User's Manual

APEX1930 USER MANUAL V1.0.00 Tech Support: 1-888-317-8766
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all other system parameters are not changed. The featurs is usefull in claering abnormal
conditions.
• System Reset cycles the microporcessor unit. The function is similar to switching off/on the
repeater power switch.
5.5.2. Operating Control
• DL and UL Path Control allows the user to toggle on or off the power ampligiers.
• DL and UL Gain is available when AGC mode is off. The user may enter gain values manually.
Manual gain control is an alternative to autonatic gain control(AGC). Manual gain is disabled
(grayed out) when AGC mode is on. Gain cannot be controlled manually above the available
gain found on the status page. The system will not allow gain to be increased such that
maximum output power(24dBm) is exceeded.
• Gain Tracking sets UL gain equal to DL gain. The feature helos maintain forward and reverse
link ballance. The function control is grayed out when AGC mode is on.
• Automatic Gain Control :
- In contrast to manual gain control, automatic gain control (AGC) sets gain such that the
desired amplifier output level (dBm) is automatically set.
- The user controls gain by adjusting the AGC level. The user may set the level from 0dBm to
24dBm. AGC can be used to control the signal level radiated from the server antennas.
- AGC may also be user to match the repeater to a DAS (distributed antenna system). AGC level
may be restricted by available gain and DL input power.
• UL Gain offset is used in conjuction with AGC to reduce the amount of amplification in the
reverse direction (uplink). In the cases UL offset is set to 0dB.
• Automatic Shutdown (ASD):
- ASD temporarily shuts down the amplifier if the ASD level is exeded. It is not necessary to turn
off ASD. ASD events are stored in the alarm hostory log. Repeated ASD events will evenually
shutdown the amplifier permanently and trigger the external shutdown lamp.
- ASD Level is set to 27dBm by default. It is not necessary to change the default level.