Front and Rear View  CMU 
1100.4903.12 1.2  E-10 
0
12
3
4
5
6
78
9
.
-
ON / OFF
ENTER
1100.0008.02
VARIATION
DATA
FUNCTION SYSTEM
CONTROL
DATA
CTRL
MENU
SELECT
HEL P 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
Data input
Selection of the most important
CMU functions via menus
Loudspeaker, for 
future extensions
PCMCIA interface
as an alternative:
Floppy disk drive
(option CMU-U61)
 
Fig. 1-2  CMU front view – hardkeys 
 
FUNCTION 
 
FUNCTION
DATA CTRL
MENU
SELECT
 
Preselection of the menus: 
MENU SELECT Menu selection 
DATA  File manager  
CTRL  For future extensions  
!
 
 
Chap. 3
Chap. 4
 
 
DATA 
 
0
12
3
45
6
78
9
.
-
ON / OFF ENTER
DATA
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
*
abc def
ghi
jkl mno
pqr
stu
vwx yz
_ µ 
*
#
Ω
 
Data input: 
0 ... 9  Numerical input (letters for string editors) 
* . E  Special characters, dec. point, hex value "E" 
# - F  Spec. characters, sign change, hex value "F" 
G/n mV A Factor 10
9
/10
-9
, unit, hex value "A" 
M/
µ
 
µ
V W Factor 10
6
/10
-6
, unit, hex value "B" 
k/m dB 
µ
V Factor 10
3
/10
-3
, unit, hex value "C" 
*1 dBm dB Factor 10
0
, unit, hex value "D" 
ON / OFF  Switching on/off editors/measurements 
EXP/COMP   
ENTER  Confirmation of entry in editors 
CONT/HALT  Calling/quitting editors,  
  measurement control  
UNIT 
"
  For future extensions 
!
 
 
Chap. 3