User Guide: Technical Reference
SECTION 2
ioLink 4
SYSTEM COMPONENTS
PRELIMINARY
Customer Support (202) 333-7031
2-9
Once the installation is complete, power on the
ioLink
system to verify correct installation. Once you
power the modem unit, it should cycle through the light emitting diodes (LEDs) and show the following on
the LCD screen.
2.7.2 LCD Screen Cycling
Figure 2-6. Liquid Crystal Display (LCD) Screen Cycling
After about 10-20 seconds, the “Pwr,” “RX,” and “TX” green LEDs should be on and the LCD should
present the Signal Level display. The Signal Level should be above 40%. If these conditions exist, then
communication over the link should be possible.
If the red “RF” LED and/or the red “Alm” LED are on, or the Customer Premise Equipment (CPE) cannot
communicate with the other end of the link, there is a problem somewhere in the system. If the Modem
unit does not show the characteristics of normal operation, see Troubleshooting, Section 5, for help in
diagnosing and correcting the problem.
2.8
Advanced Features
The
ioLink 4
system also contains several unique features that result in superior operation:
•
Performance
monitoring
•
Diagnostic
testing
•
The ability to place multiple units in the same area without interference.
These features allow the user to keep the link up and running with little effort while giving the user a
powerful set of diagnostics and monitors to detect or troubleshoot any potential problems.
2.8.1 Performance
Monitoring
Performance monitoring is an important quality control tool. The various statistics the user may obtain
from the LCD menus or via a PC tell you how well the system is performing. Even though the link is
ioLink 4
Serial init.
ioLink 4
LIU init.
ioLink 4
BB init.
