Raymar 14.4 Installation, Operation & Diagnostics - page 26
0049-0300-XXX MIU/Power Port Series – USER GUIDE
08/04/2010
Rev. A
Page 22 of 26
ADDITIONAL TEST / DIAGNOSTICS COMMANDS
%L
RECEIVED SIGNAL LEVEL
Returns a value (-dBm) which indicates the received signal level at modem DATA PUMP
interface. This value is determined by the loss/gain of modem Telco Interface circuit ±dB at the
Tip/Ring input to the modem. Typical value should be -25dBm to -35dBm for most Telco
connections.
%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?
0
Normal hang up; no error occurred.
4
Physical carrier loss. (Loss of Carrier)
5
Feature negotiation failed to detect presence of another V.42 error-control modem at other end.
6
Other error-control modem did not respond to feature negotiation message sent by this modem.
7
Other modem is synchronous-only; this modem is asynchronous-only.
8
Modems could not find a common framing technique.
9
Modems could not find a protocol in common.
10
Feature negotiation message sent by other modem incorrect.
11
Synchronous information (data of flags) not received from other modem.
12
Normal disconnect initiated by other modem.