Very flexible forward/return optical transmitter
platform
(1310nm, 1550nm, CWDM and DWDM variants with
different optical output power)
Extremely broad
frequency ranges
Optical wavelength fine tuning
by software
Optical output level software configurable
RF
gain and RF slope software configurable
AGC
option software configurable
Main and coupled
input port, test points at input and output
of internal RF amplification
with OMI/optical power indication
CSO compensation,
chirp compensation and SBS suppression circuitry
Various
optical connectors (SC/APC 8°,
SC/APC 9°, E2000…) and RF connectors
(IEC, F)
Standby mode with reduced power consumption
Network
management interface
Available Types
S
Type
D
Type
X Type
OTXD1310S03
OTXDDW22L08 … DW47L08,
OTXDDW22L11 … DW47L11
OTXD1310X08,
OTXD1310X11,
OTXD1310X13
OTXD1550S03
OTXD1550X06
OTXDCW11S03 … CW18S03
Technical
Data
OTXDyyyyZnn
Mnemonic
Wavelength
yyyy
1310
and 1550 (given in nm)
CWmm – CWDM laser (ITU grid channel number mm)
DWmm – DWDM laser (ITU grid channel number mm)
Type
Z
S – standard
(uncooled) laser for return path applications
L – linear (cooled) laser for forward path applications
X – extremely linear (cooled) laser for broadcast
applications
Optical
output power nn
nn
denotes output power in dBm
General
Performance Data
S
Type
L
Type
X
Type
Frequency
range
5
... 450 MHz
5
... 1000 MHz
5
... 1000 MHz
Input
level (OMI = 5%)
79
dBµV minimum
(93 dBµV minimum for coupled input)
Gain
adjustment
0 … 24
dB
Slope
adjustment
-2
(cable equivalent) … +16 dB (cable equalization)
Impedance
75
W
RF
return loss
> 20
dB (at 47 MHz) - 1.5 dB/oct, min. 15 dB
>
18 dB for 5 … 65 MHz
Testpoint
TP1 attenuation
20
dB
Testpoint
TP2 (AC voltage for RF signal and
DC voltage for optical
output power indication)
80
dBµV+2ΔPopt ± 2.0 dB
at OMI = 5% (AC)
0.1 V/mW ± 0.02 V/mW (DC)
Optical
output power adjustment
0 … -3
dB
Output
power tolerance
±1.0
dB
±0.5
dB
±0.5
dB
Optical
wavelength fine tuning
-100…+100
GHz
Optical
return loss
> 35
dB
> 45
dB
> 45
dB
Power
consumption
(Power consumption in standby mode)
≤ 8
W
(≤ 2 W)
≤ 12
W
(≤ 4 W)
≤ 12
W
(≤ 4 W)
Dimensions
of BK equipment practice
Module
width 1
Weight
~1.3
kg
Transmission
Performance Data
S
Type
L
Type
X
Type
CNR
*)
≥ 51 dB
1310nm: ≥51.5dBc
1550nm: ≥ 51dBc
CSO
*)
fiber length (chirp) compensation adjustment
set to 10 km
-
1550nm: ≥46dBc
1310nm: ≥66dBc
1550nm: ≥50dBc+)
CTB
*)
-
1550nm: ≥58dBc
1310nm
:≥66dBc
1550nm: ≥62dBc
IM2
#)
≥ 46 dBc
IM3
#)
≥ 54 dBc
Safety,
EMC, Environmental Conditions
Safety
EN
50 083-1 and EN 60 950
Laser Class 1M acc. IEC 60 825 (eyesafe for normal viewing)
EMC
EN
50 083-2
Equipment
operation environmental conditions
Class
3.1 acc. ETS 300 019-1-3 (temperature contr. loc.)
*)
Cenelec
42 channel allocation [15] with OMI = 4%, 20km non-dispersion
shifted fiber and optical receiver with Popt,in=0 dBm
and Ieq=7.0 pA/√Hz used
+)
When only frequencies up to 600 MHz
are measured, value is 6dB better!
#)
two-tone
with OMI = 20% per carrier, no fiber, opt. receiver
with Popt,in=0 dBm and Ieq=7.0 pA/√Hz
used
BKtel communications GmbH - www.bktel.com - E-Mail: info@bktel.com Specifications subject to change
without notice
1570BB
