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2 environmental and physical – Comtech EF Data CDM-760 User Manual

Page 36

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Introduction

Revision 2

CDM-760 Advanced High-Speed Trunking Modem

MN-CDM760

1–10

1.3 CDM-760 Specifications

1.3.1 System Specifications

Symbol/Date Rate Range

Programmable in 1 sps increments

DVB-S2

QPSK: 1/2, 3/5, 2/3, 3/4, 4/5, 5/6, 8/9, 9/10 to 150 Msps / 261.9 Mbps max
8-PSK: 3/5, 2/3, 3/4, 5/6, 8/9, 9/10 to 120 Msps / 314.2 Mbps max
16-APSK: 2/3, 3/4, 4/5, 5/6, 8/9, 9/10 to 90 Msps / 313.5 Mbps max
32-APSK: 3/4, 4/5, 5/6, 8/9, 9/10 to 72 Msps / 313.7 Mbps max

DVB-S2-EB1

QPSK: 1/2, 8/15, 17/30, 3/5, 19/30, 2/3,127/180, 3/4, 4/5, 5/6, 31/36, 8/9, 9/10 to 150 Msps / 261.9

Mbps max
8-PSK: 17/30, 3/5, 19/30, 2/3, 127/180, 3/4, 5/6, 31/36, 8/9, 9/10 to 120 Msps / 314.2 Mbps max
16-APSK: 19/30, 2/3,127/180, 3/4, 4/5, 5/6, 31/36, 8/9, 9/10 to 90 Msps / 313.5 Mbps max
32-APSK: 127/180, 3/4, 4/5, 5/6, 31/36, 8/9, 9/10 to 72 Msps / 313.7 Mbps max

DVB-S2-EB1

QPSK: 1/2, 8/15, 17/30, 3/5, 19/30, 2/3,127/180, 3/4, 4/5, 5/6, 31/36, 8/9, 9/10 to 150 Msps / 261.9

Mbps max
8-PSK: 17/30, 3/5, 19/30, 2/3, 127/180, 3/4, 5/6, 31/36, 8/9, 9/10 to 120 Msps / 314.2 Mbps max
16-APSK: 19/30, 2/3,127/180, 3/4, 4/5, 5/6, 31/36, 8/9, 9/10 to 90 Msps / 313.5 Mbps max
32-APSK: 127/180, 3/4, 4/5, 5/6, 31/36, 8/9, 9/10 to 72 Msps / 313.7 Mbps max
64-APSK: 4/5, 5/6, 31/36, 8/9, 9/10 to 54 Msps / 281.9 Mbps max

FECFrame

Standard (64,800 bits) or Short (16,200 bits)

Pilots

On or Off

Alpha (Rolloff)

20%, 25% or 35% (in DVB-S2 mode)

5%, 10%, 15%, 20%, 25% or 35% (in DVB-S2-EBx mode)

Management

Front panel keypad / display EIA-232 /485, or 10/100/1000 BaseT with, SNMP, Telnet, HTTP

Firmware Update

Ethernet management port

Frequency Stability

Internal, stability ±0.06 ppm

Form C

Modulator, demodulator and Unit fault

Configuration Retention

Non-volatile memory; Returns upon power up

External Reference I/O

Reference Selections: Internal 10 MHz, External Input 1, 2, 5, 10 MHz at -6dBm to +10dBm (nominal

50/75Ω, BNC female connector)
Output Selection: (internal 10 MHz) at 2.7 volts peak-to-peak ± 0.4 volts, low impedance output
Tx and Rx IF and L-Band synthesizers phase lock to the reference.

1.3.2 Environmental and Physical

Temperature

Operating 0 to 50ºC (32 to 122ºF)

Storage -40 to 70ºC (-40 to 158ºF)

Humidity

95% maximum, non-condensing

Power Supply

Input

AC 100-240 VAC, 50/60 Hz

Optional 48V DC 43-60 VDC

Power

Consumption

120 VAC @ 60 Hz 88W, 93 VA typical
230 VAC @ 50 Hz 88W, 133 VA typical

Optional 48 VDC 85W typical

Dimensions

1.75 (1 RU) H x 19.0 W x 18.65 D inches (4.4 H x 48.3 W x 47.4 D cm)

Weight

15 lbs (6.8 kg)

AC Receptacles

Includes restraint for standard IEC-320 inlet