Comtech-ef-data RCF6001 Manual do Utilizador descarregar pdf (Página 19)

RCF6001 Satellite Terminal Installation

TM082 - Rev. 1.0

Page 2-7

33 DF Demod Fault - Open

Collector

Output

27 CS-B Clear to Send B (+) Output

11* DM-A Data Mode A (-) Output

29* DM-B Data Mode B (+) Output

13 RR-A Receiver Ready A (-) Output

31 RR-B Receiver Ready B (+) Output

3 BAL EXC-

External Clock A (-) Input

21 BAL EXC-

External Clock B (+) Input

16 RX-0-A Receive Octet A (-) Output

34 RX-0 B Receive Octet B (+) Output

17 TT-A Terminal Timing A (-) Input

35 TT-B Terminal Timing B (+) Input

1, 19, 20, 37 GND Signal Ground

*NOTE: The DMD2401 Satellite Modem has the capability of constantly outputting the DM/DSR

signal. (DSR and DM are actually the same signal). The modem is always in the condition of

being able to pass data. DTR input to the modem is not necessary. The DM/DSR output of the

modem is located on pins 11 and 29 as shown above.

J6 – Ext. Ref. IN

This port is used for injecting an External Reference Frequency into the modem. The DMD2401

master oscillator is locked to this source. All internally generated frequencies within the modem

will attain the stability of the applied external reference. The external reference must meet the

following parameters:

Frequency: 256 KHz to 10 MHz in multiples of 8 KHz

Amplitude: 0.2 V p-p to 5 V p-p

Type: Sinewave or Squarewave

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Comtech-ef-data RCF6001 Manual do Utilizador Página 19