User Manual

Section 3, Engineering Guidelines TRACER 4206 System Manual
24 © 2002 ADTRAN, Inc. 612804206L1-1A
1. EQUIPMENT DIMENSIONS
The TRACER 4206 unit is 19” W, 10.5” D, and 1.75” H, weighs 7 lbs, and can be used in rack-mount
configurations.
2. POWER REQUIREMENTS
The TRACER 4206 system has a maximum power consumption of 25W and a maximum current draw of
1.2A (at 21 VDC).
3. REVIEWING THE FRONT PANEL DESIGN
The front panel contains RSSI and TX PWR monitoring interfaces, a GND interface for reference with the
monitoring interfaces, and status LEDs to provide visual information about the TRACER 4206 system.
Figure 1 identifies the various bantam interfaces and the LEDs.
Figure 1. TRACER 4206 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.
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.
ALARM
T1A T1B T1C T1D
TRACER 4206
Status LEDs
TX PWR
RSSI
GND