CiM-550 IP Enabled Satellite Modem

Rev. 2

Introduction

CD/CIM550.IOM

1.5SPECIFICATIONS

SYSTEM SPECIFICATIONS (FULLY ENHANCED)

Frequency Range

52 to 88 MHz, 104 to 176 MHz (option), stability ± 1.5 ppm, 0 to 500 C

Input/Output Impedance

50 and 75 Ohms (Front panel selectable), 17 dB min. return loss

 

 

IF Connector

BNC, female

 

 

Data Interface

10baseT/100baseTX Ethernet (RJ-45 connector)

 

 

 

DB25 female, providing: (CDM-550 mode only)

 

 

 

EIA422/EIA530 DCE

 

 

 

V.35 DCE

 

 

 

X.21 DCE and DTE

 

 

 

Sync / Async EIA232

 

 

External TX Carrier Off

By TTL ‘low’ signal or external contact closure – hardware function

 

automatically overrides processor

WAN Encapsulation

HDLC 1

Data rate range

Overall, 2.4 - 2048 kbps

 

4.8 kbps - 2048 kbps, Uncoded BPSK

 

9.6 kbps - 2048 kbps, Uncoded QPSK/OQPSK

 

2.4 kbps - 1024 kbps, Rate 1/2 BPSK

 

4.8 kbps - 2048 kbps, Rate 1/2 QPSK/OQPSK

 

7.2 kbps - 2048 kbps, Rate 3/4 QPSK/OQPSK

 

8.4 kbps - 2048 kbps, Rate 7/8 QPSK/OQPSK

 

2.4 kbps - 1145 kbps, Rate 21/44 BPSK Turbo

 

2.4 kbps - 750 kbps, Rate 5/16 BPSK Turbo

 

(Fully Independent Tx and Rx rates)

 

 

Scrambling

Transparent mode, no RS coding - per CCITT V.35

 

EDMAC mode, no RS coding - externally synchronized

 

Turbo Product Code mode - externally synchronized

 

 

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