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Optical Node Series (HL2) DT6250N-50-00
Upstream Digital Transmitter for HL2 Optical Nodes
FEATURES • User-selectable RF frequency ranges: 5-45 MHz or 5-85 MHz • Dual-segment (“2-fer”) modes • Optical transmission at 1310 nm, 1550 nm, or one of fifteen CWDM or forty DWDM wavelengths • Remote status monitoring • Hot plug-in/out • Plug and play setup and set and forget operation • Compatible with DR3450N-50-00 Digital Return Receiver in the CH3000 Indoor Optics Platform
PRODUCT OVERVIEW ARRIS’s DT6250N-50-00 is an upstream digital transmitter designed for legacy Harmonic (HL2) optical nodes (HLN3144, HLN3142C, and HLN3142E) and the AN2 Pedestal Node. It is a component of ARRIS’s fifth-generation Universal Digital Return Platform. It digitizes either one or two discrete legacy RF return path signals from separate inputs. The module’s optical transmit/receive ports are implemented with plug-in transceivers for ultimate flexibility and affordability. Conforming to the Small Form Factor Pluggable (SFP) Multisource Agreement, these state-of-the art transceivers are available in a variety of transmit/receive wavelengths, including dedicated 1310 nm and 1550 nm, CWDM (15 wavelengths), and DWDM (40 wavelengths).
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There are two data rate options of 2.1 or 4.2 Gbps with their selection being dependent upon bandwidth and transceiver configuration. The DT6250N-50-00 supports user-selectable 5-45 MHz and 5-85 MHz return bandwidths, the latter being also suitable for 5-65 MHz applications. The transmitter operates in a dual-segment (“2-fer”) mode, in which two discrete return channels are independently digitized, with the two data streams being transmitted by an SFP optical transceiver on a single wavelength. At the head end or hub the digital return receiver separates and decodes the two channels and each is routed through a discrete RF return output. This maximizes fiber-efficiency with up to 80 returns on a single fiber. ARRIS’s digital return products enable existing optical nodes to be fully segmented, with each RF input port treated as a discrete network, maximizing the available bandwidth per user, while at the same time conserving the cable operators’ investment in the fiber network. An important appeal of digital upstream optical links is their operational simplicity: Their independence from link loss means plug and play setup procedure and set and forget operation.
SPECIFICATIONS Characteristics
Specification
Physical Dimensions Weight Environmental Operating Temperature Range Storage Temperature Range Humidity Power Requirements Module power consumption (without SFP) SFP power consumption (max) Optical Characteristics Optical connectors Optical transmission speeds RF Characteristics Number of RF channels RF bandwidths Frequency response flatness Level stability over temperature Link performance with DR3450N-50-00 Digital Optical Receiver
User Interface Hot plug-in/out RF bandwidth selection RF Test point value Operating mode selection (“1-fer” vs. “2-fer”) LED Indicators Operating Mode
5.5” (W) x 2.0” (H) x 1.93” (D) 140 mm (W) x 51 mm (H) x 49 mm (D) ≤ 0.6 lbs (0.3 kg) –40°C to +85°C (–40°F to 185°F) –40°C to +85°C (–40°F to 185°F) ≤ 5% to 95% non-condensing ≤5W ≤2W LC/UPC on Tx SFP 2.1 Gbps for 5-45 MHz; 4.2 Gbps for 5-65 or 5-85 MHz 2 5–45 MHz or 5–85 MHz ≤ ± 1 dB (including receiver) ≤ ± 0.5 dB Loading Operation Mode Isolation between channels (including receiver) (dB) Nominal Input (dBmV/Hz) at 41 dB NPR Dynamic range (dB) at 41 dB NPR Peak NPR (dB) Minimum full link gain (dB) with DR3450-50-00 receiver
5–45 MHz 2-fer; "50" ≥ 60
5–65 or 5–85 MHz 2-fer; "99" ≥ 55
-69
-70
≥ 10
≥ 10
≥ 47 38
≥ 47 38
push-button switch atop the module –20 dBc ± 0.5 dB (relative to each input) push-button atop the module N: Normal, or E: Enhanced (for future use) 50 (RF bandwidth of 5–45 MHz) or 99 (RF bandwidth of 5–85 MHz1) Tx; Green ON = OK, Off = faulty SFP or unit not powered Blinking = excessive BER (Bit Error Rate)
SFP Status NOTE: 1. Also suitable for use in 5-65 MHz upstream systems
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ORDERING INFORMATION Part Number
DT6250N-50-00
Compatible receiver
DR3450N-50-00
Compatible SFPs
• For 5-45 MHz applications: TR4000-PI; TR4040-PI; TR4540-0000-PI; TR4440B-1ww0-PI (ww = 27, 29, 31, 33, 35, 43, 45, 47, 49, 51, 53, 55, 57, 59, or 61); TR4580-ww-PI (ww = 20, 21, …, or 59) • For 5-65 and 5-85 MHz applications: TKA1310-TL2; TKA1310-TL10; TKA1310-TL40; TKB1550-TL40; TKC1ww0-TL40 (ww = 27, 29, 31, 33, 35, 43, 45, 47, 49, 51, 53, 55, 57, 59, or 61); TKD4580-ww-PI (ww = 20, 21, …, or 59)
SFP modules must be ordered separately. Please refer to the above list of compatible SFPs and the appropriate data sheet for specifications and ordering information.
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Note: Specifications are subject to change without notice. Copyright Statement: ©ARRIS Enterprises, LLC, 2017. All rights reserved. No part of this publication may be
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reproduced in any form or by any means or used to make any derivative work (such as translation, transformation, or adaptation) without written permission from ARRIS Enterprises, LLC (“ARRIS”). ARRIS
Contact Customer Care for product information and sales: • United States: 866-36-ARRIS • International: +1-678-473-5656
reserves the right to revise this publication and to make changes in content from time to time without obligation on the part of ARRIS to provide notification of such revision or change. ARRIS and the ARRIS logo are registered trademarks of ARRIS Enterprises, LLC. Other trademarks and trade names may be used in this document to refer to either the entities claiming the marks or the names of their products. ARRIS disclaims proprietary interest in the marks and names of others. The capabilities, system requirements and/or compatibility with third-party products described herein are subject to change without notice.
06/2017 ECO 12438
87-10986-RevC_DT6250N
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