RLWE 4161
Safety/ Operating
Instructions - Technical Data
4-Channel Fiber-optic Pulse Receiver
Main Features
Four fiber-optic input channels
(receiver) with two TTL and two NIM
signal output domains
Fiber-optic signals into FSMA
receptacles for 62,5 µm mono mode
fibers
Maximal pulse input frequency
>100 MHz
Low phase noise of output signals
Impedance of all electrical outputs
50 Ω
Indicators for output signals (LED)
Important notes which need to be respected are indicated by
exclamation marks in this operating manual.
1. Intented use and properties
The four channel fiber-optic pulse receiver RLWE 4161 is appropriated for a nonreactive fan
out of four optical pulse signals into eight synchronous TTL and NIM output signals.
This device is designed for operation with optical signal sources transmitting at nominal
850 nm wave length. At rear side of this product input signals can be coupled into the device
via FSMA fiber cable receptacles. There are four 50 Ω output signal domains. CH1 and CH3
with four TTL signal outputs each and two further output domains (CH2 and CH4) for four NIM
output signals which can be used in parallel. Optical channels 1 and 2 and channels 3 and 4
resp. can be connected to the electrical output channels CH1 and CH2 ans CH3 and CH4
resp. optionally straight forward or crossed-over. TTL channels as well as NIM channels
provide three non-inverting outputs and one inverting output.
This device is supplied by an internal power supply which is operated by means of mains
voltages in the range of 100 VAC bis 240 VAC.
The 4-channel pulse divider RLWE 4161 is for indoor use only!
RADIOCON, owner W. Kern, Bamberger Str. 7, D-01187 Dresden, Germany
T +49 351 32 33 549, E radiocon@radiocon.de, www.radiocon.de
page
Data sheet 31S0009A
1 (9)
Safety/ Operating Instructions - Technical Data RLWE 4161
2. Safety instructions
Applications different from intended use described before are not allowed. They could damage
this device and could cause hazards like electrical shortcuts, fire, electrical strokes or similar
risks.
The entire device must neither be changed nor rebuilt. Safety instructions of this manual have
to be respected.
Please read this operating manual carefully and keep it tucked safely away for later
questions to be clarified.
For damages caused by disregard of this operating manual guarantee is voided! For
consequential, property damages or harm to persons caused by disregard of this operating
manual by not intentioned usage we do not assume deficiency liability!
• For safety and certification reasons any rebuilding or changing of this product by user
is not allowed.
• Respect also safety instructions and operating manuals of devices which are
connected to this product.
• This device shall treated carefully and shall not be dropped down because this product
could be damaged by impacts or by falls from low levels.
• This product shall neither exposed to extreme temperatures nor to humidity.
• This device is designed for indoor use only, especially in laboratories and has no spray
water protection.
• In case there is no safe operation possible anymore take this device out of operation!
Safe operation is not guaranteed anymore at:
- visible damages,
- malfunctions,
- storage at environmental conditions exceeding specifications of this product over a
longer time or
- after improper transportation stress.
• Maintenance, adoption and repair shall only be executed by trained personnel. Please
contact RADIOCON for service.
• In case there are additional questions which are not answered in this manual do not
hesitate to contact:
RADIOCON, W. Kern
Bamberger Straße 7
D-01187 Dresden, Germany
E radiocon@radiocon.de
RADIOCON, owner W. Kern, Bamberger Str. 7, D-01187 Dresden, Germany
T +49 351 32 33 549, E radiocon@radiocon.de, www.radiocon.de
page
Data sheet 31S0009A
2 (9)
Safety/ Operating Instructions - Technical Data RLWE 4161
3. Operation
Figure 1: Signal outputs of 4-channel fiber-optic pulse receiver RLWE 4161
Figure 2: Operating an indication elements on front panel of RLWE 4161
Figure 3: Interfaces on device rear side of RLWE 4161 with four fiber-optic inputs
RADIOCON, owner W. Kern, Bamberger Str. 7, D-01187 Dresden, Germany
T +49 351 32 33 549, E radiocon@radiocon.de, www.radiocon.de
page
Data sheet 31S0009A
3 (9)
3
4
2
1
7
8
10
14
13
9
5
6
12
11
15
16
Safety/ Operating Instructions - Technical Data RLWE 4161
1-4 Output channels CH1 to CH4 of fiber-optic pulse receiver RLWE 4161
5 TTL output receptacles
6 Indication for straight forward signal throughput: optical input channel i to electrical output
channel i
7 Indication for crossed-over signal throughput: optical input channel i to electrical output
channel i+1 and optical input channel i+1 to electrical output channel i resp.
8 NIM output receptacles
9 TTL signal indicator
10 Inverting TTL output with marking „INV“
11 Toggle switch for straight forward and crossed-over signal mapping
12 NIM signal indicator
13 Inverting NIM output with marking „INV“
14 Operation indicator
15 Mains socket with mains power switch, mains fuses and mains EMC filter
16 Four FSMA receptacles of fiber-optic input signals of channels 1 to 4
RADIOCON, owner W. Kern, Bamberger Str. 7, D-01187 Dresden, Germany
T +49 351 32 33 549, E radiocon@radiocon.de, www.radiocon.de
page
Data sheet 31S0009A
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Safety/ Operating Instructions - Technical Data RLWE 4161
Start-up
• Power supply
• Power on → indication
After connecting mains cable into RLWE 4161 the device is switched on by power
switch (14) on rear side. Refer also Figure 3. During operation of RLWE 4161 the
yellow indicator (13) is glowing.
Usage of signal channels CH1 to CH4
• There is a usage of all optical and electrical pulse signal channels at the same time in
parallel possible.
• On front panel there are channel CH1 and channel CH3 each with three non-inverting
(5) and one inverting (10, marked by “INV”) TTL signal outputs available.
• At channel CH2 and channel CH4 there are three non-inverting (8) and one inverting
(12, marked by „INV“) available to use in parallel.
• Optical signal inputs deposited on rear side of RLWE 4161 can be used in parallel.
They can be connected pairwise to TTL and NIM outputs resp. By means of toggle
switch (11) in position “||” it is possible to map optical inputs 1 and 2 to electrical
outputs CH1 and CH2. In position “X” of switch (11) the optical signal 1 is mapped to
output channel CH2 and the optical signal 2 is mapped to output channel 1 at the
same time (crossed-over mode). The identical scope of functions offer optical
channels 3 and 4 in conjunction with electrical output channels CH3 and CH4. This
way optical signal pairs 1, 2 and 3, 4 resp. can be converted optionally into TTL or NIM
signals. Activated mapping modes are indicated by red LEDs above (6) and (7) resp.
on front panel.
• As soon as a signal is available on a channel output the yellow signal LEDs (9) and
(12) resp. are glowing. In case there is no signal available these LEDs remain
deactivated.
Usage options at signal inputs of a channel
• Via three BNC receptacles (5) on channels CH1 and CH3 resp. there are 50 Ω outputs
for TTL signals available. The same TTL signal in inverted form is provided at each
right-hand output which is marked by “INV”.
• An analogue configuration is valid for NIM output channels CH2 and CH3. This means
also at output section (8) are three non-inverting and one inverting 50 Ω outputs for
NIM signals available. NIM stands for Nuclear Instrumentation Module Standard
and is implemented in this product according to the fast negative logic standard
version of DOE/ER-045T.
Mounting instructions for assembling into a 19“ rack
• Four elongated holes are available on right and left end of front panel of RLWE 4161
for fastening this unit in a 19” rack. Use IEC 60297 for further instructions.
RADIOCON, owner W. Kern, Bamberger Str. 7, D-01187 Dresden, Germany
T +49 351 32 33 549, E radiocon@radiocon.de, www.radiocon.de
page
Data sheet 31S0009A
5 (9)
Safety/ Operating Instructions - Technical Data RLWE 4161
4. Scope of delivery
– 1x Basic unit 4-channel fiber-optic pulse receiver RLWE 4161
– 1x Mains cable 230 VAC, 2 m
– 1x Operating manual
5. Technical characteristics
Parameter Min. Typ. Max. Unit Notes
Optical inputs
Input signal frequency (rectangular signal) >100 MHz
Budget of optical input power 8 15 dB
Type of input receptacles: FSMA (female)
TTL outputs
Output impedance 50 Ω
Output signal frequency >100 MHz
Output level
TTL output voltage Low 0 0.7 1 V
TTL output voltage High 1.8 2.8 4.8 V 2)
Output signal rising and falling slopes
(L-H and H-L)
<1 ns
Propagation delay between optical inputs and
TTL outputs <55 ns
Skewing between two outputs of a channel <1 ns
RMS additive-jitter at 13 MHz (1 Hz – 5 MHz)
<5
ps
Phase noise of outputs 5) 5)
Type of output receptacles: BNC (female)
NIM outputs
6)
Output impedance 50 Ω
Output signal frequency >100 MHz
Output level
NIM output voltage Low at 50 Ω load 0.05 V
NIM output voltage High at 50 Ω load -0.7 V
Output signal rising and falling slopes 1.5 ns 4)
RADIOCON, owner W. Kern, Bamberger Str. 7, D-01187 Dresden, Germany
T +49 351 32 33 549, E radiocon@radiocon.de, www.radiocon.de
page
Data sheet 31S0009A
6 (9)
Safety/ Operating Instructions - Technical Data RLWE 4161
Parameter Min. Typ. Max. Unit Notes
(L-H and H-L)
Propagation delay between optical inputs and
NIM outputs <55 ns
Skewing between two outputs of a channel <1 ns
RMS additive-jitter at 13 MHz (1 Hz – 5 MHz)
<5
ps
Phase noise of outputs 5) 5)
Type of output receptacles: LEMO (female)
General
Operating temperature range 0 40 °C
Storage temperature range -10 55 °C
Power supply:
Supply voltage 100 240 VAC
Supply voltage frequency 47 63 Hz
Power consumption 36 W
Fuses 2 x miniature fuse 5x20 mm, 1 A, 250 V, slow
Mechanical dimensions:
Width 483 mm
Heigth 44 mm
Depth 245 mm
Total weight 2 kg
Accessories:
1 x Mains cable, 2 m
Notes:
1) NA = 0.27, max. input power -24 dBm.
2) Typical at loed of 50 Ω. Maximum without load.
3) At 50 Ω.
4) Time difference between 10% and 90% of signal amplitude, test signal frequency 10 MHz.
5) Refer also diagrams in following figures.
6) NIM: Nuclear Instrumentation Module Standard, fast negative logic acc. to DOE/ER-045T
RADIOCON, owner W. Kern, Bamberger Str. 7, D-01187 Dresden, Germany
T +49 351 32 33 549, E radiocon@radiocon.de, www.radiocon.de
page
Data sheet 31S0009A
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Safety/ Operating Instructions - Technical Data RLWE 4161
Typical Phase noise of a 10 MHz test signals at RT
RADIOCON, owner W. Kern, Bamberger Str. 7, D-01187 Dresden, Germany
T +49 351 32 33 549, E radiocon@radiocon.de, www.radiocon.de
page
Data sheet 31S0009A
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Figure 4: Typical phase noise of RLWE 4161 on TTL channels
Figure 5: Typical phase noise of RLWE 4161 on NIM channels
Safety/ Operating Instructions - Technical Data RLWE 4161
6. Disposal
In the interest of our environment and for a complete recycling of material used for this product the
user is requested to submit used or damaged devices to qualified collecting points.
The sign of a crossed-out waste bin with wheels indicates that this product has to be submitted to a
collecting point for electrical scrap. This way the material of this product can by recycled professionally
and can be used best in a closed material cycle.
7. Order instructions
Product name: RLWE 4161
Order address: RADIOCON, W. Kern
Bamberger Straße 7
D-01187 Dresden
Germany
email radiocon@radiocon.de
Pulse and clock dividers also with customized device shapes with different digital input and output
definitions or as electrically isolated versions on request.
RADIOCON, owner W. Kern, Bamberger Str. 7, D-01187 Dresden, Germany
T +49 351 32 33 549, E radiocon@radiocon.de, www.radiocon.de
page
Data sheet 31S0009A
9 (9)
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