Comtech EF Data CDM-600 Uživatelský manuál stáhnout pdf (Strana 4)

FEC, Modulation & Data Rate Summary Environmental And Physical

FEC Type Modulation

Code

Rate

Data Rate Range*

Viterbi BPSK 1/2 32 kbps – 5 Mbps

Viterbi QPSK 1/2 32 kbps – 10 Mbps

Viterbi QPSK 3/4 32 kbps – 15 Mbps

Viterbi QPSK 7/8 32 kbps – 17.5 Mbps

Viterbi + RS (201/219) BPSK 1/2 32 kbps – 4.5 Mbps

Viterbi + RS (201/219) QPSK 1/2 32 kbps – 9.1 Mbps

Viterbi + RS (201/219) QPSK 3/4 32 kbps – 13.7 Mbps

Viterbi + RS (201/219) QPSK 7/8 32 kbps – 16 Mbps

Viterbi + RS (201/219) 16-QAM 3/4 352.4 kbps – 20 Mbps

Viterbi + RS (201/219) 16-QAM 7/8 411.1 kbps – 20 Mbps

TCM + RS (201/219) 8PSK

2/3 234.9 kbps – 18.3

Mbps

TCP BPSK 5/16 32 kbps – 3.1 Mbps

TCP BPSK 21/44 32 kbps – 4.7 Mbps

TCP QPSK 21/44 32 kbps – 9.5 Mbps

TCP QPSK 3/4 32 kbps – 15 Mbps

TCP QPSK 7/8 32 kbps – 17.5 Mbps

TCP QPSK 17/18 32 kbps – 18.8 Mbps

TCP 8PSK 3/4 288 kbps – 20 Mbps

TCP 8PSK 7/8 336 kbps – 20 Mbps

TCP 8PSK 17/18 362.7 kbps – 20 Mbps

TCP 16-QAM 3/4 384 kbps – 20 Mbps

TCP 16-QAM 7/8 448 kbps – 20 Mbps

*Unframed operation

Enhanced D&I++ for G.703 E1

Single G.703 E1

Frame Format E1-CCS Only

Time Slots Any combination of 1 to 31 time slots can be

dropped or inserted

Interoperability Interoperable with CDM-600/600L for

combinations of up to 24 time slots (E1-CCS frame

format, Viterbi and TPC FEC only).

Quad G.703 E1

Frame Format E1-CCS Only

Time Slots For each E1, any combination of 1 to 31 time slots

can be dropped or inserted

Framing

Overhead

0.4% (EDMAC/AUPC additional if needed)

Interoperability Quad G.703 E1 Only

Ber Performance

Met with two adjacent carriers 7 dB higher at 1.3 channel spacing

Guaranteed E

, in dB

Consult the CDM-Qx Manual for a comprehensive listing of the

performance of all FEC types, Code Rates, Modulation types, and

Data Rate ranges.

TPC BPSK QPSK

5/6

2.4

2.8

21/44

2.9

3.3

21/44

3.5

3.6

3/4 7/8

3.8 4.3

4.4 4.5

17/18

6.8

7.4

TPC 8PSK 16-QAM

3/4

6.2

6.8

7/8

7.0

7.2

17/18

9.3

10.3

3/4 7/8

7.4 8.1

8.2 8.3

Refer to the Whitepaper for Eb/No Degradation due to DoubleTalk

Carrier-in-Carrier.

A white paper, DoubleTalk

Carrier-in-Carrier

Bandwidth Compression

Providing Significant Improvements in Satellite Transponder Bandwidth, is

available on the Comtech EF Data web site on the White Papers page,

under All Collateral.

Temperature Operating: 0 to 50ºC (32 to 122°F)

Storage: -25 to 85ºC (-13 to 185ºF)

Power Supply 100 to 240 VAC, 50/60 Hz, auto sensing

-48 VDC (option)

Power

Consumption

CDM-Qx: < 90 W typical

(Depending on configuration)

CDM-QxL: < 90 W typical, w/o BUC PS

(Depending on configuration)

Dimensions (1RU)

(height x width x

depth)

CDM-Qx:

1.75” x 19.0”” x 19”

(4.4 x 48 x 48 cm) approximate

Weight < 20 lbs (7.0 kg) approximate

(Depending on configuration)

CE Mark EMC

Safety

FCC Part 15

Available Options- Chassis

How Enabled Option

Hardware

75 or 50 0 IF connector (CDM-Qx only)

Hardware Redundant primary power supply

Hardware 0.1 ppm reference (CDM-Qx only)

Hardware -48 VDC power supply

Hardware BUC PS 24 VDC, 80 W @ 50°C, 100 W @ 30°C, AC

or DC input (CDM-QxL only)

Hardware BUC PS 48 VDC, 150 W @ 50°C,180 W @ 30°C, AC

or DC input (CDM-QxL only)

FAST 1:1, 1:2, or 1:3 Internal Redundancy*

FAST DoubleTalk Carrier-in-Carrier to 512 kbps

FAST DoubleTalk Carrier-in-Carrier to 1 Mbps

FAST DoubleTalk Carrier-in-Carrier to 2.5 Mbps

FAST DoubleTalk Carrier-in-Carrier to 5 Mbps

FAST DoubleTalk Carrier-in-Carrier to 10 Mbps

FAST DoubleTalk Carrier-in-Carrier to 20 Mbps

FAST Enhanced D&I++ for one/both modems

* 1:1 Internal Redundancy for Modem

1:1 or 1:2 or 1:3 Internal Redundancy for Modulator/Demodulator

Modulator/Demodulator/Interface

How Enabled Option

Hardware

Generation Turbo Product Coding module

Hardware 25-Pin EIA-422, V.35 or Sync EIA-232 interface*

Hardware G.703 E1/T1 balanced interface*

Hardware G.703 E1/T1 unbalanced interface*

Hardware G.703 E2 unbalanced interface*

Hardware HSSI interface*

Hardware Quad G.703 E1 interface**

FAST Data rate to 10 Mbps

FAST Data rate to 20 Mbps

FAST 8PSK

FAST 16-QAM

* A data interface is only needed for the demodulator card when the

modulator and demodulator are used together as a modem. In this

case, all input and output data is routed through the demodulator’s

data interface.

** Unlike other data interfaces, Quad G.703 E1 interface requires 2 full

slots (3 and 4) in the CDM-Qx/QxL chassis.

Accessories

CRS-311-Qx 1:1 Modem Redundancy Switch

CRS-300-Qx 1:10 Modem Redundancy Switch

1 2 3 4

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