SME Front Panel
1038.6002.02 2.11 E-13
2.1.1.3 Inputs/Outputs
(Cf. Fig. 2-1, C Front panel view, Inputs/Outputs)
4
EXT 2
RF 50 W
EXT 1
CLOCK
DA TA
LF
DATA Input external data signal for digital
modulation. Input resistance 1 k
Ω
,
TTL-level.
Output* data signal with operating
mode internal. Level: TTL
CLOCK Input* external clock-pulse signal for
digital modulation. Input resistance
1 k
Ω
, TTL-level.
Output* clock-pulse signal with
operating mode internal. Level:TTL
EXT1 Input external modulation signal,
alternatively for AM or FM (PM).
Input resistance
>
100 k
Ω
.
Nominal voltage: U
s
= 1 V
Max. permissible overvoltage:
±
15 V
EXT2 Input external modulation signal for
FM (PM).
Input resistance
>
100 k
Ω
.
Nominal voltage: U
s
= 1 V
max. permissible overvoltage:
±
15 V
LF Output** LF signal of the internal LF-
generators LF Gen 1 and LF Gen 2.
Source resistance
<
10
Ω
.
RF Output RF signal.
Source resistance 50
Ω
See as well
Section 2.6.3,
Digital Modulation
Section 2.6.3,.
Digital Modulation
Section 2.7,
LF outputs
Section 2.2.2.6,
Use of
[
ON/OFF
]
and
[
MOD ON/OFF
]
Key
* When fitted with option DM-Coder, SME-B11
** Options: SM-B2, SM-B6
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