Rideshare payload user’s guide october 2022

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SpaceX Ride Share

Table 4-5: Maximum Expected Cable Lengths between Payload EGSE and Payload Electrical Bulkhead
Figure 4-14: Ground Side Electrical Interfaces 4.3.8 TIMING SERVICES

4.3.7

GROUND HARNESS DESIGN
If the Payload is charging in the Launch Vehicle hangar, Customer is expected to provide am (ft) harness to connect the Payload EGSE to SpaceX ground systems. SpaceX will supply the Payload EGSE-side electrical connectors) and any required accessories. The maximum total cable lengths between the Payload EGSE and the SpaceX payload attach fitting pass through bulkhead are listed in Table 4-5. The total cable length between Payload EGSE and the Standard Offering Interface will be determined during Mission design. The general path is shown in Figure 4-14.
Table 4-5: Maximum Expected Cable Lengths between Payload EGSE and Payload Electrical Bulkhead
Launch Site
PPF Hangar
VSFB (SLC-4)
37 m (120 ft)
207 m (679 ft)
CCSFS (SLC-40)
24.5 m (80 ft)
196.5 m (644 ft)
KSC (LC-39A)
24.5 m (80 ft)
180 m (589 ft)

RIDESHARE PAYLOAD USER’S GUIDE
© Space Exploration Technologies Corp. All rights reserved. No US. Export Controlled Data.
37
Figure 4-14: Ground Side Electrical Interfaces
4.3.8

TIMING SERVICES
SpaceX can supply inter-range instrumentation group IRIG-B000 or IRIG-B120 time from its GPS clocks to Customer
EGSE at the PPF.
4.3.9

ELECTRICAL INTERFACE COMPATIBILITY
SpaceX may in its sole discretion require an electrical compatibility test between Launch Vehicle avionics and separation devices. This test will confirm the ability of the Launch Vehicle to initiate and detect separation and will use flight-like systems for both the upstream firing circuit and downstream separation system.

RIDESHARE PAYLOAD USER’S GUIDE
© Space Exploration Technologies Corp. All rights reserved. No US. Export Controlled Data.
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