User Manual DEV 7xxx Optribution® Modules
6
Copyright DEV Systemtechnik GmbH 2012-2017
3.1.1
Optical Transmitter Modules DEV 72xx
D E V 7 2 4 1
B a s ic T w in
O p trib u tio n T ra n s m itte r
D E V 7 2 3 2
A d v a n c e d
O p trib u tio n T ra n s m itte r
D E V 7 2 3 3
T o p P e rfo rm a n c e
O p trib u tio n T ra n s m itte r
D E V 7 2 3 1
B a s ic
O p trib u tio n T ra n s m itte r
1 A /1 B O p tic a l O u tp u t A /B
2 A /2 B R F L E D A /B
3 A /3 B B ia s L E D A /B
1 O p tic a l O u tp u t
2 R F L E D
3 B ia s L E D
4 O p tic a l M o n ito r L E D
5 B ia s B u tto n
6 M o n ito r P o rt
1 O p tic a l O u tp u t
2 R F L E D
3 B ia s L E D
L -B a n d T x
B ia s
R F
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2 A
2 B
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2
3
5
1 A
3 A
1 B
3 B
1 O p tic a l O u tp u t
2 R F L E D
4 O p tic a l M o n ito r L E D
6 M o n ito r P o rt
D E V 7 2 3 8
U H F /V H F
O p trib u tio n T ra n s m itte r
O p t.
R F
M o n
C A T V -B a n d T x
L
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6
D E V 7 2 5 1
D W D M
O p trib u tio n T ra n s m itte r
1 O p tic a l O u tp u t
2 R F L E D
3 B ia s L E D
4 O p tic a l M o n ito r L E D
5 B ia s B u tto n
6 M o n ito r P o rt
O p t.
R F
B ia s
B ia s
M o n
L -B a n d T x
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6
1
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2
3
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C H 6 3
D E V 7 2 4 4
O p trib u tio n T ra n s m itte r
1 0 M H z , 7 0 0 ...2 3 0 0 M H z
1 O p tic a l O u tp u t
2 a R F L E D L -B a n d
2 b R F L E D 1 0 M H z
3 B ia s L E D
4 O p tic a l M o n ito r L E D
O p t.
B ia s
R F
R F
L -B a n d
1 0 M H z
T x
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3
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1
2 a
2 b
All optical transmitter modules are plug-in modules and cover different frequency
ranges. The DEV 7231, DEV 7232, DEV 7233, DEV 7241, and the DEV 7251 are
designed for the (extended) L-Band. The DEV 7238 is intended for UHF/VHF signals;
and the DEV 7244 provides two laser diodes, one for a 10 MHz reference signal and
the other for extended L-Band signals.
The connector type for the optical output(s) (
1
) is SC/APC by default, but can be
ordered as FC/APC (Option 07) or as E2000 HRL (Option 08), instead.
To realize CWDM applications, wavelength options are available for the optical
transmitter modules DEV 7232 (one option), DEV 7233 (nine options), and
DEV 7238 (nine options). The DEV 7251 optical transmitter module for DWDM
applications is available with 49 different wavelength options. For details on the
wavelength options, please refer to the corresponding spec sheets.
With the integrated RF level monitoring functionality of the optical transmitter
modules, the aggregated power level of the RF signal before the electrical/optical
conversion is measured and compared with an adjustable threshold. If the RF signal
is below the threshold level, an event is generated. The status is indicated via the
"
RF
" LED(s) [(
2
): green means ok, red indicates the signal level to be below the RF
threshold level] and additionally via Web Interface and via SNMP, given that the
applied Optribution® chassis provides these features.