Transcript
Optoelectronics
Prisma II™ 1310 nm Transmitters Description
The Prisma II™ optical network is an advanced transmission system designed to optimize network architectures and increase reliability, scalability, and cost effectiveness. The 1310 nm Transmitters are designed to operate over a wide range of optical output powers and loss budgets, delivering both analog and digital signals. Microprocessor control allows ease of installation and flexibility of application. The transmitter design includes an array of contemporary capabilities including: low RF input level, broadcast and new media RF inputs, and three levels (Standard, XL and XLS) of performance.
Features • • •
• • • • • • • • • •
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Forward and reverse transmitters available in various channel plans Applicable to loss budgets of 2 dB to 17 dB Variable modulation depth (RF drive level) and precise optical power levels enables superior link optimization and lower spare requirements Advanced pre-distortion circuitry improves cost-to-performance ratio 1310 nm Forward Transmitter RF Overdrive Protection to protect the laser Nonvolatile storage of pre-set operating parameters simplifies installation procedures Simple plug-and-play operation Dual RF inputs for broadcast video and new media service tiers Blind-mate (push-on) RF and DC connectors Optical connector is removable to enable quick cleaning RF input test point User selectable Automatic Gain Control (AGC) Multiple set-up and control options − Local control via Local Craft Interface (LCI) − Local control via Intelligent Communications Interface Module (ICIM) − Remote monitoring via Transmission Networks Control System (TNCS) Master / Slave Redundancy
Transmitter Modules The Prisma II 1310 nm Transmitter Family includes: • 1 GHz Forward Transmitter • 200 MHz Reverse Transmitter
Prisma II 1310 nm Transmitters 1310 nm Forward Transmitter Broadcast RF Input
Voltage Controlled Attenuator
DFB Laser
Predistortion
Optical Output
New Media (narrowcast) RF Input
ICIM Front Panel (optional module)
Front Panel RF Test Point
LCI User Interface Connector
Microprocessor
(on chassis)
1310 nm Reverse Transmitter Narrowcast RF Input
Voltage Controlled Attenuator
Predistortion
DFB Laser
Optical Output
ICIM Front Panel (optional module)
Front Panel RF Test Point
Microprocessor
LCI User Interface Connector (on chassis)
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Prisma II 1310 nm Transmitters Specifications Optical Nominal Optical Output Wavelength Optical Interface SC/APC SC/UPC FC/UPC E2000/APC Optical Modulation Index (OMI) (typical)
Units nm
Optical Output Power
dBm dBm dBm dBm dBm dBm Units MHz dB
Electrical Bandwidth Frequency Response
%/ch
Input Return Loss
dB
RF AGC Range Port-to-Port Isolation (New Media to Broadcast Inputs) Input A – Broadcast Required per channel RF Input Level NTSC 78 Analog ch NTSC 110 Analog ch PAL B/G 64 Analog ch PAL I HRC 62 Analog ch PAL D/K 58 Analog ch CENELEC 42 Analog ch NTSC 4 T Channels Input B – New Media (narrowcast) Required per channel RF Input Level QAM carriers @ -6 dBc
dB dB
Other analog carriers
dBmV dBmV dBmV dBmV dBmV dBmV dBmV
Standard Optional Optional Optional 3.8 Low Ch; 3.2 High Ch 4 6 8 10 12 14 Forward Tx 46 - 1000 ± 0.60 (46 - 870 MHz) ± 1.0 (46 - 1000) MHz 16.0 Video 16.0 New Media ± 1.5 from nominal > 50
Standard Optional Optional Optional 10
Notes
1,2,3, 4,5
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Reverse Tx 5 - 200 ±1
Notes
16.0 across the band N/A N/A
14 12 15 15 15 17 N/A
20
dB
+19
dB
(above Input A RF level) +25 (above Input A RF level)
W DC
Environmental Operating Temperature Range Full Specs
Units
Humidity Range Mechanical (All Modules) Depth Width Height Weight Module Width
Reverse Tx 1310 ± 20
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Power Consumption (maximum) Front Panel Test Point Relative to Input
Operational
Forward Tx 1310 ± 20
dB
°C °F °C °F % Units
lb slots
15 Broadcast Input -20 ± 1.0 New Media Input -45 ± 1.0 Forward Tx
15 RF Input Port -20 ± 1.0
-20 to +65 -4 to +149 -40 to +65 -40 to +149
-20 to +65 -4 to +149 -40 to +65 -40 to +149
0 to 95
0 to 95
Reverse Tx
7 2
Notes
8 Notes
9.8 in. (24.9 cm) 1.0 in. (2.5 cm) 7.6 in. (19.3 cm) 3.0 lb (1.4 kg) 1
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Prisma II 1310 nm Transmitters Performance Specifications 1310 nm Forward Transmitter - Low Channel Load Performance (NTSC 78, PAL I HRC 62, PAL B/G 64, PAL D/K 58, CENELEC 42) Carrier to Noise Output Link Power Loss dBm 4
dBm 6
dBm 8
dBm 10
dBm 12
Output Power 14
All Fiber
2 3 4 5 6 7
CNR
4 5 6 7 8 9
CNR
6 7 8 9 10 11
CNR
8 9 10 11 12 13
CNR
10 11 12 13 14 15 Link Loss
CNR
12 13 14 15 16 17
CNR
Std
XL
XLS
53 52 51 50 49 48 Std 53 52 51 50 49 48 Std 53 52 51 50 49 48 Std 53 52 51 50 49 48 Std 53 52 51 50 49 48
55 54 53 52 51 50 XL 55 54 53 52 51 50 XL 55 54 53 52 51 50 XL 55 54 53 52 51 50 XL 55 54 53 52 51 50 All Fiber
57 56 55 54 53 52 XLS 57 56 55 54 53 52 XLS 57 56 55 54 53 52 XLS 56 55 54 53 52 51 XLS 56 55 54 53 52 51
55 54 53 52 51 50
Fiber + 3.5 dB Passive Loss Std XL XLS
Fiber + 7 dB Passive Loss Std XL XLS
Notes
------------52 54 56 51 53 55 50 52 54 49 51 53 Std XL XLS 54 56 58 53 55 57 52 54 56 51 53 55 50 52 54 49 51 53 Std XL XLS 54 56 58 53 55 57 52 54 56 51 53 55 50 52 54 49 51 53 Std XL XLS 54 56 57 53 55 56 52 54 55 51 53 54 50 52 53 49 51 52 Std XL XLS 54 56 57 53 55 56 52 54 55 51 53 54 50 52 53 49 51 52 Fiber + 4.5 dB Passive Loss
------------------------------50 52 54 Std XL XLS ------------------52 54 56 51 53 55 50 52 54 Std XL XLS ------54 56 58 53 55 57 52 54 56 51 53 55 50 52 54 Std XL XLS 55 57 58 54 56 57 53 55 56 52 54 55 51 53 54 50 52 53 Std XL XLS 55 57 58 54 56 57 53 55 56 52 54 55 51 53 54 50 52 53 Fiber + 9 dB Passive Loss
1,2,3, 4,5
56 55 54 53 52 51
57 56 55 54 53 52
1,2,3, 4,5
1,2,3, 4,5
1,2,3, 4,5
1,2,3, 4,5
Notes
1,2,3, 4,5
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Prisma II 1310 nm Transmitters Performance Specifications, continued 1310 nm Forward Transmitter - High Channel Load Performance (NTSC 110, PAL I HRC 81, PAL B/G 89, PAL D/K 83) Carrier to Noise Output Link Power Loss dBm 4 2 3 4 5 6 7 dBm 6 4 5 6 7 8 9 dBm 8 6 7 8 9 10 11 dBm 10 8 9 10 11 12 13 dBm 12 10 11 12 13 14 15 Output Link Power Loss dBm 14 12 12 14 15 16 17
All Fiber
CNR
CNR
CNR
CNR
CNR
Std 51 50 49 48 47 46 Std 51 50 49 48 47 46 Std 51 50 49 48 47 46 Std 51 50 49 48 47 46 Std 51 50 49 48 47 46
Std CNR
XL 53 52 51 50 49 48 XL 53 52 51 50 49 48 XL 53 52 51 50 49 48 XL 53 52 51 50 49 48 XL 53 52 51 50 49 48 All Fiber
XLS 55 54 53 52 51 50 XLS 55 54 53 52 51 50 XLS 55 54 53 52 51 50 XLS 54 53 52 51 50 49 XLS 54 53 52 51 50 49
XL 53 52 51 50 49 48
XLS
Fiber + 3.5 dB Passive Loss Std XL XLS ------------50 52 54 49 51 53 48 50 52 47 49 51 Std XL XLS 52 54 56 51 53 55 50 52 54 49 51 53 48 50 52 47 49 51 Std XL XLS 52 54 56 51 53 55 50 52 54 49 51 53 48 50 52 47 49 51 Std XL XLS 52 54 55 51 53 54 50 52 53 49 51 52 48 50 51 47 49 50 Std XL XLS 52 54 55 51 53 54 50 52 53 49 51 52 48 50 51 47 49 50 Fiber + 4.5 dB Passive Loss Std XL XLS 54 53 52 51 50 49
Std ----------48 Std ------50 49 48 Std --52 51 50 49 48 Std 53 52 51 50 49 48 Std 53 52 51 50 49 48
Std
Fiber + 7 dB Passive Loss XL XLS --------------------50 52 XL XLS ------------52 54 51 53 50 52 XL XLS ----54 56 53 55 52 54 51 53 50 52 XL XLS 55 56 54 55 53 54 52 53 51 52 50 51 XL XLS 55 56 54 55 53 54 52 53 51 52 50 51 Fiber + 9 dB Passive Loss XL XLS 55 54 53 52 51 50
Notes
1,2,3, 4,5
1,2,3, 4,5
1,2,3, 4,5
1,2,3, 4,5
1,2,3, 4,5
Notes
1,2,3, 4,5
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Prisma II 1310 nm Transmitters Performance Specifications, continued Distortion Performance for all Output Powers CTB CSO XMOD CB
Std 69 64 65 61
XL 69 64 65 61
XLS 69 64 65 61
Std 69 64 65 61
XL 69 64 65 61
XLS 69 64 65 61
Std 69 64 65 61
XL 69 64 65 61
XLS 69 64 65 61
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Reverse Transmitter Output Power 6 dBm (4 mW)
Loss Budget dB 16
CNR 48
CTB 62
CSO 55
Notes 1,9,10
Notes: 1. At specified RF input level. Specifications are for unmodulated (CW) carriers. 2. New Media (Input B) requires an RF input level that is greater than the RF input to Broadcast (Input A). 3. Low Channel Loading is NTSC 78, Pal I HRC 62, PAL B/G 64, PAL D/K 58, CENELEC 42 Analog Channels. 4. High Channel Loading is NTSC 110, PAL I HRC 81, PAL B/G 89, PAL D/K 83 Analog Channels. 5. With 4 NTSC channels T8 – T11 (13, 18, 25, 31 MHz) at 20 dBmV/channel. 6. Activation of digital loading may impact analog performance. Testing of digital loading with 550 MHz of analog video channels and 33, 64 QAM channels (-6 dB from video) to 750 MHz indicates a typical CNR degradation of less than 0.5 dB. 7. T8 – T11 (13, 18, 25, 31 MHz) 8. Recommended for use only in non-condensing environments. 9. Loss budget consists of 10 dB of single mode fiber optic cable (glass loss) and 6 dB of nondispersive passive loss. 10. C/N is measured with all 4 carriers on. There will be approximately 2 dB degradation in C/N when measurement is made with a single carrier. Unless otherwise noted, specifications are guaranteed minimum performance and are based on measurements made in accordance with NCTA Practices for Measurements made on Cable Television Systems using standard frequency assignments and are referenced to the ambient air temperature at the inlet to the Prisma II chassis.
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Prisma II 1310 nm Transmitters Ordering Information Forward Transmitter Sample P
2
1
4
T
X
F
P
2
1
4
T
X
F
1
2
S
T
N
T
1
1
0
S
A
Platform Performance Standard XL XLS
Product 1310 Forward Tx
14TXF
Output Power +4 dBm +6 dBm +8 dBm +10 dBm +12 dBm +14 dBm
Connectors ST XL XS
SC/APC* SC/UPC FC/UPC E2000/APC
Channel Load & Format 04 06 08 10 12 14* XL only
NTSC 78 NTSC 110 PAL I 62 PAL I 81 PAL B/G 64 PAL B/G 89 PAL D/K 58 PAL D/K 84 CENELEC 42
SA SP FP E2
* Standard connector
NT78 NT110 PI62 PI81 PBG64 PBG89 PDK58 PDK84 CEN42
Reverse Transmitter Sample P
2
1
3
T
X
R
P
2
1
3
T
X
R
A
Connectors
Platform Product 1310 Reverse Tx
S
13TXR
SC/APC* SC/UPC FC/UPC E2000/APC
SA SP FP E2
* Standard connector
Prisma II products include the industry’s most complete range of high performance optical components: Platform 1550 nm Transmitters 1550 nm Optical Amplifiers Receivers Ancillary Modules bdr™ Digital Reverse 2:1 Multiplexing System
For more information please refer to: Prisma II Data Sheet Part Number 739199 Prisma II Data Sheet Part Number 739201 Prisma II Data Sheet Part Number 739202 Prisma II Data Sheet Part Number 739203 Prisma II Data Sheet Part Number 739205 Prisma II Data Sheet Part Number 744484
Scientific-Atlanta, the Scientific-Atlanta logo, and Prisma are registered trademarks of Scientific-Atlanta, Inc. Prisma II and bdr are trademarks of Scientific-Atlanta, Inc. Specifications and availability are subject to change without notice. © 2004 Scientific-Atlanta, Inc. All rights reserved. Scientific-Atlanta, Inc. 1-800-722-2009 or 770-236-6900 www.scientificatlanta.com
Part Number 739200 Rev G September 2004
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