Operating wavelength
(nm)
1550±10
Optional
Output power
(dBm)
2×7
1×5,1×6,1×7,
1×9,2×5,2×6,2×9
Return loss
(dB)
≥50
Optical fiber connector
SC/APC
Optional LC/APC,FC/APC
Bandwidth
（MHz）
45-862
Input level
（dBmV）
23±5
AGC
Flatness
（dB）
≤±0.75
45~862MHz
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Optic
Parameters
RF
Parameters
QCE-1550E
1550nm External Modulation Optical Transmitter
1. Features
◆ Key components External modulator and laser from the United States or Japan.
◆ Perfect pre-distortion circuit ensures the best CTB and CSO when the CNR is in high
standard.
◆ Perfect SBS suppress circuit and adjustable SBS in 13,16, 18，suitable for different types of
CATV net
◆ AGC,MGC control
◆ Double power supply switched automatically
◆ Casing temperature control automatically
◆ SNMP management system
◆ Microprocessor software has the function of laser monitoring, parameter display, fault
warning, network management and so on. If the working parameter of the laser goes out of the
fixed value of the software, the machine will warn.
◆ RJ45 and RS232 standard interface
2. Technical parameters
Items
Parameter
Remark
Return loss
Input Impedance
Channels
CNR
CTB
CSO
SBS
NM interface
Power
Power consumption
Working Temp
Storage Temp
Operating relative humidity
Size
（dB）
（Ω）
75
PAL-D/60ch
（dB）
≥52
65Km fiber，Receive0dBm
（dB）
≤-65
（dB）
≤-65
(dB)
≥16.0
13,16,18
RJ45，R232
（V）
90～265
Optional -48VDC
(W)
≤50
（℃）
0～50
Automatically casing temp control
（℃）
-20～85
(%)
5~95
(")
19×14.5×1.75
(W)x(D)x(H)
Link
Parameters
General
Parameters
Quality Cable & Electronics, Inc.
＞16
45~750MHz
3. Products series
QCE-1550E -1×5
QCE-1550E -1×7
QCE-1550E -1×9
QCE-1550E -2×3
QCE-1550E -2×5
QCE-1550E -2×6
QCE-1550E -2×7
QCE-1550E -2×9
QCE-1550E -2×10
（one output，≥5dBm）
（one output，≥7dBm）
（one output，≥9dBm）
（two output，≥3dBm）
（two outputs，≥5dBm）
（two outputs，≥6dBm）
（two outputs，≥7dBm）
（two outputs，≥9dBm）
（two outputs，≥10dBm）
4. Precautions:
1）Before installation or operation of unit, please carefully go through the user’s manual
2）QCE-1550E Series External Modulation Optical Transmitter should be serviced only by
qualified persons.
3) Before proceeding with installation and/or operation of transmitter, please assure that
transmitter is well grounded.
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4. QCE-1550E Series External Modulation Optical Transmitter are Class III laser products.
Use of controls, adjustments, and procedures other than those specified herein may result
in hazardous laser radiation exposure.
Warranty Terms
QCE-1550E Series External Modulation Optical Transmitter are covered by TWO YEARS
LIMITED WARRANTY, which starts from the initial date of your purchase. We provide its
customer whole-life technical supports. If warranty is expired, repair service only charges parts
(if required). In the event that a unit must be returned for service, before returning the unit,
please be advised that:
1. Warranty mark pasted on the housing of unit must be in good conditions.
2. A clear and readable material describes model number, serial number and troubles
should be offered.
3. Please pack the unit in its original container. If the original container is no longer
available, please pack the unit in at least 3 inches of shock absorbing material.
4. Returned unit(s) must be prepaid and insured. COD and freight collect can not be
acceptable.
NOTE: we do not assume responsibility for damage caused by improper packing of returned unit(s).
The following situation is not covered by warranty:
1. The unit fails to perform because of operators’ faults.
2. Warranty mark is modified, damaged and/or removed.
3. Damage caused by Force Majeure.
4. The unit has been unauthorized alteration and/or repaired.
5. Other troubles caused by operators’ faults.
1780 NW 15th Avenue, Suite 400
Pompano Beach, FL 33069
Tel: (954) 978-8845 Fax: (954) 978-8831
Web: www.qualitycable.com Email: Sales@qce.cc
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