Comtech EF Data DD2401 VME - Manual (Page 59)

DD2401 VME L-Band Demodulator Card Installation & Operational Manual User Interfaces
MN-VME2401 – Rev. B 4-35
<1> Spectrum 0 = Normal, 1 = Inverted
Opcode: <2A11h>
Command a Demodulator’s Buffer Clock
<1> Buffer Clock 0 = External, 1 = Internal, 2 = EXC, 3 = RX SAT
Opcode: <2A12h>
Command a Demodulator’s Buffer Clock Polarity
<1> Buffer Clock
Polarity 0 = Normal, 1 = Inverted
Opcode: <2A17h>
Command a Demodulator’s Operating Mode
<1> Operating Mode 0 = Stop, 1 = 2047 Test
Opcode: <2A1Ah>
Command a Demodulator’s BER Exponent
<1> BER Measure
Period Number of Bits in Measurement Period in Powers of Ten (ex: 6 = 10
6
Bits)
Opcode: <2A1Ch>
Command a Demodulator’s Terrestrial Loopback
<1> Rx Terrestrial
Loopback 0 = Disabled, 1 = Enabled
Opcode: <2A1Dh>
Command a Demodulator’s Baseband Loopback
<1> Rx Baseband
Loopback 0 = Disabled, 1 = Enabled
Opcode: <2A20h>
Command Center Buffer (No Parameters)
Opcode: <2A21h>
Command a Demodulator’s Data Invert
<1> Data Invert 0 = Normal, 1 = Inverted
Opcode: <2A31h>
Command a Demodulator’s Buffer Size
<4> Buffer Size Byte 1 - 2 = buffer size in ms OR Byte 3 - 4 = buffer size in bytes
(Either ms or bytes must be specified - the other field should be
0xFFFF)
4.4.12.2 Module Queries & Commands
Opcode: <2403h> Query a Module’s Identification
Query response
<1> Modem ID DD2401/DD2401L Demodulator = 27
Opcode: <240Eh>
Query Time
Query response
<1>
<1>
<1>
Hour
Minute
Second
0 – 23
0 – 59
0 – 59