![](/images/new-backgrounds/1188291/18829157x1.webp)
ADDITIONAL TEST / DIAGNOSTICS COMMANDS...
%L RECEIVED SIGNAL LEVEL
Returns a value
%Q RECEIVED LINE SIGNAL QUALITY
Reports the line signal quality at the modem DATA PUMP interface. This signal is also dependent on the DAA circuit (Telco Interface). Returns the higher order byte of the EQM (Eye Quality Monitor is the filter squared magnitude of the error vector). Typical value should be below 10. The lower the number, the better the performance from the modem.
ERROR response if NO connection to remote modem.
In &T1, modem %Q will be 0.
S86 CONNECTION FAILURE CAUSE
S86 can help determine the cause of a connection failure. When the modem issues a NO CARRIER result code, a value is written to this register. To read this register, following the connection failure, issue ATS86? <CR>. The modem will report one of the following values...
MIU Installation, Operation & Diagnostics Edition: January 25, 1999 | Page 27 |