Perle IOLINK-PRO IOLINK-520 Reference Manual page 47

Event Logs
LCP X establishing
Generated when the Link Control Protocol of a PPP link or remote site is establishing between this device
and the remote site PPP device.
LCP X no reply to Y Echo-Requests
Generated just prior to a link going down. The link or remote site has gone down due to no replies to the
echo request messages sent.
LCP X operational
Generated when the Link Control Protocol of a PPP link or remote site has been negotiated and is now
operational between this device and the remote site PPP device.
LCP X peer authenticating with CHAP
Generated when the peer (remote) device is using CHAP to authenticate this device.
LCP X peer authenticating with PAP
Generated when the peer (remote) device is using PAP to authenticate this device.
LCP X received Protocol-Reject for <protocol>
Generated when the peer (remote) device rejects one of the Network Control Protocols.
Link X - CSU/DSU Digital Loopback Results [Total: X] [Good: X] [Errors: X]
Generated after the CSU/DSU link module has completed a digital loopback test.
Link X - CSU/DSU Remote Loopback Results [Total: X] [Good: X] [Errors: X]
Generated after the CSU/DSU link module has completed a remote loopback test.
Link X - CSU/DSU Self Test Results [Total: X] [Good: X] [Errors: X]
Generated after the CSU/DSU link module has completed a self test.
Link X CSU/DSU: Connected
Generated when the CSU/DSU link module has established a connection to the remote partner CSU/DSU.
Link X CSU/DSU: Initialized
Generated when the CSU/DSU link module has completed initialization and has established
communications with the IOLINK router.
Link X CSU/DSU: Line ERROR
Generated when the CSU/DSU link module is in an unknown error state.
Link X CSU/DSU: Loopback Ended
Generated after the CSU/DSU link module completes a loopback test.
A.4 — IOLINK-PRO & 520 Reference Manual