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Comtech EF Data MD2401 User Manual

Page 75

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MD2401 L-Band Multi Demod Installation and Operation Manual

User Interfaces

MN-MD2401

4–43

Revision 7








<1>

*<1>










*<1>








Reserved

Drop Alarm Status










Insert Alarms

Bit 2 = +5 V Alarm
Bit 3 = Temperature Fault
Bit 4 = Interface FPGA Fault
Bit 5 = Battery Fault
Bit 6 = RAM/ROM Fault
Bit 7 = Spare
(0 = Pass, 1 = Fail)

Ignored

Bit 0 = Terrestrial Frame Lock Fault (all modes)

= Terrestrial Multiframe Lock Fault (PCM-30 and PCM-30C only)

Bit 2 = Terrestrial CRC Lock Fault (PCM-30C and PCM-31C only)
Bit 3 = Terrestrial Yellow Alarm Received (T1 only)
Bit 4 = Terrestrial FAS Alarm Received (E1 only)

= Terrestrial MFAS Alarm Received (PCM-30 and PCM-30C only)

Bit 6 = Loss of Terrestrial Signaling (reported by DSP)
Bit 7 = Spare
(0 = Pass, 1 = Fail)

Bit 0 = Frame Lock Fault
Bit 1 = Multiframe Lock Fault
Bit 2 = CRC Lock Fault. Valid only in T1-ESF and E1 – CRC enabled
Bit 3 = T1 Yellow Alarm Received
Bit 4 = E1 FAS Alarm Received
Bit 5 = E1 MFAS Alarm Received
Bit 6 = E1 CRC Alarm Received
Bit 7 = CRC Calculation Fault
(0 = Pass, 1 = Fail)


Opcode: <2600h>

Command a Modem’s Control Mode

<1>

Modem Control
Mode

0 = Front Panel, 1 = Terminal, 2 = Computer


Opcode: <2616h>

Command a Module’s External Reference Source

<1>

External Ref.
Source

0 = Internal, 1 = External


Opcode: <261Bh>

Command a Module’s External Reference Frequency

<4>

External Ref. Freq.

Unsigned Binary Value in Hz


Opcode: <2C03h>

Command Clear all Latched Alarms (No Parameters)

Opcode: <2C04h>

Command Set Time

<1>

<1>

<1>

Hour

Minute

Second

0 - 23

0 – 59

0 – 59


Opcode: <2C05h>

Command Set Date

<1>

Year

0 – 99