Section 6: Troubleshooting Guide - DSC LE4020 Installation Manual

LE4020/LE4020CF Installation Manual
Powering up the LE4020/LE4020CF – When powering up the LE4020/LE4020CF, always connect the bat-
tery (if used) first before connecting primary DC power from the control panel or transformer.
Wiring Primary – R-1/T-1 of LE4020/LE4020CF to RING/TIP of control panel, DC power from control panel
or DC transformer to DC input, backup battery.
Wiring Backup – Incoming line to RING/TIP on LE4020/LE4020CF, R-1/T-1 of LE4020/LE4020CF to
RING/TIP of control panel, R-1/T-1 of control panel to house phones, DC power from control panel or DC
transformer to DC input, backup battery.
Testing Communications – When the LE4020/LE4020CF transmits a signal for the control panel, or for an
internal transmission, the BLUE light flashes once when the signal is transmitted and twice when it receives a
kiss-off.
SIM – The SIM should be activated at least 24 hours prior to installation. The LE4020/LE4020CF will show
signal strength with an inactive SIM; However, it will display the signal strength of any available wireless net-
work. The SIM must be active to ensure the signal strength displayed is that of the wireless network provider
for which the SIM belongs to.
Panel Programming – The control panel should be programmed to communicate Contact ID or SIA exactly
the same way it would be programmed to communicate Contact ID or SIA over the telephone line.
Blue/Green LED Status
Both Signal Strength LEDs
ON
Top LED FLASHING with
bottom LED ON
Bottom LED ON
Bottom LED FLASHING
Both LEDs OFF
Both LEDs Flashing
ON/OFF together
Both LEDs Alternating

Section 6: Troubleshooting Guide

What it means CSQ Values
Excellent Sig-
14+
nal Strength
Excellent Signal
11-13
Strength
Good Signal
7-10
Strength
5-6
Poor Signal (no trouble)
Strength 1-4
(with trouble)
No Signal
0
Strength
Signal Strength
N/A
is invalid
Radio Reset
N/A
Sequence
Signal Strength Status
l Unit can be installed in the current mounting location.
l Unit can be installed in the current mounting location.
l Unit can be installed in the current mounting location.
Ensure the antenna cable is plugged securely into the radio con-
l
nector.
If the SIM is active, connect a battery to the unit and test vari-
l
ous locations for good/excellent signal strength.
Connect an antenna extension kit (LTE-15ANT, LTE-25ANT,
l
LTE-50ANT).
If the red LED is also FLASHING, refer to the RED LED
l
chart.
Verify SIM card is activated.
l
l Ensure the antenna cable is plugged securely into the radio con-
nector.
l If the SIM is active, connect a battery to the unit and test vari-
ous locations for good/excellent signal strength.
l Connect an antenna extension kit (LTE-15ANT, LTE-25ANT,
LTE-50ANT).
Radio is in process of network registration.
Radio is performing a Reset. If the issue persists, please verify the SIM
card is inserted correctly.
22