Connection via HKEX’s CG
By using CG, Participants may be able to reduce the setup and the maintenance cost of NG hardware to be housed in their offices. In case of failure of HKEX’s CG, HKEX can arrange contingency gateway for Participants shortly in order to mitigate the disruption to Participants’ normal operations. Besides, any future enhancement of CG is at HKEX’s own cost.
Connection via Participants’ NGs
If Participants opt to choose NGs for DCASS connection, they have to bear the acquisition cost of NG and the on-going maintenance. In case of failure of Participants’ NGs, Participants have to seek support from their vendors and can also request for the use of HKEX’s contingency gateway which is subject to charge. Lastly, as a transitional arrangement, HKEX will support DCASS connection via NGs until 2017, tentatively.
The maximum number of connections (HKATS + DCASS) to each HKATS Network Gateway (NG) is 10. Participant can install any number of DCASS Server to a HKATS NG provided the total number of HKATS and DCASS connections does not exceed 10 and there is sufficient bandwidth of SDNet/2.
Another alternative is to install a dedicated NG for DCASS, which can be connected to a maximum of 10 DCASS Servers and OAPI applications provided that there is sufficient bandwidth of SDNet/2.
A pair of 3Mbps SDNet/2 lines is optimal for supporting 1 DCASS Server plus up to 3 non-report download related OAPI applications. Please note that Clearing Houses have the absolute discretion to terminate the Participant’s connection with DCASS if the minimum SDNet/2 bandwidth requirement is not fulfilled.