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The LEDs that indicate error conditions in the spread spectrum data pump and RFC are listed below.
All of these LEDs are visible through the front panel. Any one of these LEDs indicates an error condition
that precludes system operation.
Link Down .............. Red if the RF link is not operational.
RF Low ................... Red if the received RF carrier level is below -80 dBm.
The controls available from the control panel are listed below.
Name
Reset ........................ Reset the system
LBK ......................... Toggles E1 between normal and local line loopback modes
CAS ......................... Selects Channel Associated Signaling
CCS ......................... Selects Common Channel Signaling
HDB3 ...................... Selects HDB3 Line Coding
AMI ......................... Selects AMI Line Coding
Remote Test ............ Initiate a remote test across the RF link
TX Power ................ Adjusts transmit power level up and down
The monitor points provided on the front panel of the system are described below.
RSSI ........................ DC voltage indicating strength of the received signal at the antenna
GND ........................ System ground
The voltage level present at the RSSI test point represents a relative signal level of receive strength
from the far end. No direct correlation can be made between RSSI voltage level and actual receive
level in dBm. This test point is provided to assess relative signal level for alignment of antennae.
Non-volatile Memory
The TRACER system contains non-volatile memory to retain certain configuration settings. These
settings include:
Frequency plan
Password
Site name
E1 framing (if set from VT100)
TRACER 2 X E1 User's Manual
E1 interfaces will transmit UA1 on the affected E1 to indicate an error.
Function
NOTE
Section 1 TRACER Description
Chipping code (if set from VT100)
Password enabling
E1 line coding (if set from VT100)
61280004L2-1C
7
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