Please enable JavaScript.
Coggle requires JavaScript to display documents.
DMC 202 Communication & Tracking (S-band (High Gain Antenna (Nominally…
DMC 202 Communication & Tracking
UHF
2 strings
Communication with EVA crew and VV
Supports up to 5 radios per call
Suit and Visiting Vehicle telemetry
Interfaces with Audio only
S-band
2 strings
Supports
Commands
Telemetry
Audio
Small files
High Gain Antenna
Nominally used
Moveable
72 mbps up, 192 down
2 audio channels
1 Hz
Low Gain Antenna
Backup only
Fixed Position
18 mbps up, 24 down
1 audio channel
0.1 Hz
Controlled by CRONUS
Housekeeping 1&2
Pointed by GNCMDM
Interfaces with audio only
Audio
Voice
C&W sounds
Operated by CRONUS
Internal Audio Controller (IAC) is the control component
AUIU connects S-band to auido
Ku-band
Forward link
2 JSL's
Large file transfers
Internet and email
2 audio channels
Contingency commanding
Inputs from 103 channels
90 data
6 video
2 audio
Command
Telemetry
C2V2
Subsystems
Audio Video Interface Card
Modem
Mass storage
Real Time Flow
Network JSL 1&2
Triple Data Encryption Unit
Performance
25 mbps up, 300 down
700 ms latency
Configured by DMC
DMC records
Video
Video Switching Unit & External Video Switch
Synchronization Control Unit
Time based correction
Master Sync signal
Splitscreen processing
Test signals
DMC routes PL videos
CRONUS routes system/external video