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Rcs10 modem and redundant control system – Comtech EF Data RCS10 User Manual

Page 239

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Warranty Policy

RCS10 Modem and Redundancy Control System

Page 5-2

TM058 - Rev. 2.3

RCS10 Modem and

Redundant Control System

System

Number of Modems: Up to ten (10) DMD10 modem modules. Back-up Modems: Up to two (2)
DMD10 modems may be designated as backup modems.

Possible Redundancy

Configurations:

1 to 9 non-redundant modems

One configuration, 1:1 through 1:9

One configuration, 2:2 through 2:8

Two independent 1:N configurations

Power:

Two independent AC power supplies

Modulator

Modulation:

BPSK, QPSK, (8PSK, OQPSK, Optional)

Data Rates:

9.6 Kbps to 8.448 Mbps, 1 bps steps

IF Tuning Range:

50 to 180 MHz in 1 Hz steps

IF Impedance:

75 ohms

IF Connector:

BNC (At RCS10 Back Panel)

IF Return Loss:

20 dB Minimum

Output Power:

-20 to + 5.0 dB in 0.1 dB steps

Output Stability:

±

0.5 dB

Output Spectrum:

Meets IESS308/309 Power Spectral mask

Spurious:

< -55 dBc

On/Off Power Ratio:

> 60 dB

Scrambler:

CCITT V.35 or IBS (Others optional)

Encoder:

Viterbi, K=7 (Sequential optional)

Code Rates:

1/2, 3/4 and 7/8

Data Clock Source:

Internal or External

Internal Stability:

±

1 X 10

-5

Demodulator

Demodulation:

BPSK, QPSK (8PSK, OQPSK optional)

Data Rates:

9.6 Kbps to 8.448 Mbps, 1 bps steps

IF Tuning Range:

50 to 180 MHz in 1 Hz steps

IF Impedance:

75 ohms

IF Connector:

BNC (at RCS10 Back Panel)

IF Return Loss:

20 dB Minimum