How do i connect the ramsa da7 to my mac to record

depends what you want to do, adat, t/dif etc would I assume give you 8 bus to mac feeding.

* 16 balanced XLR and 1/4" TRS Mic/line analog inputs

* 16 analog inserts (pre A/D)

* AES/S/PDIF (2 Ch.) digital I/O, Word Clock In/Out, MIDI, IN/OUT, MIDI Machine Control (MMC) RS-422/485, are standard

* Optional ADAT lightpipe, TASCAM/TDIF, AES-EBU-SPDIF and analog AD-DA 8-Channel

How do i connect the ramsa da7 to my mac to record?

Man, you'll need an interface card or Unit to use, either FW400/800 or USB, then lock through W/clock/Adat sync or lightpipe - TDIF is a Parallel format, thus it takes much more fuss to connect, serial protocols like LightPipe will go 8 in/out x 2 giving you 24 In/Out on RME units and MOTU with true  24 bit/48Khz @ at a great speed.

Bus x 8 out from the Ramsa at a time (Or go Direct Line In, making Stems or Tracks (Individual) of Drums/Vox/Beats etc, and you'll chew up less CPU as you've got Hardware. The DA7 is still a nice little Digital console! Power to you *****

Grab A DAW program, and away you go man! You are........Recording!
Hope this helps!