-- U.S. data center operator Equinix (NasdaqGS: EQIX - news ) to acquire British peer Telecity Group (LSE: TCY.L - news ) (notified Sept. 24/deadline Oct (HKSE: 3366-OL.HK - news ) .
Refer to the input text as context and select the correct relationship between 'Equinix' and 'data center' from the available options.
Options: position held, subsidiary, product/material produced, currency