls rectifiers G3, G7, and G11; and TR4 controls rectifiers
G4, G8, and G12.
Miscellaneous Outputs: The miscellaneous signals are
basically power (ABS) and ground (DG) to drive the office
alarm system and some of the control inputs to the controller.
The terminal blocks accept 22 to 24-gauge stranded wire. Wire
terminals are not used. The wire ends are stripped and clamped
directly in the terminal blocks. Multiconductor 24-gauge
jacketed cable or 22-gauge twisted pair wire is recommended.
1. Select the desired alarms and other signals. Based on the
selection, determine the total number of wires to be
connected to the terminal blocks.