RS-232 Interface
A bi-directional interface is available for remote controlling. A D-Sub
connector (9-pin, female) is located at the back panel of the LISN; the
communication with a computer according to the RS-232 standard is
supported.
Pin
2
3
5
9
The standard voltage level at the Tx, Rx terminals is ±12 Volts.
Interface configuration:
– 9600 baud
– 8 data bits
– 2 stop bits
– no hardware protocol
RS-232 Commands
The LISN interprets the following remote control commands.
Please consider the lower/upper case letters.
Command Function
R
O
P
p
N
n
L
l
Setting into operation
Read the operator's manual before setting up the HM6050-2!
Only qualified personnel are allowed to set up the LISN for operation.
HM6050-2 has been designed in conformity to regulations VDE 9876
and CISPR Publ. 16. The leakage current of the instrument exceeds the
allowed value of 0.5 mA
normally operating measurement instruments. Thus, the safety
requirements have to be accomplished by additional provisions
28
Tx Data (data from LISN to computer)
Rx Data (data from computer to LISN)
Ground
+5V supply voltage for external devices (max. 30 mA).
Remote control enabled
Local control
Protect. ground line sim. circuit on PE LED lit
Protect. ground line sim. circuit off
(bypass)
EMC test signal of line N
EMC test signal of line L1
Transient Limiter off
Transient Limiter activated
as defined in IEC 348 and VDE 411 for
eff
Indication
RM LED lit
RM LED dark
PE LED dark
N LED lit
L1 LED lit
OFF LED blinking
OFF LED dark
Subject to change without notice