Data Sheet

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Prisma II

1550 nm Transmitters

The Prisma II optical network is an advanced transmission system designed to

optimize network architectures and increase reliability, scalability, and cost-

effectiveness. Prisma II 1550 nm Transmitters offer the ultimate in network

architecture flexibility with products designed specifically for broadcast or

narrowcast transmission to long distances and at various wavelengths.

Features

• 1 GHz operation for forward path

• Designed to operate within the Prisma II platform

• Multiple channel plans available

• Stimulated Brillouin Scattering (SBS) suppression

• RF predistortion for maximum CNR while maintaining excellent CTB and CSO

performance

• Status LEDs indicate module condition and simplify troubleshooting

• Blind-mate (push-on) RF and DC connectors

• RF input test points

• Nonvolatile storage of pre-set operating parameters simplifies installation

procedures

• 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 Network Control System (TNCS)

Figure 1. Prisma 1550 nm Optical Transmitters

Transmitter Modules

The Prisma II 1550 nm Transmitter Family includes:

• Long Reach Externally-Modulated Broadcast Transmitter (TXL)

• Extended Reach Externally-Modulated Broadcast Transmitter (TXX)

• High-Density Forward QAM Transmitter (TXQ)

• Reverse Directly-Modulated Transmitter (TXR)

Summary of content (8 pages)

PAGE 1
Prisma II 1550 nm Transmitters The Prisma II optical network is an advanced transmission system designed to optimize network architectures and increase reliability, scalability, and costeffectiveness. Prisma II 1550 nm Transmitters offer the ultimate in network architecture flexibility with products designed specifically for broadcast or narrowcast transmission to long distances and at various wavelengths.
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Product Specifications Table 1. Optical Specifications Optical Units Long Reach & High-Density Extended Reach Forward QAM Tx Reverse Tx Notes 1530-1562 1530-1562 1 Standard Standard Standard Optional Optional Optional +10 +10 +8 External Direct Direct ≥ 17.0 (TXL) ≥ rated output ≥ rated output Broadcast Tx Wavelength Range ● Options nm 1545 to 1548 nm 1549 to 1554 Connector Type ● SC/APC ● E2000/APC Output Power (minimum) dBm Modulation Type SBS Threshold dBm ≥ 15.
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Table 2. Electrical Specifications Electrical Units Long Reach & High-Density Extended Reach Forward QAM Tx Reverse Tx Notes Broadcast Tx Bandwidth MHz 45-1002 550-1002 5-200 40 NTSC ch’s (Low or High) dBmV 23 N/A N/A 1 78 NTSC analog ch’s with: -200 MHz QAM (550-750 MHz) @ -6 dB -450 MHz QAM (550-1000 MHz) @ -6 dB dBmV dBmV 19.5 19.0 N/A N/A N/A N/A 1 1 64 PAL B/G analog ch’s with: -150 MHz QAM (600-750 MHz) @ -6 dB -400 MHz QAM (600-1000 MHz) @ -6 dB dBmV dBmV 20.5 20.
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Table 3. Environmental Specifications Environmental Units Long Reach & Extended Reach Broadcast Tx High-Density Reverse Tx Notes Forward QAM Tx °C °F °C °F % -20 to +65 -4 to +149 -40 to +65 -40 to +149 0 to 95 -20 to +65 -4 to +149 -40 to +65 -40 to +149 0 to 95 -20 to +65 -4 to +149 -40 to +65 -40 to +149 0 to 95 1 Units Long Reach & Extended Reach Broadcast Tx High-Density Reverse Tx Notes Forward QAM Tx in. cm in. cm in. cm lb kg slots 9.8 24.9 3.2 8.1 7.6 19.3 6.0 2.7 3 8.80 22.
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Table 5. Link Performance Specs - Long Reach Externally-Modulated Broadcast Transmitters (see note 8) Channel Loading 40 NTSC analog ch’s (Low or High) 78 NTSC analog ch’s with: -200 MHz QAM (550-750 MHz) @ -6 dB 64 PAL B/G analog ch’s with: -150 MHz QAM (600-750 MHz) @ -6 dB CNR* CSO* CTB* Notes 55 65 65 1,3 51.
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Ordering Information Figure 2.
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Figure 3. High-Density Forward QAM Transmitter Sample P 2 P 2 H D 1 5 T X Q 1 5 T X Q 1 0 G H Z D M Q A M S Platform A I T U 5 Wavelength ITU20 through ITU59 Channel Load & Format Product 1550 High Density Forward QAM Tx QAM HD15TXQ Output Power +10 dBm (see ordering table for wavelengths) QAM Connectors 10 SC/APC E2000/APC SA E2 (optional) Passband 1 GHZ GHZ Modulation Direct Table 10.
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Figure 4. Reverse Transmitter Matrix Table 11. Ordering Information – 1550 nm Reverse Tx, 8 dBm, Model #: P2-15TXR-08-SA-ITU xx ITU Channels Wavelength (nm) Part Number ITU Channels Wavelength (nm) Part Number 21 1560.61 737404 41 1544.53 737414 23 1558.98 737405 43 1542.94 737415 25 1557.36 737406 45 1541.35 737416 27 1555.75 737407 47 1539.77 737417 29 1554.13 737408 49 1538.19 737418 31 1552.52 737409 51 1536.61 737419 33 1550.92 737410 53 1535.