7.2.2 Repeater’s ports description
1. Outdoor port: connected with the outdoor antenna by cable
2. Indoor port: connected with indoor antenna directly or by cable
3. DC IN: connected with power supply.
7.2.3 Accessories selection
Choosing accessories pay attention to the two characteristics – frequency and impedance. All accessories
shall support the repeater’s frequencies. For example, if the repeater’s frequency is GSM900, all the
accessories must support the GSM900 frequency.
7.3. Repeater Settings
7.3.1. Indicator Light Instructions
• There are totally 5 indicator lights: for power, fault alarm, GSM operation status indicator (green),
DCS operation status indicator (green), WCDMA operation status indicator (green) and signal light
(blue). Note that power and fault alarm is the same indicator with a double color light (red/green).
• Power indicator light is always on (green). When the repeater works with errors, green color turns
to red and starts flicking.
• Each band has a indicator light to denote its operation status. When GSM downlink has 0dBm
output, GSM indicator light is always on, which means that GSM band operates correctly. If this
light is off, it means that an input signal for GSM band is too weak.The indicator lights for DCS and
WCDMA bands have the same meanings.
• Fault alarm light is red. When an input signal is too strong, this light flickers, while the power light
turns off, and the repeater restarts after 30 seconds. When one band is self-stimulated, the
indicator light for this band and the signal light flicker at the same time.
• As for the signal light, no matter which band’s downlink output power is larger or equal to 5dBm,
this light will be always on, which denotes that the repeater has 5dBm or higher output power.
Troubleshooting
• When the ALM light is flicking or on, and the booster has self-oscillation issue, it indicates the
wrong installation of indoor and outdoor antenna. In this case, please, read antenna installation
instructions again and re-install the antennas.
Summary of Contents for LCD1200-4G-D
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