14.4 Electrical Testing Plan
469
X-Frequency Band
Multiplexer and
Responder
X-Frequency Band
SSPA and
Microwave network
S-Frequency Band
Responder and
Microwave network
Power Supply
Subsystem
X-Frequency Band Optical Transceiver
S-Frequency Band Optical Transceiver
Power Supply& Distributing SCOE
Attenuator
GNC SCOE
Lander
X Band
downlink
X Band
uplink
Front
room
(proximal)
Fiber Network Switch
Optical fiber transmission
X-Frequency Band Optical Transceiver
S-Frequency Band Optical Transceiver
Fiber Network Switch
TT&C and DTS SCOE
OCOE SCOE
network
communications
Test
room
(remote)
OBDH
Subsystem
GNC Subsystem
Solar
array
power
supply
Telemetry
Telecom
mand
Ground
signal
Circulator
S Band
uplink
S Band
downlink
Attenuator
X Band
downlink
X Band
uplink
S Band
uplink
S Band
downlink
emetry
command
network
communications
Fig. 14.2 Remote test mode
Table 14.1 Test modes in different test phases for the Chang’E-3 lunar lander
Test phase
Single probe Complex Wired Wireless Local Remote
Single probe test
√
√
√
√
Complex test
√
√
√
EMC test
√
√
√
√
Mechanical Test
√
√
√
Thermal test
√
√
√
√
Electrical test in
technical area at launch
site
√
√
√
√
√
Electrical test at launch
pad
√
√
√