Comtech EF Data CDM-625 Manual de usuario descargar pdf (Pagina 5)

Demodulator

Input Power Range, Desired

Carrier

50-180 MHz: -105 + 10 log (symbol rate) to

-70 + 10 log (symbol rate) dBm

950-2250 MHz: -130 + 10 log (symbol rate) to -80 +

10 log (symbol rate) dBm

Max Composite Operating

Level

50-180 MHz:

94 – 10 log (symbol rate, desired carrier) dBc, +10

dBm max., with the additional requirement that

within ± 10 MHz of the desired carrier the

composite power is ≤ +30 dBc

950-2250 MHz:

102 – 10 log (symbol rate, desired carrier) dBc, +10

dBm max., with the additional requirement that

within ± 10 MHz of the desired carrier the

composite power is ≤ +30 dBc

Absolute Maximum

+20 dBm

Adaptive Equalizer

5-tap design, selectable on/off

Acquisition Range

Programmable in 1kHz increments

Below 64 ksymbols/sec

± 1 kHz to ± (Rs/2) kHz, where Rs = symbol rate in

ksymbols/sec

Between 64 and

389 ksymbols/sec

± 1 kHz to ± 32 kHz

Above 389 ksymbols/sec

± 1 kHz to ± (0.1 * Rs) kHz, up to a maximum of ±

200 kHz

Acquisition Time

Highly dependent on data rate, FEC rate, and

demodulator acquisition range.

E.g. 120 ms average at 64 kbps, R1/2 QPSK, ± 10

kHz acquisition sweep range,

6 dB Eb/No

Plesiochronous/

Doppler Buffer

Selectable from 64 to 262,144 bits, in 16-bit steps

(Additional limitations for G.704 frame boundaries)

Receive Clock

RX satellite, TX terrestrial, external reference

Clock Tracking

± 100 ppm minimum

LNB Reference (10 MHz)

Via RX IF center conductor, 10.0 MHz

± 0.06 ppm (with internal reference), selectable

on/off, -3.0 dBm ± 3 dB

LNB Voltage

Selectable on/off, 13 VDC, 18 VDC per DiSEq 4.2

and 24 VDC at 500 mA maximum

Monitor Functions

estimate, corrected BER, frequency offset,

buffer fill state, receive signal level

DoubleTalk Carrier-in-Carrier

Delay Range

0 to 330 ms

Power Spectral Density

Ratio

(Interferer to Desired)

BSPK/QPSK/8PSK/8-QAM: –7 dB to

+11 dB

16-QAM: -7 dB to +7 dB

Maximum Symbol Rate

Ratio

3:1 (TX:RX or RX:TX)

Eb/No Degradation

0 dB Power Spectral Density Ratio

BPSK/QPSK/OQPSK: 0.3 dB

8-QAM: 0.4 dB

8PSK: 0.5 dB

8-ARY: 0.4 dB

16-QAM: 0.6 dB

16-ARY; 0.6 dB

32-ARY: 0.6 dB

+10 dB power spectral density ratio

Additional 0.3 dB

Satellite Restrictions

Satellite in “loop-back” mode (i.e., the transmit

station can receive itself)

“Non-processing” satellite (i.e., does not

demodulate or remodulate the signal)

Available Options

Hardware

100 – 240 VAC, 175 W AC primary power supply

Hardware

-48 VDC, 125 W primary power supply

Hardware

-24 VDC, 120 W primary power supply

Hardware

24 VDC, 90 W @ 50°C BUC power supply, AC, 24 VDC or 48 VDC

primary power supply

Hardware

48 VDC, 150 W @ 50°C (180 W @ 30°C) BUC power supply, AC or

48 VDC primary power supply

Hardware

VersaFEC-2 Codec module

Hardware

Integrated TPC (2

generation) and LDPC Codec module

Hardware

Packet Processor

Hardware

Environmentally Resistant (ER) Version

FAST

L-Band IF (in addition to 70/140 MHz)

FAST

Modem data rate – 10 Mbps, 15 Mbps, 20 Mbps or 25 Mbps

FAST

8PSK and 8-QAM modulation (8-QAM requires TPC/LDPC or

VersaFEC Codec)

FAST

16-QAM modulation

FAST

TPC/LDPC Codec data rate – 10 Mbps, 15 Mbps, 20 Mbps or 25

Mbps

FAST

Activate DoubleTalk Carrier-in-Carrier Feature

FAST

DoubleTalk Carrier-in-Carrier Data Rate (full) – 512 kbps, 1.1 Mbps,

2.5 Mbps, 5 Mbps, 10 Mbps, 15 Mbps, 20 Mbps or 25 Mbps

FAST

DoubleTalk Carrier-in-Carrier Data Rate (fractional) – 2.5 Mbps, 5

Mbps, 10 Mbps, 15 Mbps, 20 Mbps or 25 Mbps

FAST

VersaFEC Codec data rate (CCM) – 1.1 Mbps, 2.5 Mbps, 5 Mbps or

16 Mbps

FAST

VersaFEC Codec symbol rate (ACM) – 300 ksps, 1.2 Msps or

4.1 Msps

FAST

Open network – IBS with high rate IBS ESC, IDR and audio

FAST

D&I / D&I++ for single Port T1/E1

FAST

D&I++ For Quad E1 Port 2, 3 and 4

FAST

Quality of Service (requires Packet Processor)

FAST

Header Compression (requires Packet Processor)

FAST

Payload Compression (requires Packet processor)

FAST

Advanced Network Timing (IEEE 1588v2 PTP)

FAST

VersaFEC-2 Codec data rate (CCM) – 5 Mbps, 10 Mbps, 15 Mbps,

20 Mbps or 25 Mbps

FAST

VersaFEC-2 Codec symbol rate (ACM) – 1.2 Msps, 2.0 Msps, 4.1

Msps, 8.0 Msps or 12.5 Msps

Accessories

CRS-170A

1:1 Modem Redundancy Switch (L-Band)

CRS-180

1:1 Modem Redundancy Switch (70/140 MHz)

CRS-300

1:10 Modem Redundancy Switch

(Not available with Packet Processor)

CRS-280

1:10 IF Redundancy Switch (70/140 MHz)

CRS-280L

1:10 IF Redundancy Switch (L-Band)

CRS-500

1:N Modem Redundancy System

(For use with Packet Processor Only)

CRS-282XXX

1:10 IF Redundancy Switch

(For use with CRS-500)

Environmental and Physical

Temperature

Operating: 0 to 50°C (32 to 122°F)

Storage: -25 to 85°C (-13 to 185°F)

Power Supply

100 – 240 VAC, +6%/-10%, 50/60 Hz, auto sensing

-24 VDC (HW option)

-48 VDC (HW option)

Dimensions (1RU)

(height x width x

depth)

1.75” x 19.0” x 17.65”

(4.4 x 48 x 44.8 cm) approximate

Weight

10.8 lbs (4.9 kg) maximum, with all option modules and

48 VDC BUC power supply installed

CE Mark

EN 301 489-1 (ERM)

EN55022 (Emissions)

EN55024 (Immunity)

EN 61000‐3‐2

EN 61000

‐

EN60950 (Safety)

FCC

FCC Part 15, Subpart B

2114 West 7th Street, Tempe, Arizona 85281 USA

Voice: +1.480.333.2200 ● Fax: +1.480.333.2540 ● Email: sales@comtechefdata.com

See all of Comtech EF Data’s Patents and Patents Pending at http://patents.comtechefdata.com

Comtech EF Data reserves the right to change specifications of products described in this document at any time without notice and without obligation to notify any person of such changes. Information in

this document may differ from that published in other Comtech EF Data documents. Refer to the website or contact Customer Service for the latest released product information

ds-CDM-625A.docx

10/31/2014

1 2 3 4 5

Comentarios a estos manuales

Sin comentarios

Comtech EF Data CDM-625 Manual de usuario Pagina 5

Comentarios a estos manuales

Relacionado con productos y manuales para Redes Comtech EF Data CDM-625