User's Manual

Table Of Contents
86 Link CX User Manual, Version A
7-2 Using the Link CX LEDs
Link CX operation can be monitored using the LEDs. The LEDs show general radio link status at a
glance. See Figure 1-3 for LED locations on the Link CX radio. The LEDs operate in the following modes.
7-3 Using RSSI
When you connect a voltmeter with BNC adapter to the Link CX RSSI port, you can measure an
indication of the received RF signal level. When the Receive Level falls below -70 dBm, see Table 7-1 for
a list of possible causes.
7-4 Using a Web Browser
As described in Appendix 3, most of the Link CX configuring, operating, and maintenance are
performed using the Link CX Web pages. Use the error indications in the web server interface and
Table 7-1 to troubleshoot alarm indications.
Table 7-2 LEDs and Alarm Indication Modes
LED Normal State Alarm State
PWR/LCL ALM ON -- Power on and no alarm
Flashing -- Local alarm
OFF -- Power off
RF LINK ON -- Receive RF OK OFF -- Receive radio link alarm
DATA ON -- DS-3 input OK OFF -- DS-3 input LOS
ENET 2
ON -- Ethernet input OK
Flashing -- Receiving Ethernet data
OFF -- No Ethernet input
ENET 1
ON -- Ethernet input OK
Flashing -- Receiving Ethernet data
OFF -- No Ethernet input
Make sure you replace the Link CX RSSI connector cover when done
troubleshooting the radio link.