Comtech-ef-data MIDAS 4 System and Design Manual do Utilizador Página 1

Part Number MN/MID-DESIGN.IOM Revision 2 MIDAS Series 4System and Design ManualMULTIMEDIA INTEGRATED DIGITAL ACCESS SYSTEM

System and Design Manual, Revision 2 Preface viii Advantages...

System and Design Manual, Revision 2 6–2 Traffic Node MMuullttii--CChhaannnneell TTrraaffffiicc NNooddee A multi-channel traffic node consists of:

System and Design Manual, Revision 2 Traffic Node 6–3 SSiinnggllee--CChhaannnneell TTrraaffffiicc NNooddee For sites requiring a single data circu

System and Design Manual, Revision 2 6–4 Traffic Node SSNNMM--11000000 NNooddee CCoonnttrrooll MMooddeemm The MIDAS SNM-1000 Node Control Modem is

System and Design Manual, Revision 2 Traffic Node 6–5 Note: Comtech EF Data considers the IDC-150D, SDM-100, -140, -150, -300, and -6000 are obsolete

System and Design Manual, Revision 2 6–6 Traffic Node SSNNMM--11000000//11001100//11001100LL CCoonnttrrooll CChhaannnneell SSppeecciiffiiccaattiioo

System and Design Manual, Revision 2 Traffic Node 6–7 Demodulator Sweep Reacquisition 0 to 999 seconds, in 1 second steps Buffer Clock TX, RX, Int

System and Design Manual, Revision 2 6–8 Traffic Node TTrraaffffiicc MMooddeemmss aanndd TTeerrmmiinnaallss CCDDMM--555500 DDaattaa//SSyymmbboo

System and Design Manual, Revision 2 Traffic Node 6–9 CCDDMM--555500TT DDaattaa//SSyymmbbooll RRaattee CDM-550T 2,400 2,048,000

System and Design Manual, Revision 2 6–10 Traffic Node CCDDMM--660000 DDaattaa//SSyymmbbooll RRaattee CDM-600 2,400 20,000,000 Modu

System and Design Manual, Revision 2 Traffic Node 6–11 CCiiMM--330000LL DDaattaa//SSyymmbbooll RRaatteess CIM-300L 2,400 5,000,0

System and Design Manual, Revision 2 Preface ix 4. NETWORK MANAGEMENT SYSTEM ...4-1

System and Design Manual, Revision 2 6–12 Traffic Node CCiiMM--555500 DDaattaa//SSyymmbbooll RRaatteess CIM-550 2,400 2,048,000 M

System and Design Manual, Revision 2 Traffic Node 6–13 SSDDMM--330000AA DDaattaa//SSyymmbbooll RRaatteess SDM-300A 2,400 bit/s 5,000,000 bit

System and Design Manual, Revision 2 6–14 Traffic Node SSDDMM--330000LL DDaattaa//SSyymmbbooll RRaatteess SDM-300L 2,400 5,000,00

System and Design Manual, Revision 2 Traffic Node 6–15 SSDDMM--22002200 MMoodduullaattoorr DDaattaa//SSyymmbbooll RRaatteess SDM-2020M 1,5

System and Design Manual, Revision 2 6–16 Traffic Node SSDDMM--22002200 DDeemmoodduullaattoorr DDaattaa//SSyymmbbooll RRaatteess SDM-2020D

System and Design Manual, Revision 2 Traffic Node 6–17 SSDDMM--88000000 DDaattaa//SSyymmbbooll RRaatteess SDM-8000 9,600 9,30

System and Design Manual, Revision 2 6–18 Traffic Node SSNNMM--11001100 DDaattaa//SSyymmbbooll RRaattee SNM-1010 2,400 5,000,000 M

System and Design Manual, Revision 2 Traffic Node 6–19 SSNNMM--11001100LL DDaattaa//SSyymmbbooll RRaatteess SNM-1010L 2,400 5,00

System and Design Manual, Revision 2 6–20 Traffic Node LLeeggaaccyy PPrroodduuccttss IDC-150D Data/Symbol Rates IDC-150D 9,600 22

System and Design Manual, Revision 2 Traffic Node 6–21 SDM-150 Data/Symbol Rates SDM-150 9,600 224,000 Modulation Encoding T

System and Design Manual, Revision 2 Preface x File...

System and Design Manual, Revision 2 6–22 Traffic Node SDM-6000 Data/Symbol Rates SDM-6000 9,600 4,375,000 Modulation Encoding T

System and Design Manual, Revision 2 Traffic Node 6–23 7700//114400 MMHHzz IIFF IInntteerrffaaccee The traffic node connects to the RF equipment

System and Design Manual, Revision 2 6–24 Traffic Node UUsseerr PPoorrtt IInntteerrffaaccee The SNM-1000 provides a user port interface for request

System and Design Manual, Revision 2 Traffic Node 6–25 EEFFBBUUSS11 EFBUS1 is the SNM-1000 to Comtech EF Data Modem/Radio Frequency Terminal (RFT) E

System and Design Manual, Revision 2 6–26 Traffic Node

METRIC CONVERSIONS Units of Length Unit Centimeter Inch Foot Yard Mile Meter Kilometer Millimeter 1 centimeter — 0.3937 0.03281

2114 WEST 7TH STREET TEMPE ARIZONA 85281 USA 480 • 333 • 2200 PHONE 480 • 333 • 2161 FAX

System and Design Manual, Revision 2 Preface xi Figures Figure 1-1. MIDAS Controller Site Configuration...

System and Design Manual, Revision 2 Preface xii About this Manual This System and Design manual is written for the system operator using the MID

System and Design Manual, Revision 2 Introduction 1–1 111... IIInnntttrrroooddduuuccctttiiiooonnn IInnttrroodduuccttiioonn This document contain

System and Design Manual, Revision 2 1–2 Introduction Very Small Aperture Terminal (VSAT) technology, coupled with the bandwidth-on-demand capabilitie

System and Design Manual, Revision 2 Introduction 1–3 MMuullttiimmeeddiiaa IInntteeggrraatteedd DDiiggiittaall AAcccceessss SSyysstteemm MIDAS p

System and Design Manual, Revision 2 1–4 Introduction SSyysstteemm AArrcchhiitteeccttuurree MIDAS is divided into four distinct areas of operation:

System and Design Manual, Revision 2 Introduction 1–5 • Each traffic node can be monitored in real time to aid in remote troubleshooting. The MIDAS

System and Design Manual, Revision 2 1–6 Introduction SNM-1001 Network Control Modem The SNM-1001 Network Control Modem is an integral component of th

System and Design Manual, Revision 2 Introduction 1–7 Single-Channel Traffic Node For sites requiring a single data circuit1, an economical solution

System and Design Manual, Revision 2 1–8 Introduction Multi-Channel Traffic Node The multi-channel traffic node consists of Comtech EF Data’s SNM-1000

System and Design Manual, Revision 2 Introduction 1–9 Control Channels Control channels provide the connectivity between the MIDAS Controller and the

System and Design Manual, Revision 2 1–10 Introduction MMIIDDAASS SSuummmmaarryy The following tables reflect the chronographical history of the MID

System and Design Manual, Revision 2 Solutions 2–1 222... SSSooollluuutttiiiooonnnsss EEnntteerrpprriissee NNeettwwoorrkkiinngg The req

System and Design Manual, Revision 2 2–2 Solutions Figure 2-1. Enterprise Networking CCoonnnneeccttiivviittyy Permanent Connectivity Indefinite con

System and Design Manual, Revision 2 Solutions 2–3 The circuit is established immediately and remains active until specifically terminated by the

System and Design Manual, Revision 2 2–4 Solutions The Node Control Modem sends the request to the MIDAS Controller, which assigns bandwidth and trans

System and Design Manual, Revision 2 Solutions 2–5 User Port Triggered In addition to RTS/DTR triggered circuit setup and termination, customer e

Copyright © Comtech EF Data, 2002. All rights reserved. Printed in the USA. Comtech EF Data, 2114 West 7th Street, Tempe, Arizona 85281 USA, 480.333.

System and Design Manual, Revision 2 2–6 Solutions GGrraaddeess ooff SSeerrvviiccee MIDAS supports a wide range of grades of service to meet any re

System and Design Manual, Revision 2 Solutions 2–7 Figure 2-2. Congestion Reduction The network operation for congestion reduction is to connect

System and Design Manual, Revision 2 2–8 Solutions AAuuttoommaattiicc CCiirrccuuiitt RReessttoorraall ((DDiissaasstteerr RReeccoovveerryy)) With

System and Design Manual, Revision 2 Solutions 2–9 Figure 2-3. Automatic Circuit Restoral The traffic modem is connected to the router’s backup p

System and Design Manual, Revision 2 2–10 Solutions released. Since the circuit is only activated on demand, satellite resources are not used until ne

System and Design Manual, Revision 2 Solutions 2–11 GGrroouupp VViiddeeooccoonnffeerreenncciinngg Videoconferencing allows people in different

System and Design Manual, Revision 2 2–12 Solutions RF EquipmentNODE CONTROL MODEMTX & RX IFEIA-485SDM-300SATEL LI TE M ODE MTRANSMITRECEIVETRANSM

System and Design Manual, Revision 2 Solutions 2–13 VViiddeeoo CCoonnffeerreennccee SSeessssiioonn A videoconference session involves a chairp

System and Design Manual, Revision 2 2–14 Solutions Chairperson The chairperson manages the videoconference session. Using VCCS™, the chairperson can:

System and Design Manual, Revision 2 Solutions 2–15 Initiation 1. Chairperson selects one of the pre-defined groups from the VCCS™ touch panel.

System and Design Manual, Revision 2 Preface ii Network Customer Support The Network Customer Support Plan identifies the steps to be followed

System and Design Manual, Revision 2 2–16 Solutions Termination 1. The participants can leave the conference by selecting the appropriate icon on the

System and Design Manual, Revision 2 Solutions 2–17 AAddvvaannttaaggeess The bandwidth-on-demand solution provided by MIDAS has many advantages:

System and Design Manual, Revision 2 2–18 Solutions This page is intentionally left blank.

System and Design Manual, Revision 2 Theory of Operation 3–1 333... TTThhheeeooorrryyy OOOfff OOOpppeeerrraaatttiiiooonnn TTrraannssmmiissss

System and Design Manual, Revision 2 3–2 Theory of Operation AAlloohhaa PPrroottooccooll Aloha is a random access protocol where the users send dat

System and Design Manual, Revision 2 Theory of Operation 3–3 • Pre-assigned digital SCPC channel using slotted aloha access scheme. •

System and Design Manual, Revision 2 3–4 Theory of Operation Modulation Factor 1 for BPSK 2 for QPSK 2 for OQPSK 3 for 8PSK 4 for 16QAM In general, “

System and Design Manual, Revision 2 Theory of Operation 3–5 allocated to the simplex data circuit, leaving 185 kHz for other traffic.

System and Design Manual, Revision 2 3–6 Theory of Operation CCaarrrriieerr PPoowweerr MIDAS handles different antenna sizes, carrier levels, and d

System and Design Manual, Revision 2 Theory of Operation 3–7 LLiinnkkSSyynncc™™ LinkSync™ is a unique MIDAS feature providing: • Auto

System and Design Manual, Revision 2 Preface iii CustomerMidas Network is functioningproperly?Level One Contact is notifiedAuthorized Factory S

System and Design Manual, Revision 2 3–8 Theory of Operation These three steps are performed as follows: 1. The LinkSync™ Modem measures the receiv

System and Design Manual, Revision 2 Theory of Operation 3–9 CCiirrccuuiitt PPoowweerr MMaannaaggeemmeenntt ((OOppttiioonn)) Circui

System and Design Manual, Revision 2 3–10 Theory of Operation Example: For 6400bps carrier, QPSK and FEC 3/4, No AUPC or Reed-Solomon, the bandwidth

System and Design Manual, Revision 2 Theory of Operation 3–11 Circuit Setup A full duplex data circuit setup could be initiated by: •

System and Design Manual, Revision 2 3–12 Theory of Operation The sequence is illustrated in Figure 3-2. CALLING NODE NMS CALLED NODECIRCUIT ASSIGNME

System and Design Manual, Revision 2 Theory of Operation 3–13 The circuit termination initiated by the traffic node where both the tra

System and Design Manual, Revision 2 3–14 Theory of Operation The termination sequence is similar to that of a data circuit. To terminate circuits in

System and Design Manual, Revision 2 Theory of Operation 3–15 The MIDAS Controller could initiate the establishment of a point-to-multi

System and Design Manual, Revision 2 3–16 Theory of Operation Circuit Termination The point-to-multipoint circuit termination could be initiated by:

System and Design Manual, Revision 2 Theory of Operation 3–17 preempted. Normal priority circuits, Which cannot preempt other circuits.

System and Design Manual, Revision 2 Preface iv See the Comtech EF Data website at http://www.comtechefdata.com for contact information for a Fac

System and Design Manual, Revision 2 3–18 Theory of Operation This page is intentionally left blank.

System and Design Manual, Revision 2 Network Management System 4–1 444 NNNeeetttwwwooorrrkkk MM

System and Design Manual, Revision 2 4–2 Network Management System IMPORTANT The MIDAS Controller can be located separately at an Earth Station, o

System and Design Manual, Revision 2 Network Management System 4–3 MMIIDDAASS CCoonnttrroolllleerr The MIDAS controller operates on

System and Design Manual, Revision 2 4–4 Network Management System OOppeerraattoorr WWoorrkkssttaattiioonn The MIDAS operator workstation connect

System and Design Manual, Revision 2 Network Management System 4–5 SSNNMM--11000011 NNeettwwoorrkk CCoonnttrrooll MMooddeemm The C

System and Design Manual, Revision 2 4–6 Network Management System SSNNMM--11000022 LLiinnkkSSyynncc™™ MMooddeemm The Comtech EF Data's SN

System and Design Manual, Revision 2 Network Management System 4–7 MMIIDDAASS CCoonnttrroolllleerr OOppttiioonnss The following opt

System and Design Manual, Revision 2 4–8 Network Management System Figure 4-2. Locally Redundant MIDAS Controller Configuration (Method 1)

System and Design Manual, Revision 2 Network Management System 4–9 Figure 4-3. Geo-Redundant MIDAS Controller Configuration (Method

System and Design Manual, Revision 2 Preface v Contact the Comtech EF Data Network Test and Field Support for: • System level Network Operation

System and Design Manual, Revision 2 4–10 Network Management System RReedduunnddaanntt NNeettwwoorrkk CCoonnttrrooll MMooddeemm As an option, a

System and Design Manual, Revision 2 Operator Functions 5–1 555... OOOpppeeerrraaatttooorrr FFFuuunnnccctttiiiooonnnsss UUsseerr MMaann

System and Design Manual, Revision 2 5–2 Operator Functions • Access list: For each user, an access list is maintained. The list contains the user

System and Design Manual, Revision 2 Operator Functions 5–3 SSyysstteemm SSeettuupp The System Setup screen is used to configure the system-speci

System and Design Manual, Revision 2 5–4 Operator Functions SSiittee CCoonnffiigguurraattiioonn A MIDAS network has two types of sites: • MIDAS Co

System and Design Manual, Revision 2 Operator Functions 5–5 TTrraaffffiicc NNooddee CCoonnffiigguurraattiioonn The traffic node provides the tra

System and Design Manual, Revision 2 5–6 Operator Functions TTrraaffffiicc CChhaannnneell CCoonnffiigguurraattiioonn Traffic channels provide the t

System and Design Manual, Revision 2 Operator Functions 5–7 DDiirreeccttoorryy The system supports the concept of logical addresses to identify tr

System and Design Manual, Revision 2 5–8 Operator Functions HHuunntt GGrroouuppss The system supports hunt groups for logical grouping . A hunt grou

System and Design Manual, Revision 2 Operator Functions 5–9 DDaattaa CCiirrccuuiitt A point-to-point full duplex or simplex data circuit can be p

System and Design Manual, Revision 2 Preface vi This page is intentionally left blank.

System and Design Manual, Revision 2 5–10 Operator Functions PPooiinntt--ttoo--MMuullttiippooiinntt DDaattaa CCiirrccuuiitt A point-to-multipoint s

System and Design Manual, Revision 2 Operator Functions 5–11 The first traffic channel in the list is always the broadcaster. Its Directory Number

System and Design Manual, Revision 2 5–12 Operator Functions VViiddeeoo CCoonnffeerreennccee MIDAS supports end-user initiated videoconference sessi

System and Design Manual, Revision 2 Operator Functions 5–13 SSppaaccee SSeeggmmeenntt CCoonnffiigguurraattiioonn MIDAS is capable of managing b

System and Design Manual, Revision 2 5–14 Operator Functions BBaannddwwiiddtthh PPoooollss The bandwidth pools allow the reservation of bandwidth fo

System and Design Manual, Revision 2 Operator Functions 5–15 CCoonnttrrooll CChhaannnneellss Dedicated satellite channels from the owned public b

System and Design Manual, Revision 2 5–16 Operator Functions BBaacckkuupp aanndd RReessttoorree A backup function is available on the operator work

System and Design Manual, Revision 2 Operator Functions 5–17 EEvveenntt LLoogg The Event Log contains all the system events that have occurred. A

System and Design Manual, Revision 2 5–18 Operator Functions OOccccuuppaannccyy GGrraapphh The Occupancy Graph is a color-coded graphical representa

System and Design Manual, Revision 2 Operator Functions 5–19 Channel Status Color Text Description Green CIP Channel is currently in use (activ

System and Design Manual, Revision 2 Preface vii Table of Contents 1. INTRODUCTION...

System and Design Manual, Revision 2 5–20 Operator Functions CCoommpplleetteedd CCaallll LLoogg The Completed Call Log lists all the successful and

System and Design Manual, Revision 2 Operator Functions 5–21 AAccttiivvee CCaallll LLoogg The Active Call Log lists all the active circuits in t

System and Design Manual, Revision 2 5–22 Operator Functions CCoonnttrrooll CChhaannnneell SSttaattiissttiiccss The Control Channel Statistics list

System and Design Manual, Revision 2 Operator Functions 5–23 NNooddee--CChhaannnneell SSttaattuuss The Node-Channel Status is a color-coded sta

System and Design Manual, Revision 2 5–24 Operator Functions FFiillee The File consists of the following: • File Header • File Record FFiillee HHe

System and Design Manual, Revision 2 Operator Functions 5–25 where: Field Description CallType Indicates if a data or video call. CallSubType

System and Design Manual, Revision 2 5–26 Operator Functions ToPowerLevel Transmit power level of the destination traffic modem. ToEbNo Receive Eb/N

System and Design Manual, Revision 2 Operator Functions 5–27 SSeerrvviiccee MMeessssaaggeess Service messages are provided for exchanging short t

System and Design Manual, Revision 2 5–28 Operator Functions This page is intentionally left blank.

System and Design Manual, Revision 2 Traffic Node 6–1 666... TTTrrraaaffffffiiiccc NNNooodddeee OOvveerrvviieeww The traffic node provi