Rohde & Schwarz SMIQ02B - Page 88

SMIQ Rear Panel
1125.5555.03 2.19 E-7
15
BER
Interface for BER Test See as well chapter 2,
section "External Modu-
lation Source AMIQ" and
"Bit Error Rate Test"
16
RS 232
RS-232 RS-232 interface,
used for software update, the loading of
calibration data, and remote control. The
pin assignment corresponds to the pin
assignment of a PC.
see as well
Chapter 3
Remote Control
and
Annex A
"Interfaces"
17
IEC625 IEEE488
IEC 625 IEC-Bus (IEEE 488)
IEEE 488 Remote-control interface
See as well
Chapter 3,
"Remote Control"
18
REF
REF Output of the internal 10-MHz reference
signal with reference internal.
Source resistance 50 Ω.
Input for external reference frequency with
reference external. Adjustable to external
reference frequencies from 1 to 16 MHz in
1-MHz steps.
Input resistance 200 Ω.
See as well
Chapter 2,
Section
"Reference Frequency
int/ext"
19
4 optional cut-outs, provided for further
connections