Safran CORTEX CRT Quantum, User Manual

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COMMAND RANGING & TELEMETRY UNIT CORTEX
CRT QUANTUM USER'S MANUAL
Ref. DTU 100042
Is.Rev. 5.17
Date: Dec.
03, 2021Sept. 30, 2021
© Safran Data Systems
This document is the property of
Safran Data Systems
.
It cannot be duplicated or distributed without expressed written consent.
Page 13
2.3.4.1.
Video Test Points
The Video test points are fully programmable from the « CONFIG » window (refer to the MCS User’s Manual and
the TCP/IP Interface Specification, Global Table) for monitoring any baseband signal:
Setting Analog test points (uplink signals) LVTTL test points
VIDEO 1 & VIDEO 2 Sts
Out
J25
Sts Out
J26
Sts Out J27 Sts Out J28
TCU
TCU : analog output
(FSK, PSK, Execute tone, …)
TCU output : data, clock & transmit status
LBW CLK NRZL PCM TX (1)
HBW
direct
PCM
CLK NRZL I data after
PCM
encoding
Q data after
PCM
encoding
HBW
Video
CLK NRZL PCM Not
available
RAU RAU : analog output
(range tones or modulated S/C)
RAU output : tone rank & tone ID
FIRST
(2)
TONE
(3)
TONE (3) TONE (3)
TMS TMS : analog output (PCM/BPSK) TMS output : data & clock (if PSK modulation ON)
CLK NRZL PCM
IFM-I IFM : analog input
(for TCU or TMS modulating signal
only)
IFM input : data & clock of modulating signal
(i = 1 or 2) CLK NRZL PCM
(Not significant)
Analog test points (downlink
signals)
VIDEO 1 & VIDEO 2
IFR-i IFR : analog demodulated output
(i = 1 to 3)
DCU-i DCU : combiner analog demodulated
output (as selected for Output 1)
(i = 1 to 3)
Table 14: Interconnection Panel. Uplink Video Test Points
Note 1 : Active (5 V) during FSK or PSK modulation or transmission of an Execute or pseudo-earth pulse.
Note 2 : Set to 5 V at the beginning of the ranging sequence (transmission of first tone). Drops to 0 V at:

The first measurement performed on the first tone (INMARSAT and LMCO standards) or

The first measurement on the major tone (ESA, ESA-like, USB, and ESA code standard).