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LE4020/LE4020CF Installation Manual
Section 3: Connecting the LE4020/LE4020CF
(1) Earth Ground - This terminal must be connected to the Mains Earth, in order to comply with the Tele-
communications Network Safety Standards (Overvoltage Protection Requirements).
TIP (2) / RNG (3) External Telephone Line - These terminals must be connected directly to the incoming tele-
phone line.
T1 (4) / R1 (5) Internal Telephone Line - These terminals must be connected to the TIP and RING of the con-
trol panel.
COM (6,12) Common - This terminal is connected internally to Power Ground.
PGM1 (7), PGM2 (8), PGM3 (9), PGM4 (10) Programmable Open-collector Outputs - These outputs can be
activated by programmed events. Refer to 'Activating the Outputs' for details. The maximum current sink of
each output must not exceed 50mA.
AUX+ (11) Auxiliary Output - 9 to 14VDC Special Application Output, (200 mA max for LE4020 and 100
mA max for LE4020CF).
Note: Electrical current drawn from this terminal is drawn directly from the power supply. This must be added
to the LE4020/LE4020CF current when determining the total draw on the host panel or power supply.
Z1-Z4 (13-14-15-16) Programmable Inputs - These terminals can be set up to trigger events. Refer to 'Inputs'
for details.
DC IN
(17),
(18) Device Power Supply - These terminals must be connected to a rated power supply.
For model LE4020, if the primary power supply does not include a backup battery, connect the battery leads
(red and black wires, item [10] in Section 1.2) to a 12 V / 7 Ah battery. For model LE4020CF, connect these
terminals to the internal power supply module PS4085.
12
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