CANOGA PERKINS 2461 E1 Modem - Manual (Page 44)

EdgeAccess Universal Chassis System
2461 Modem User Manual 5-2
2. This screen reports the number of link errors for both the local and remote modems. Errors
counted here listed below:
• Composite LOS Errors
• Electrical LOS Errors
• Electrical AIS Errors
• SQL Primary Errors
• Optical Transmit Errors
• SQL Secondary Errors
• Link Self Test Errors
• Link Self Test LOS
To determine the number of errors, reset the errors to zero and allow errors to accumulate,
helping you determine which modem or link has a problem.
To reset the error counter, press Tab, then enter, as indicated on the screen.
5.3 Stand Alone Modem Diagnostic Tools
The 2461 rack mount modem has no panel switches for loopbacks. All loopback tests are
controlled via software. The stand alone modem, however, does have a limited set of hardware-
controlled loopbacks that are on the front panel. On the front of the 2461 stand alone modem,
near the right center, note the switch labeled loopback. It has three positions, Local, Off, and
Remote.
Loc: Sets a loopback test on the local modem
Off: Loopback tests are off
Rem: Sets a loopback on the remote modem
The 2461 stand alone modem also provides the same set of software-controlled loopback tests
available on the rack mounted modem.
Figure 32. The Stand Alone 2461 modem