CCASS/3 - Frequently Asked Questions 

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Q1 What is CCASS/3?

CCASS/3 is a significant technical upgrade of the Central Clearing and Settlement System (CCASS).  It employs advanced technology by providing an improved user interface (MS internet Explorer browser) and the introduction of Participant Gateway (PG).  Apart from the technology upgrade, new functionalities include new securities management system, Delegated Management System (DMS) and a Common Collateral Management System (CCMS).

Q2 What is C3T?

C3T (CCASS/3 Terminal) uses market standard Internet browser technology where Participants can access CCASS/3 using any PC equipped with a support versions of Microsoft Windows and browser.  On-line functions are presented in HTML (windows), which provides a more user-friendly interface.

Q3 What is PG?

PG is a device which facilitates direct linkage between the Participant Supplied System (PSS), the Participant’s back office system and CCASS/3.  Using the PG access mode, CCASS/3 functions are performed by the transmission of standard messages.  Transactions input to the PSS can be routed to CCASS/3 directly, without the need to re-input to CCASS/3 via C3T.  Since PG supports straight-through-processing from PSS to CCASS/3, it is most useful for high volume data exchange where the same data already exist in PSS.

Q4 What is SDNet/2?

Securities and Derivatives Network (SDNet) is an integrated Optical Ethernet network infrastructure for supporting HKEX securities and derivatives trading, clearing and settlement, market data services. 


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