EXFO FVA-3150 Variable Attenuator - Manual (Page 60)

Controlling Your Variable Attenuator Remotely
54 FVA-3150
RS-232 Connector Pinout
RS-232 Connector Pinout
The RS-232 connector (serial port) at the back of the Variable Attenuator
uses a DTE pinout configuration.
–300 “Invalid Program Step.” The entered program step parameter is
out of range.
–300 “Invalid Program
Attenuation.”
The entered program attenuation
parameter is out of range.
–300 “Invalid CAL Factor.” The entered calibration factor
parameter is out of range.
–400 “Query Error.” An error occurred while accessing the
output queue.
–500 “System Error.” System is out of memory.
Pin Description Direction
2 Receive (Rx) Input
3 Transmit (Tx) Output
5 Signal ground (Gnd) —
Error
Number
Description Probable Cause
1 2 3 4 5
6 7 8 9