Cisco Rfgw1d Manual

							 
 
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17 Chapter 
17 
Customer Information  
						

							 
 
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A Appx auto letter 
Appendix A 
Technical Specifications 
About This Appendix 
This appendix provides system specifications for the RF Gateway 1.  
Note: Technical specifications are subject to change without prior 
notice.  
 
 
In This Appendix 
 General Specifications ........................................................................ 250 
 Electrical Specifications ...................................................................... 252  
						

							 
Appendix A 
Technical Specifications 
250 78-4025112-01 Rev H0 
General Specifications 
Introduction 
The following table lists the general specifications of the RF Gateway 1 equipment. 
Environmental Specifications  
Item Specification 
Ambient temperature range 
 Within specs 0 to 50°C (32 to 122°F) 
 Operation 0 to 50°C (32 to 122°F) 
 Storage -40 to 70°C (-40 to 158°F) 
Operating humidity 5% to 95%, non-condensing 
Chassis Mechanical Specifications  
Item Specification 
Height 1.75 in. (44.5 mm) (1 RU) 
Width 19 in. (482.6 mm) 
Depth 21 in. (533.4 mm) 
Weight 27.5 lbs (12.5 kg) 
Physical  
Item Specification 
Dimension 
 In mm (H x W x D) 44.5 mm x 482.6 mm x 533.4 mm 
 In inch (H x W x D) 1.75” x 19” x  21"   
Weight 
 Fully loaded 12.5 kg (27.5 lbs) 
 Empty housing 6.6 kg (14.5 lbs)  
						

							 
 
 General Specifications 
 
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Power Supply Specifications  
Item Specification 
Power supply (nominal) 100 – 240 V AC ± 10% 
–48 V DC (voltage range –38 to –58 V DC) 
Power consumption (nominal) Typical < 345 Maximum < 410 W    
						

							 
Appendix A 
Technical Specifications 
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Electrical Specifications 
GbE Input Interface  
Item Specification 
Number of inputs 2 + 2 (for redundancy) 
Connector Electrical and optical small form factor 
pluggable (SFP) 
Interface type Gigabit Ethernet according to IEEE 802.3ab 
(electrical) or IEEE 802.3z (optical)  
Data rate Full line rate 
Syntax VBR and CBR MPEG SPTS and MPTS on UDP 
(RFC-768), RTP, L2TPv3, IGMPv3 
Dejitter Buffering 150 ms 
Management Interface  
Item Specification 
Interface type Ethernet 10/100Base-T 
Connector 1 x RJ 45 
Protocols HTTP, SNMP, FTP, RPC 
DTI Interface 
Item Specification 
Interface type Ethernet 10/100Base-T 
Connector 2 x RJ 45 Primary and Redundant 
RF Outputs  
Item Specification 
Number of outputs Max. 12 (each with 4 adjacent QAM channels) 
Connector F-type, 75 Ω 
Frequency   
						

							 
 
 Electrical Specifications 
 
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 Range Channel edges between 45 and 1000 MHz 
(tunable) 
 Step size 1 kHz 
 Stability ± 3 ppm 
 Accuracy ± 3 ppm 
Channel bandwidth 6, 7 or 8 MHz depending on QAM standard 
Level 
 Range Quad Mode: 54 dBmV RMS Max per QAM 
channel in 0.1 dB steps 
Triple Mode: 55 dBm V RMS Max per QAM 
channel on 0.1 dB steps 
Dual Mode: 57 dBmV RMS Max per QAM 
channel in 0.1 dB steps 
Single Mode: 61 dBmV RMS Max per QAM 
channel in 0.1 dB steps 
 Stability ± 1 dB 
 Accuracy ± 1 dB 
Return loss > 14 dB 45-750 MHz 
> 13 dB 750-870 MHz 
> 12 dB 870-1000 MHz 
Per DOCSIS 3.0 DRFI specification CM-SP-
DRFI-103-060106 
Signal Specifications  
Item Specification 
Channel encoding Randomization, Reed-Solomon, Trellis and 
Interleaving according to ITU-T Annex A, B or 
C  
MER (before equalizer) ≥ 40 dB (at RF) 
MER (after equalizer) ≥ 45 dB (at RF) 
BER (256 QAM) ≤ 5x10-9 (ITU-A/C pre FEC) 
≤ 1x10-13 (ITU-B pre FEC/post trellis) 
Bandwidth 6, 7 or 8 MHz (transmission standard 
depending) 
QAM constellation 64 & 256 QAM  
						

							 
Appendix A 
Technical Specifications 
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Specifications Optical Types SFP Modules 
The following table describes the Prisma branded optical type SFP transceivers 
available. 
Part Number Type Distance Wave Length  Mode 
4002019 WDM Up to 500m 850 nm Multi-mode 
4002020 WDM Up to 5km 1310 nm Single-mode 
The following table describes the Cisco branded optical type SFP transceivers 
available. 
Part Number Type Distance Wave Length  Mode 
GLC-SX-MM WDM Up to 500m 850 nm Multi-mode 
GLC-LH-SM WDM Up to 5km 1310 nm Single-mode 
Electrical GbE SFP Transceiver 
The following table describes the Prisma branded electrical GbE SFP transceiver 
available. 
Part Number Description 
4006222 GbE SFP copper 
The following table describes the Cisco branded electrical GbE SFP transceiver 
available. 
Part Number Description 
GLC-T GbE SFP copper 
 
  
						

							 
 
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E 
ECM 
Entitlement Control Messages.  
ECMG 
Entitlement Control Message Generator.  
EIS 
Event Information Scheduler.  
EMM 
Entitlement Management Messages.  
ES 
Elementary Stream.  F 
FTP 
File Transfer Protocol. Allows users to transfer text and binary files to and from a personal 
computer, list directories on the foreign host, delete and rename files on the foreign host, and 
perform wildcard transfers between hosts.  G 
GUI 
graphical user interface. A program interface that takes advantage of a computer graphics 
capabilities to make the program visually easier to use.  H 
HTML 
Hypertext Markup Language.  
HTTP 
Hypertext Transfer Protocol.  I 
IP 
Internet Protocol. A standard that was originally developed by the United States Department 
Glossary  
						

							 
Glossary 
 
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of Defense to support the internetworking of dissimilar computers across a network.  IP is 
perhaps the most important of the protocols on which the Internet is based. It is the standard 
that describes software that keeps track of the internetwork addresses for different nodes, 
routes, and outgoing/incoming messages on a network. Some examples of IP applications 
include email, chat, and web browsers.  
IP address 
Internet protocol address. A 32-bit sequence of numbers used for routing IP data. Each IP 
address identifies a specific component on a specific network. The address contains a network 
address identifier and a host identifier.  
ISO 
International Organization for Standardization. An international body that defines global 
standards for electronic and other industries.  P 
PC 
personal computer.  Q 
QAM 
quadrature amplitude modulation. An amplitude and phase modulation technique for 
representing digital information and transmitting that data with minimal bandwidth. Both 
phase and amplitude of carrier waves are altered to represent the binary code. By 
manipulating two factors, more discrete digital states are possible and therefore larger binary 
schemes can be represented.  R 
RADIUS 
Remote Authentication Dial-In User Service. A networking protocol that provides centralized 
Authentication, Authorization and Accounting (AAA) management for computers to connect 
and use a network service.  
RF 
radio frequency. The frequency in the portion of the electromagnetic spectrum that is above 
the audio frequencies and below the infrared frequencies, used in radio transmission systems.  
RMA 
return material authorization. A form used to return products.  
RPU 
Remote Provisioning Utility.