Adtran TRC4305 Manual Do Utilizador
Section 3, Engineering Guidelines
TRACER 4305 System Manual
24
© 2002 ADTRAN, Inc.
612804305L1A-1A
1.
EQUIPMENT DIMENSIONS
The TRACER 4305 unit is 19” W, 10.5” D, and 1.75” H, weighs 7 lbs, and can be used in rack-mount
configurations.
configurations.
2.
POWER REQUIREMENTS
The TRACER 4305 system has a maximum power consumption of 25W and a maximum current draw of
1.2A (at 21 VDC).
1.2A (at 21 VDC).
3.
REVIEWING THE FRONT PANEL DESIGN
The front panel contains a single control switch for activating a DS3 line loopback, RSSI and TX PWR
monitoring interfaces, a GND interface for connecting the TRACER 4305 system to an external grounding
source, and status LEDs to provide visual information about the TRACER 4305 system. Figure 1 identifies
the DS3 loopback switch, the various bantam interfaces, and the LEDs.
monitoring interfaces, a GND interface for connecting the TRACER 4305 system to an external grounding
source, and status LEDs to provide visual information about the TRACER 4305 system. Figure 1 identifies
the DS3 loopback switch, the various bantam interfaces, and the LEDs.
Figure 1. TRACER 4305 Front Panel Layout
RSSI Monitoring Interface
The RSSI voltage is a function of the signal strength at the receiver and is used to measure the received
signal strength. RSSI varies approximately from 0 to greater than 4 Volts (V), with 0V corresponding to a
weaker received signal and 4V or better corresponding to a stronger received signal.
signal strength. RSSI varies approximately from 0 to greater than 4 Volts (V), with 0V corresponding to a
weaker received signal and 4V or better corresponding to a stronger received signal.
The voltage level present at the RSSI test point represents only a relative signal level of
receive strength from the far end. No direct correlation can be made between RSSI voltage
levels and actual receive levels in dBm. This test point is provided to assess relative signal
level for alignment of antennas.
receive strength from the far end. No direct correlation can be made between RSSI voltage
levels and actual receive levels in dBm. This test point is provided to assess relative signal
level for alignment of antennas.
Status LEDs
TX PWR
RSSI
DS3 Loopback
Switch
GND