ADTRAN 2 x E1 user manual Name Function, Non-volatile Memory

61280004L2-1C

Section 1 TRACER Description

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.
	E1 interfaces will transmit UA1 on the affected E1 to indicate an error.
RF Low	Red if the received RF carrier level is below -80 dBm.

The controls available from the control panel are listed below.

Name	Function
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

NOTE

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	Chipping code (if set from VT100)
Password	Password enabling
Site name	E1 line coding (if set from VT100)
E1 framing (if set from VT100)

TRACER 2 X E1 User’s Manual 7