Comtech EF Data CDM-500 Especificaciones

Part Number MN/CDM500.IOM Revision 1.3 CDM-500 Satellite Modem Installation and Operation Manual

CDM-500 Satellite Modem Preface Rev. 1.3 v B.5 Packet Structure...

Preface CDM-500 Satellite Modem vi Rev. 1.3 Figures FIGURE 1-1 CDM500 PHOTO...

CDM-500 Satellite Modem Preface Rev. 1.3 vii About this Manual This manual provides installation and operation information for the Comtech EFData C

Preface CDM-500 Satellite Modem viii Rev. 1.3 IMPORTANT INFORMATION - PLEASE READ BEFORE INSTALLATION AND USE SAFETY NOTICES Electrical Safety The

CDM-500 Satellite Modem Preface Rev. 1.3 ix Installation The installation and connection to the line supply must be made in compliance to local or n

Preface CDM-500 Satellite Modem x Rev. 1.3 Warranty Policy This Comtech EFData product is warranted against defects in material and workmanship f

Rev. 1.3 1–1 1Chapter 1. INTRODUCTION 1.0 Introduction The CDM-500 (Figure 1-1) is a very low-cost Closed Network Satellite Modem, intended for V

Introduction CDM-500 Closed Network Satellite Modem 1–2 Rev. 1.3 The CDM-500 includes, as standard, a universal data interface which eliminates the

Rev. 1.3 2–1 2Chapter 2. INSTALLATION 2.0 Unpacking Inspect shipping containers for damage. If shipping containers are damaged, they should be k

Installation CDM-500 Closed Network Satellite Modem 2–2 Rev. 1.3 Note that the CDM-500 is very light - under 7 lbs (3.2 kgs), and very short – 12 in

Copyright © Comtech EFData, 2000. All rights reserved. Printed in the USA. Comtech EFData, 2114 West 7th Street, Tempe, Arizona 85281 USA, (480) 333-

Rev. 1.3 3–1 3Chapter 3. FUNCTION 3.0 Functional Description The CDM-500 has two fundamentally different types of interface - IF and data. The da

Function CDM-500 Closed Network Satellite Modem 3–2 Rev. 1.3 Following this, the data passes to the Plesiochronous/Doppler buffer, which has a progr

Rev. 1.3 4–1 4Chapter 4. PHYSICAL DESCRIPTION The CDM-500 is constructed as a 1U high rack-mounting chassis, which can be free-standing, if desir

Physical Description CDM-500 Closed Network Satellite Modem 4–2 Rev. 1.3 Table 4-1- Front Panel Led Indicators LED Color Condition Red A Unit Fa

CDM-500 Closed Network Satellite Modem Physical Description Rev. 1.3 4–3 4.2 Rear Panel All external cables are attached to connectors on the rear

Physical Description CDM-500 Closed Network Satellite Modem 4–4 Rev. 1.3 This page is intentionally blank.

Rev. 1.3 5–1 5Chapter 5. CONNECTOR PINOUTS 5.1 Connector Pinouts 5.1.1 Data Connector - 25 Pin ‘D’ Type Female Table 5-1 25 Pin ‘D’ Type Female

Connector Pinouts CDM-500 Closed Network Satellite Modem 5–2 Rev. 1.3 • DO NOT connect signals to pins which are not shown - these pins are reserve

CDM-500 Closed Network Satellite Modem Connector Pinouts Rev. 1.3 5–3 5.3 Remote Control Connector - 9 Pin ‘D’ Type Male Table 5-3 Remote Control

Connector Pinouts CDM-500 Closed Network Satellite Modem 5–4 Rev. 1.3 This page has been intentionally left blank.

Rev. 1.3 6–1 6Chapter 6. FRONT PANEL OPERATION 6.1 Description The user can fully control and monitor the operation of the CDM-500 from the front

Front Panel Operation CDM-500 Closed Network Satellite Modem 6–2 Rev. 1.3 RIGHT ARROW Moves the cursor to the right, when it is displayed LEFT AR

CDM-500 Closed Network Satellite Modem Front Panel Operation Rev. 1.3 6–3 6.2 Menu Trees Figure 2 shows the menu structure of the CDM-500. Figure

Front Panel Operation CDM-500 Closed Network Satellite Modem 6–4 Rev. 1.3 6.3 OPENING SCREEN COMTECH CDM-500 MODEM S/N 0102 S/W VER 1.01 This s

CDM-500 Closed Network Satellite Modem Front Panel Operation Rev. 1.3 6–5 6.5 CONFIG: CONFIG: ALL TX RX FRAME INTFC REMCONT MASK IMPED The sub

Front Panel Operation CDM-500 Closed Network Satellite Modem 6–6 Rev. 1.3 6.5.2 (CONFIG, TX) MOD (Modulation) SELECT TX MODULATION: BPSK QPSK (

CDM-500 Closed Network Satellite Modem Front Panel Operation Rev. 1.3 6–7 6.5.7 (CONFIG, TX) PWR (Power) EDIT OUTPUT POWER LEVEL: -03.9 dBm (

Front Panel Operation CDM-500 Closed Network Satellite Modem 6–8 Rev. 1.3 manufacturer’s modems. (Early versions of the modem did not incorporate th

CDM-500 Closed Network Satellite Modem Front Panel Operation Rev. 1.3 6–9 NOTE: If BPSK is selected, only Rate 1/2 is permitted. A warning screen

Front Panel Operation CDM-500 Closed Network Satellite Modem 6–10 Rev. 1.3 6.5.19 (CONFIG, RX) BUF (Buffer size) EDIT RX BUFFER SIZE: +/-4096 BI

Copyright © Comtech EFData, 2000. All rights reserved. Printed in the USA. Comtech EFData, 2114 West 7th Street, Tempe, Arizona 85281 USA, (480) 333-2

CDM-500 Closed Network Satellite Modem Front Panel Operation Rev. 1.3 6–11 6.5.24 (CONFIG, FRAME) FRAMED SELECT FRAMING OPTION: EDMAC-OFF EDMA

Front Panel Operation CDM-500 Closed Network Satellite Modem 6–12 Rev. 1.3 6.5.27 (CONFIG, FRAME, FRAMED, ON) EDMAC SLAVE EDIT THIS UNIT'S A

CDM-500 Closed Network Satellite Modem Front Panel Operation Rev. 1.3 6–13 6.5.32 (CONFIG, REMOTE, BAUD) If BAUD RATE is selected: EDIT LOCAL

Front Panel Operation CDM-500 Closed Network Satellite Modem 6–14 Rev. 1.3 According to the choice selected, one of the following sub-menus will be

CDM-500 Closed Network Satellite Modem Front Panel Operation Rev. 1.3 6–15 If the user selects ACTIVE, then a Receive Traffic fault will be genera

Front Panel Operation CDM-500 Closed Network Satellite Modem 6–16 Rev. 1.3 6.6 TEST TEST: NORM TX-CW TX-1,0 IF] DIG] I/O] (ENT) Select NORM, TX-

CDM-500 Closed Network Satellite Modem Front Panel Operation Rev. 1.3 6–17 6.7 INFO (Information) INFO:ID TX RX BUFF EDMAC REMCONT MASK MISC(EN

Front Panel Operation CDM-500 Closed Network Satellite Modem 6–18 Rev. 1.3 The information displayed here is as follows: Top line, left to right: •

CDM-500 Closed Network Satellite Modem Front Panel Operation Rev. 1.3 6–19 6.7.8 (INFO) MISC (Miscellaneous information) MISC: IF-LOOP 50 OHMS

Front Panel Operation CDM-500 Closed Network Satellite Modem 6–20 Rev. 1.3 6.8 MONIT (Monitor) SELECT MONITOR: ALARMS STORED EVENTS RX-PARAMS Se

CDM-500 Closed Network Satellite Modem Front Panel Operation Rev. 1.3 6–21 6.8.5 (MONIT) STORED EVENTS STORED EVENTS: VIEW CLEAR ALL (PRESS EN

Front Panel Operation CDM-500 Closed Network Satellite Modem 6–22 Rev. 1.3 6.8.7 (MONIT) RX-PARAMS (Receive Parameters) RX:EbNo=5.7dB dF=+11.7k

CDM-500 Closed Network Satellite Modem Front Panel Operation Rev. 1.3 6–23 6.9 STORE/LD (Store/Load) STORE/LOAD CONFIG: STORE LOAD (PRESS ENTER

Front Panel Operation CDM-500 Closed Network Satellite Modem 6–24 Rev. 1.3 Select the location to load a configuration from, using the UP/DOWN arrow

CDM-500 Closed Network Satellite Modem Front Panel Operation Rev. 1.3 6–25 6.10 UTIL (Utility) UTILITY: SET-RTC DISPLAY MAN-1:1 RECENTER-BUF ID

Front Panel Operation CDM-500 Closed Network Satellite Modem 6–26 Rev. 1.3 6.10.5 (UTIL) ID (Circuit ID) EDIT CIRCUIT ID: (ENTER) THIS IS A TEST

Rev. 1.3 7–1 7Chapter 7. CLOCKING When dealing with satellite modems, the subject of clocking can be a complex issue. This section describes the

Clocking CDM-500 Closed Network Satellite Modem 7–2 Rev. 1.3 7.1.3 Loop-Timed In certain circumstances, a terminal at the distant-end of a satellite

Rev. 1.3 8–1 8Chapter 8. EDMAC CHANNEL 8.1 Theory Of Operation As explained earlier, EDMAC is an acronym for Embedded Distant-end Monitor And C

EDMAC Channel CDM-500 Closed Network Satellite Modem 8–2 Rev. 1.3 therefore has a clear advantage over V.35 scrambling. This is fortunate, as there

CDM-500 Satellite Modem Preface Rev. 1.3 i Table of Contents Customer Support...

CDM-500 Closed Network Satellite Modem EDMAC Channel Rev. 1.3 8–3 This approach does not require any additional cabling - connection is made usi

EDMAC Channel CDM-500 Closed Network Satellite Modem 8–4 Rev. 1.3 This page has been intentionally left blank.

Rev. 1.3 A–1 AAppendix A. SUMMARY OF SPECIFICATIONS A.1 Modulator Data rate range Overall, 2.4 - 512 kbps 2.4 kbps - 256 kbps, Rate 1/2 BPSK

Spec Summary CDM-500 Closed Network Satellite Modem A–2 Rev. 1.3 Output impedance 50 and 75 ohms, front panel selectable 17 dB minimum return loss O

CDM-500 Closed Network Satellite Modem Spec Summary Rev. 1.3 A–3 A.3 Data Interfaces Built in RS422/EIA530 DCE (also supports X.21 DCE and DTE) V

Spec Summary CDM-500 Closed Network Satellite Modem A–4 Rev. 1.3 Figure A-1 BER Viterbi Decoding

Rev. 1.3 B–1 BAppendix B. REMOTE CONTROL B.1 Introduction This section describes the protocol and message command set for remote monitor and co

Remote Control CDM-500 Closed Network Satellite Modem B–2 Rev. 1.3 In the other direction, on the other pair, each target has a tri-stateable line d

CDM-500 Closed Network Satellite Modem Remote Control Rev. 1.3 B–3 target. The exception to this is when the controller broadcasts a message (such

Remote Control CDM-500 Closed Network Satellite Modem B–4 Rev. 1.3 B.5.3 Instruction Code This is a three-character alphabetic sequence which identi

Preface CDM-500 Satellite Modem ii Rev. 1.3 2.2 Configuration...

CDM-500 Closed Network Satellite Modem Remote Control Rev. 1.3 B–5 Second, if the controller sends an instruction to set a parameter to a particul

Remote Control CDM-500 Closed Network Satellite Modem B–6 Rev. 1.3 This page is intentionally blank.

CDM-500 Closed Network Satellite Modem Remote Control Rev. 1.3 B–7 Parameter Type Command (Instruction Code and qualifier) Arguments for Command

Remote Control CDM-500 Closed Network Satellite Modem B–8 Rev. 1.3 Parameter Type Command (Instruction Code and qualifier) Arguments for Command or

CDM-500 Closed Network Satellite Modem Remote Control Rev. 1.3 B–9 Parameter Type Command (Instruction Code and qualifier) Arguments for Command o

Remote Control CDM-500 Closed Network Satellite Modem B–10 Rev. 1.3 Parameter Type Command (Instruction Code and qualifier) Arguments for Command o

CDM-500 Closed Network Satellite Modem Remote Control Rev. 1.3 B–11 Parameter Type Command (Instruction Code and qualifier) Arguments for Command

Remote Control CDM-500 Closed Network Satellite Modem B–12 Rev. 1.3 Parameter Type Command (Instruction Code and qualifier) Arguments for Command o

CDM-500 Closed Network Satellite Modem Remote Control Rev. 1.3 B–13 Parameter Type Command (Instruction Code and qualifier) Arguments for Command

Remote Control CDM-500 Closed Network Satellite Modem B–14 Rev. 1.3 Parameter Type Command (Instruction Code and qualifier) Arguments for Command o

CDM-500 Satellite Modem Preface Rev. 1.3 iii 6.5.14 (CONFIG, RX) DATA (Data Rate) ...

CDM-500 Closed Network Satellite Modem Remote Control Rev. 1.3 B–15 Parameter Type Command (Instruction Code and qualifier) Arguments for Command

Remote Control CDM-500 Closed Network Satellite Modem B–16 Rev. 1.3 Parameter Type Command (Instruction Code and qualifier) Arguments for Command o

CDM-500 Closed Network Satellite Modem Remote Control Rev. 1.3 B–17 Parameter Type Command (Instruction Code and qualifier) Arguments for Command

Remote Control CDM-500 Closed Network Satellite Modem B–18 Rev. 1.3 This page has been intentionally left blank.

Rev. 1.3 i–1 IIndex - A - Address... B–4 Alarms Connector ... 5–2 A

Index CDM-500 Satellite Modem i–2 Rev. 1.3 End Of Packet ... B–6 Environmental...

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

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Preface CDM-500 Satellite Modem iv Rev. 1.3 6.10 UTIL (Utility) .....................