CMU  Front and Rear View 
1100.4903.12 1.5  E-10 
0
12
3
45
6
78
9
.
-
ON / OFF ENTER
1100.0008.02
VARIATION
DATA
FUNCTION SYSTEM
CONTROL
DATA
CTRL
MENU
SELECT
HE LP SETUP
mark
symb
E
F
B
M/µ
µV
W
C
dBµV
k/m
G/n
A
mV
D
1
dB
dBm
UNIT...
EXP/CMP CONT/HALT
RF4 IN
*
abc def
ghi
jkl mno
pqr
stu
vwx yz
_ µ 
AF IN AF OUT
VOL
DEL
AUTO
INFO RESET
PRINT
*
#
Ω
AUX 1 AUX 2
SPEECH
AUX 3
DATA 2
13 dBm
MAX
2 W
MAX
50 W
MAX
13 dBm
MAX
RF 3 OUT
RF 2 RF 1
DATA 1
INS
CLR
For future extensions
Signals from/to
speech codec 
(option CMU-B52)
Auxiliary input/output
AUX3
AF inputs and outputs
 
Fig. 1-5  CMU front view connectors 
 
DATA1, DATA2 
 
DATA 1
 
DATA 2
 
For future extensions 
 
!
 
 
Chapter 8, "Hard-
ware connectors"
 
AUX 3 and SPEECH 
 
AUX 3
 
Input/output for timing and external trigger signal 
CMU300:  External trigger signal for 
 wired synchronization 
!
 
 
Chapter 8, "Hard-
ware connectors "
SPEECH
 
Signals from/to speech codec (option CMU-B52) 
!
 
 
Chapter 8, "Hard-
ware connectors"
 
AF connectors 
 
AF IN AF OUT
AUX 1 AUX 2
 
Connectors for audio signals: 
AUX1/2  Additional input/output for audio sig-
nals that may be used in remote con-
trol (secondary audio analyzer) 
AF IN/OUT  Standard input/output for the (primary) 
audio analyzer 
Caution: Note the maximum permissible input levels 
for all AF connectors according to the data sheet in 
order to prevent damage to the instrument! 
!
 
Chapter 4, "Audio 
Generator and 
Analyzer"; 
Chapter 8, "Hard-
ware connectors"