Transcript
A3422 XMTDR Digital Return Optical Transmitter Module The A3422 XMTDR digital return optical transmitter allows RF reverse path signals to be sent back to headend via a single fiber. The RF signal is routed to the input of the digital return transmitter via the optical interface module. A -20 dB test point on the transmitter is available for measuring RF signal levels to the laser. The drive level is adjusted with a plug-in pad. The transmitter is made of ADC/multiplexing circuit and a DFB laser with 1310 nm, 1550 nm or ITU-T CWDM wavelength. The return transmitter features multiple available wavelengths on the ITU-T standard grid, low distortion characteristics, low RIN noise, and high side mode suppression. The A3422 XMTDR laser transmitter converts the reverse path RF electrical signals into an optical form and launches the resulting optical signal into the fiber back to the HFC headend receiver.
Features •
DFB laser technology
•
High side mode suppression
•
ITU-T CWDM grid wavelengths
•
-20dB test point
•
Low distortion characteristics
•
Plug pad for adjusting RF drive level
•
Low RIN noise
Page 1 of 5
www.acicomms.com
Block Diagram
NET
RF T/P A
RF Status
DAC TDM De-Multiplexer
RF Input A
PIN
DAC
NET
RF Input B
RF T/P B
DC-DC Unit
Digital Diagnostics
RF Status
RF Status
μP Unit
DC Supply
Page 2 of 5
www.acicomms.com
Optical Output
Transmitter Module Layout
6 RF1 Drive Level Pad
7
3 RF1 Input Test Point
7 Transmitter Mounting Screw
1 Status LED
2 Digital Return SFP Module 6 RF2 Drive Level Pad
7 Transmitter Mounting Screw
4 RF2 Input Test Point
ACION 3422 XMTDR Optical Transmitter Module COMPONENT NAME
FUNCTION
NOTES
1
Status LED
Digital Return SFP Module, RF input, Power
2
Digital Return SFP Module
Digitize and transmit a single or two channels
3,4
RF Input Test Point
-20 dB test point for measuring RF drive level to laser
5,6
RF Drive Level Pad
Used to set the RF drive level to laser
Transmitter Mounting Screw
Mounts the optical transmitter to the housing
7
Page 3 of 5
www.acicomms.com
Specifications
ACI
A3422 XMTDR Digital Return Optical Transmitter Module
STATION PARAMETERS PARAMETERS
CONDITIONS
UNITS
SPECIFICATION
NOTES
Optical Specifications Laser type
FP, DFB or CWDM
Optical Connector
SC/APC(standard),
Optical return loss
Min.
dB
45
Optical output power
Min.
dBm
-5 (-5 to 0 typical) for DFB laser 0 (0 to 3 typical) for CWDM laser
Wavelength
1310 ± 20 nm ITU-T CWDM 1271 – 1611 nm
DFB or FP laser CWDM laser nm
1.5 (typical) 0.4 (typical) 0.4 (typical)
Ω
75
dB
-16
dBmV
Reference to Link Performance below
MHz
5 - 45
Other frequencies are available
Peak to Valley
dB
± 1.0
Link
Min.
dB
-3
Link
Directional coupler
dB
-20 ± 0.5
dBmV
57
Link gain
dB
-10.5 (typical)
Peak NPR
dB
57
@ 40dB CNR
dB
20
Maximum
Watt
5.0
Optical Node Ambient temperature
°C °F
-25 to +85 -32 to +185
Non-condensing
%
0 to 95
D×H×W
Inch. (mm)
5.81 x 1.16 x 2.95 (147.6 x 29.5 x 74.9)
Spectral Line Width(RMS)
FP DFB CWDM
RF Specifications Impedance Return loss
Max.
RF Input level Operating bandwidth Flatness Slope Test point Link Performance Full Scale single CW amplitude
Dynamic range Environmental Power Consumption Operating Temperature Relative humidity Dimensions
Page 4 of 5
www.acicomms.com
Ordering Matrix A3410 ReturnOptical OpticalTransmitter Transmitter Module Configuration A3422XMTDR XMTDRDigital Digital Return Module Configuration sheetSheet Customer: Created By:
Order Date:
ORDERING MATRIX
Position PART NUMBER 8~12
2016/9/13
1 3
2 3 K D
4 R
5 O
6 T
7 -
8
9
10 11 12 13
DIGITAL RETURN TRANSMITTER MODULE 411-1 = 45Mhz, Single RF, Single FP-type Laser, 10km 421-1 = 45Mhz, Dual RF, Single FP-type Laser, 10km (2-fer) 413-2 = 45Mhz, Single RF, Single 1310nm DFB-type Laser, 40km 423-2 = 45Mhz, Dual RF, Single 1310nm DFB-type Laser, 40km (2-fer) 611-1 = 65Mhz, Single RF, Single FP-type Laser, 10km 621-1 = 65Mhz, Dual RF, Single FP-type Laser, 10km (2-fer) 622-1 = 65Mhz, Dual RF, Dual FP-type Laser, 10km 613-2 = 65Mhz, Single RF, Single 1310nm DFB-type Laser, 40km 623-2 = 65Mhz, Dual RF, Single 1310nm DFB-type Laser, 40km (2-fer) 624-2 = 65Mhz, Dual RF, Dual 1310nm DFB-type Laser, 40km 811-1 = 85Mhz, Single RF, Single FP-type Laser, 10km 813-2 = 85Mhz, Single RF, Single 1310nm DFB-type Laser, 40km 824-2 = 85Mhz, Dual RF, Dual 1310nm DFB-type Laser, 40km 81 □ -3 = 85Mhz, Single RF, Single CWDM-type Laser, 80km Single CWDM-type Laser A = 1471nm CWDM-type Laser C = 1491nm CWDM-type Laser D = 1511nm CWDM-type Laser E = 1531nm CWDM-type Laser F = 1551nm CWDM-type Laser G = 1571nm CWDM-type Laser H = 1591nm CWDM-type Laser J = 1611nm CWDM-type Laser
82 □ □ 3 = 85Mhz, Dual RF, Dual CWDM-type Laser, 80km Dual CWDM-type Laser 1 Dual CWDM-type Laser 2 A = 1471nm CWDM-type Laser C = 1491nm CWDM-type Laser D = 1511nm CWDM-type Laser E = 1531nm CWDM-type Laser F = 1551nm CWDM-type Laser G = 1571nm CWDM-type Laser H = 1591nm CWDM-type Laser J = 1611nm CWDM-type Laser
13
OPTICAL CONNECTOR TYPE 1 = LC / UPC (Standard)
NOTES:
ACI Communications, Inc. 23307 66th Avenue South Kent, WA 98032 Rev A 09-13-2016 Printed in U.S.A. ACI Communications, Inc. reserves the right to discontinue the manufacture or change specifications without prior notice on any parts illustrated in this data sheet. Registered trademarks are the property of their respective owner
Page 5 of 5
www.acicomms.com
