Agilent Technologies N1911A Programming Manual page 773

*IDN?
The *IDN? query allows the power meter to identify itself. The string
returned is either:
Agilent Technologies,N1911A,<serial number>,A1.XX.YY
Agilent Technologies,N1912A,<serial number>,A2.XX.YY
where:
• <serial number> uniquely identifies each power meter.
• A1.XX.YY and A2.XX.YY represents the firmware revision with XX
Syntax
N1911A/1912A P-Series Power Meters Programming Guide
and YY representing the major and minor revisions respectively.
?
*IDN
IEEE 488.2 Command Reference 17
745